# User:Guy vandegrift/Quizbank/Archive1/How things work/Sample exam 3

## HTW T3 sample

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### HTW T3 sample-v1s1

1. ${\displaystyle {\frac {360\,{\text{degrees}}}{30\,{\text{days}}}}={\frac {36}{3}}\,}$, calculates that the Moon moves approximately 13 ______

___ a) degrees per day across the sky
___ b) degrees per day compared to the fixed stars
___ c) degrees per hour across the sky
___ d) degrees per hour compared to the fixed stars

2. Analog computers were phased out by the dawn of the twentieth century (circa 1900)

___ a) true
___ b) false

3. One minute of arc describes and angle 60 times smaller than one degree, which is NOT equal to the observed angular motion of a star in one minute.

___ a) true
___ b) false

4. ${\displaystyle {\frac {360}{24}}={\frac {36\cdot 10}{12\cdot 2}}={\frac {12\cdot 3\cdot 5\cdot 2}{12\cdot 2\,}}}$, calculates that the Sun moves 15

___ a) degrees per hour compared to the fixed stars
___ b) degrees per day compared to the fixed stars
___ c) degrees per hour across the sky
___ d) degrees per day across the sky

5. The Bombe was a(n) ______________ device used (circa 1940) to defeat the Enigma machine in World War II.}

___ a) electromechanical
___ b) mechanical
___ c) Turing-complete
___ d) electric digital programmable

6. Sothic calendar was an Egyptian calendar with twelve months of 30 days plus five intercalary days to keep the year synchronous with the Lunar phases.}

___ a) true
___ b) false

7. Eclipse seasons last for approximately ______ and repeat just short of ______}

___ a) six months;   54 years
___ b) 7 days;   one month
___ c) 34 days;   six months
___ d) six months;   18 years
___ e) one month;   18 years

8. Babbage's use of punch cards in the 1930s to solve a problem posed by the Astronomical Society was preceded by such use on the Jacquard loom.

___ a) true
___ b) false

9. A system that uses levers, pulleys, or other mechanical device to perform calculations is called an analog computer

___ a) true
___ b) false

10. How did the Antikythera mechanism compensate for leap years?

___ a) Two concentric dials were independently adjusted by hand; one dial marked a 365 day calendar, and the other marked the position of the Sun with respect to the ecliptic.
___ b) Two concentric dials were independently adjusted by a differential gear; one dial marked a 365 day calendar, and the other marked the position of the Sun with respect to the ecliptic.
___ c) There was no need to compensate for the leap year because the Sothic calendar included a leap year every four years.

11. A star in any of the 12 zodiacal constellations rises and sets near where the Sun rises and sets, except that the cycle is repeated every 24 hours minus approximately 4 minutes.

___ a) true
___ b) false

12. A mechanical analog computer uses pulleys, levers, wheels or some other motion to solve problems of a mathematical nature.

___ a) true
___ b) false

13. Sothic calendar was an Egyptian calendar with twelve months of 30 days plus five intercalary days to keep the year synchronous with the four seasons. }

___ a) true
___ b) false

14. While the Babylonians invented what we call the Saros cycle, they did not call it by that name.

___ a) true
___ b) false

15. The Turing machine was a(n) ______ device

___ a) digital
___ b) electromechanical
___ c) prototype
___ d) analog
___ e) conceptual

16. Which of the following was NOT used as evidence in an effort to guess where the Antikythera device originated?

___ a) The Library of Alexandria, where Ptolemy would later work, would have been a likely destination or origin for the ship.
___ b) Some of the astronomical events associated with the device could have only have been seen from Corinth, a region associated with Archimedes.
___ c) Coins at the site seemed to originate from Pergamon, where an important library was situated.
___ d) Vases found at the site suggest an origin near the trading port of Rhodes, where Hipparchus was believed to have worked.

17. If the machine is at A: 000000, what's next?
___ a) A: 000100
___ b) B: 000100
___ c) A: 000010
___ d) B: 000010

18. The months of the Antikythera device are labeled with Egyptian names transcribed into Greek

___ a) true
___ b) false

19. The Colossus, used to defeat the German Enigma machine during World War II in 1944, was

___ a) mechanical
___ b) electric digital programmable
___ c) Turing-complete
___ d) electromechanical

20. What clue is cited to suggest that the Antikythera device was not the first of its kind?

___ a) Other boxes in the wreck seemed to have held similar devices.
___ b) Instructions for making other devices were found at the wreck site.
___ c) The quality of its manufacture.
___ d) Chemical analysis of the bronze.

21. The Turing machine could not have been invented until after the halting problem was solved.

___ a) true
___ b) false

22. The Antikythera wreck was discovered by _________ in ________.

___ a) sponge divers;   1900
___ b) Jacques-Yves Cousteau;   1976

23. If an eclipse occurs, a simlar eclipse will occur at the next Saros(roughly 18 years later). At this eclipse, the ______ will be the same. (Pick the best answer.)

___ a) day of the month
___ b) time of day
___ c) season of the year

24. The Saros cycle is 18 years plus either 10.321 or 11.321 days. The reason for the variable number of days has to do with

___ a) leap years
___ b) precession of the Moon's orbit
___ c) a wobble in the Moon's orbit
___ d) precession of the equinoxes

25. Babbage's use of punch cards in the 1930s to solve a problem posed by the Astronomical Society was later adopted to the Jacquard loom.

___ a) true
___ b) false

26. Suppose that you see a full moon, but no eclipse. You can be certain that a full moon will also occur exactly one Saros later.

___ a) true
___ b) false

27. If the machine is at B: 000110 , what's next?
___ a) A: 001110
___ b) B: 000111
___ c) B: 001110
___ d) A: 001110

28. The Sothic calendar of 365 days did not include an extra day every four years. As a consequence, it advanced by _____ days in 12 years

___ a) 1
___ b) 2
___ c) 3
___ d) 4

29. Between any given eclipse and the one that occurs one Saros (roughly 18 years) later, there will be approximately ________ lunar and solar eclipses.

___ a) 1
___ b) 20
___ c) 10
___ d) 40
___ e) 2

30. If the machine is at A: 000110, what's next?
___ a) A: 001110
___ b) A: 000110
___ c) B: 001100
___ d) B: 000110

#### Key to HTW T3 sample-v1s1

1. ${\displaystyle {\frac {360\,{\text{degrees}}}{30\,{\text{days}}}}={\frac {36}{3}}\,}$, calculates that the Moon moves approximately 13 ______

- a) degrees per day across the sky
+ b) degrees per day compared to the fixed stars
- c) degrees per hour across the sky
- d) degrees per hour compared to the fixed stars

2. Analog computers were phased out by the dawn of the twentieth century (circa 1900)

- a) true
+ b) false

3. One minute of arc describes and angle 60 times smaller than one degree, which is NOT equal to the observed angular motion of a star in one minute.

+ a) true
- b) false

4. ${\displaystyle {\frac {360}{24}}={\frac {36\cdot 10}{12\cdot 2}}={\frac {12\cdot 3\cdot 5\cdot 2}{12\cdot 2\,}}}$, calculates that the Sun moves 15

- a) degrees per hour compared to the fixed stars
- b) degrees per day compared to the fixed stars
+ c) degrees per hour across the sky
- d) degrees per day across the sky

5. The Bombe was a(n) ______________ device used (circa 1940) to defeat the Enigma machine in World War II.}

+ a) electromechanical
- b) mechanical
- c) Turing-complete
- d) electric digital programmable

6. Sothic calendar was an Egyptian calendar with twelve months of 30 days plus five intercalary days to keep the year synchronous with the Lunar phases.}

- a) true
+ b) false

7. Eclipse seasons last for approximately ______ and repeat just short of ______}

- a) six months;   54 years
- b) 7 days;   one month
+ c) 34 days;   six months
- d) six months;   18 years
- e) one month;   18 years

8. Babbage's use of punch cards in the 1930s to solve a problem posed by the Astronomical Society was preceded by such use on the Jacquard loom.

+ a) true
- b) false

9. A system that uses levers, pulleys, or other mechanical device to perform calculations is called an analog computer

+ a) true
- b) false

10. How did the Antikythera mechanism compensate for leap years?

+ a) Two concentric dials were independently adjusted by hand; one dial marked a 365 day calendar, and the other marked the position of the Sun with respect to the ecliptic.
- b) Two concentric dials were independently adjusted by a differential gear; one dial marked a 365 day calendar, and the other marked the position of the Sun with respect to the ecliptic.
- c) There was no need to compensate for the leap year because the Sothic calendar included a leap year every four years.

11. A star in any of the 12 zodiacal constellations rises and sets near where the Sun rises and sets, except that the cycle is repeated every 24 hours minus approximately 4 minutes.

+ a) true
- b) false

12. A mechanical analog computer uses pulleys, levers, wheels or some other motion to solve problems of a mathematical nature.

+ a) true
- b) false

13. Sothic calendar was an Egyptian calendar with twelve months of 30 days plus five intercalary days to keep the year synchronous with the four seasons. }

+ a) true
- b) false

14. While the Babylonians invented what we call the Saros cycle, they did not call it by that name.

+ a) true
- b) false

15. The Turing machine was a(n) ______ device

- a) digital
- b) electromechanical
- c) prototype
- d) analog
+ e) conceptual

16. Which of the following was NOT used as evidence in an effort to guess where the Antikythera device originated?

+ a) The Library of Alexandria, where Ptolemy would later work, would have been a likely destination or origin for the ship.
- b) Some of the astronomical events associated with the device could have only have been seen from Corinth, a region associated with Archimedes.
- c) Coins at the site seemed to originate from Pergamon, where an important library was situated.
- d) Vases found at the site suggest an origin near the trading port of Rhodes, where Hipparchus was believed to have worked.

17. If the machine is at A: 000000, what's next?
- a) A: 000100
+ b) B: 000100
- c) A: 000010
- d) B: 000010

18. The months of the Antikythera device are labeled with Egyptian names transcribed into Greek

+ a) true
- b) false

19. The Colossus, used to defeat the German Enigma machine during World War II in 1944, was

- a) mechanical
+ b) electric digital programmable
- c) Turing-complete
- d) electromechanical

20. What clue is cited to suggest that the Antikythera device was not the first of its kind?

- a) Other boxes in the wreck seemed to have held similar devices.
- b) Instructions for making other devices were found at the wreck site.
+ c) The quality of its manufacture.
- d) Chemical analysis of the bronze.

21. The Turing machine could not have been invented until after the halting problem was solved.

- a) true
+ b) false

22. The Antikythera wreck was discovered by _________ in ________.

+ a) sponge divers;   1900
- b) Jacques-Yves Cousteau;   1976

23. If an eclipse occurs, a simlar eclipse will occur at the next Saros(roughly 18 years later). At this eclipse, the ______ will be the same. (Pick the best answer.)

- a) day of the month
- b) time of day
+ c) season of the year

24. The Saros cycle is 18 years plus either 10.321 or 11.321 days. The reason for the variable number of days has to do with

+ a) leap years
- b) precession of the Moon's orbit
- c) a wobble in the Moon's orbit
- d) precession of the equinoxes

25. Babbage's use of punch cards in the 1930s to solve a problem posed by the Astronomical Society was later adopted to the Jacquard loom.

- a) true
+ b) false

26. Suppose that you see a full moon, but no eclipse. You can be certain that a full moon will also occur exactly one Saros later.

+ a) true
- b) false

27. If the machine is at B: 000110 , what's next?
+ a) A: 001110
- b) B: 000111
- c) B: 001110
- d) A: 001110

28. The Sothic calendar of 365 days did not include an extra day every four years. As a consequence, it advanced by _____ days in 12 years

- a) 1
- b) 2
+ c) 3
- d) 4

29. Between any given eclipse and the one that occurs one Saros (roughly 18 years) later, there will be approximately ________ lunar and solar eclipses.

- a) 1
- b) 20
- c) 10
+ d) 40
- e) 2

30. If the machine is at A: 000110, what's next?
- a) A: 001110
- b) A: 000110
- c) B: 001100
+ d) B: 000110

### HTW T3 sample-v2s1

1. ${\displaystyle {\frac {360}{24}}={\frac {36\cdot 10}{12\cdot 2}}={\frac {12\cdot 3\cdot 5\cdot 2}{12\cdot 2\,}}}$, calculates that the Sun moves 15

___ a) degrees per day compared to the fixed stars
___ b) degrees per hour compared to the fixed stars
___ c) degrees per hour across the sky
___ d) degrees per day across the sky

2. Sothic calendar was an Egyptian calendar with twelve months of 30 days plus five intercalary days to keep the year synchronous with the Lunar phases.}

___ a) true
___ b) false

3. The Antikythera wreck was discovered by _________ in ________.

___ a) sponge divers;   1900
___ b) Jacques-Yves Cousteau;   1976

4. Babbage's use of punch cards in the 1930s to solve a problem posed by the Astronomical Society was later adopted to the Jacquard loom.

___ a) true
___ b) false

5. The Colossus, used to defeat the German Enigma machine during World War II in 1944, was

___ a) electromechanical
___ b) electric digital programmable
___ c) mechanical
___ d) Turing-complete

6. The Saros cycle is 18 years plus either 10.321 or 11.321 days. The reason for the variable number of days has to do with

___ a) precession of the equinoxes
___ b) a wobble in the Moon's orbit
___ c) leap years
___ d) precession of the Moon's orbit

7. If the machine is at A: 000000, what's next?
___ a) B: 000010
___ b) A: 000010
___ c) A: 000100
___ d) B: 000100

8. The months of the Antikythera device are labeled with Egyptian names transcribed into Greek

___ a) true
___ b) false

9. Suppose that you see a full moon, but no eclipse. You can be certain that a full moon will also occur exactly one Saros later.

___ a) true
___ b) false

10. If an eclipse occurs, a simlar eclipse will occur at the next Saros(roughly 18 years later). At this eclipse, the ______ will be the same. (Pick the best answer.)

___ a) season of the year
___ b) day of the month
___ c) time of day

11. While the Babylonians invented what we call the Saros cycle, they did not call it by that name.

___ a) true
___ b) false

12. Eclipse seasons last for approximately ______ and repeat just short of ______}

___ a) 7 days;   one month
___ b) one month;   18 years
___ c) six months;   54 years
___ d) six months;   18 years
___ e) 34 days;   six months

13. A system that uses levers, pulleys, or other mechanical device to perform calculations is called an analog computer

___ a) true
___ b) false

14. Which of the following was NOT used as evidence in an effort to guess where the Antikythera device originated?

___ a) Coins at the site seemed to originate from Pergamon, where an important library was situated.
___ b) Vases found at the site suggest an origin near the trading port of Rhodes, where Hipparchus was believed to have worked.
___ c) The Library of Alexandria, where Ptolemy would later work, would have been a likely destination or origin for the ship.
___ d) Some of the astronomical events associated with the device could have only have been seen from Corinth, a region associated with Archimedes.

15. If the machine is at A: 000110, what's next?
___ a) B: 000110
___ b) A: 000110
___ c) B: 001100
___ d) A: 001110

16. Sothic calendar was an Egyptian calendar with twelve months of 30 days plus five intercalary days to keep the year synchronous with the four seasons. }

___ a) true
___ b) false

17. Babbage's use of punch cards in the 1930s to solve a problem posed by the Astronomical Society was preceded by such use on the Jacquard loom.

___ a) true
___ b) false

18. Analog computers were phased out by the dawn of the twentieth century (circa 1900)

___ a) true
___ b) false

19. Between any given eclipse and the one that occurs one Saros (roughly 18 years) later, there will be approximately ________ lunar and solar eclipses.

___ a) 2
___ b) 10
___ c) 1
___ d) 20
___ e) 40

20. One minute of arc describes and angle 60 times smaller than one degree, which is NOT equal to the observed angular motion of a star in one minute.

___ a) true
___ b) false

21. ${\displaystyle {\frac {360\,{\text{degrees}}}{30\,{\text{days}}}}={\frac {36}{3}}\,}$, calculates that the Moon moves approximately 13 ______

___ a) degrees per day across the sky
___ b) degrees per hour across the sky
___ c) degrees per day compared to the fixed stars
___ d) degrees per hour compared to the fixed stars

22. If the machine is at B: 000110 , what's next?
___ a) B: 001110
___ b) B: 000111
___ c) A: 001110
___ d) A: 001110

23. How did the Antikythera mechanism compensate for leap years?

___ a) Two concentric dials were independently adjusted by hand; one dial marked a 365 day calendar, and the other marked the position of the Sun with respect to the ecliptic.
___ b) There was no need to compensate for the leap year because the Sothic calendar included a leap year every four years.
___ c) Two concentric dials were independently adjusted by a differential gear; one dial marked a 365 day calendar, and the other marked the position of the Sun with respect to the ecliptic.

24. A mechanical analog computer uses pulleys, levers, wheels or some other motion to solve problems of a mathematical nature.

___ a) true
___ b) false

25. The Turing machine could not have been invented until after the halting problem was solved.

___ a) true
___ b) false

26. The Turing machine was a(n) ______ device

___ a) conceptual
___ b) electromechanical
___ c) digital
___ d) analog
___ e) prototype

27. A star in any of the 12 zodiacal constellations rises and sets near where the Sun rises and sets, except that the cycle is repeated every 24 hours minus approximately 4 minutes.

___ a) true
___ b) false

28. What clue is cited to suggest that the Antikythera device was not the first of its kind?

___ a) The quality of its manufacture.
___ b) Chemical analysis of the bronze.
___ c) Instructions for making other devices were found at the wreck site.
___ d) Other boxes in the wreck seemed to have held similar devices.

29. The Bombe was a(n) ______________ device used (circa 1940) to defeat the Enigma machine in World War II.}

___ a) mechanical
___ b) electromechanical
___ c) electric digital programmable
___ d) Turing-complete

30. The Sothic calendar of 365 days did not include an extra day every four years. As a consequence, it advanced by _____ days in 12 years

___ a) 4
___ b) 1
___ c) 3
___ d) 2

#### Key to HTW T3 sample-v2s1

1. ${\displaystyle {\frac {360}{24}}={\frac {36\cdot 10}{12\cdot 2}}={\frac {12\cdot 3\cdot 5\cdot 2}{12\cdot 2\,}}}$, calculates that the Sun moves 15

- a) degrees per day compared to the fixed stars
- b) degrees per hour compared to the fixed stars
+ c) degrees per hour across the sky
- d) degrees per day across the sky

2. Sothic calendar was an Egyptian calendar with twelve months of 30 days plus five intercalary days to keep the year synchronous with the Lunar phases.}

- a) true
+ b) false

3. The Antikythera wreck was discovered by _________ in ________.

+ a) sponge divers;   1900
- b) Jacques-Yves Cousteau;   1976

4. Babbage's use of punch cards in the 1930s to solve a problem posed by the Astronomical Society was later adopted to the Jacquard loom.

- a) true
+ b) false

5. The Colossus, used to defeat the German Enigma machine during World War II in 1944, was

- a) electromechanical
+ b) electric digital programmable
- c) mechanical
- d) Turing-complete

6. The Saros cycle is 18 years plus either 10.321 or 11.321 days. The reason for the variable number of days has to do with

- a) precession of the equinoxes
- b) a wobble in the Moon's orbit
+ c) leap years
- d) precession of the Moon's orbit

7. If the machine is at A: 000000, what's next?
- a) B: 000010
- b) A: 000010
- c) A: 000100
+ d) B: 000100

8. The months of the Antikythera device are labeled with Egyptian names transcribed into Greek

+ a) true
- b) false

9. Suppose that you see a full moon, but no eclipse. You can be certain that a full moon will also occur exactly one Saros later.

+ a) true
- b) false

10. If an eclipse occurs, a simlar eclipse will occur at the next Saros(roughly 18 years later). At this eclipse, the ______ will be the same. (Pick the best answer.)

+ a) season of the year
- b) day of the month
- c) time of day

11. While the Babylonians invented what we call the Saros cycle, they did not call it by that name.

+ a) true
- b) false

12. Eclipse seasons last for approximately ______ and repeat just short of ______}

- a) 7 days;   one month
- b) one month;   18 years
- c) six months;   54 years
- d) six months;   18 years
+ e) 34 days;   six months

13. A system that uses levers, pulleys, or other mechanical device to perform calculations is called an analog computer

+ a) true
- b) false

14. Which of the following was NOT used as evidence in an effort to guess where the Antikythera device originated?

- a) Coins at the site seemed to originate from Pergamon, where an important library was situated.
- b) Vases found at the site suggest an origin near the trading port of Rhodes, where Hipparchus was believed to have worked.
+ c) The Library of Alexandria, where Ptolemy would later work, would have been a likely destination or origin for the ship.
- d) Some of the astronomical events associated with the device could have only have been seen from Corinth, a region associated with Archimedes.

15. If the machine is at A: 000110, what's next?
+ a) B: 000110
- b) A: 000110
- c) B: 001100
- d) A: 001110

16. Sothic calendar was an Egyptian calendar with twelve months of 30 days plus five intercalary days to keep the year synchronous with the four seasons. }

+ a) true
- b) false

17. Babbage's use of punch cards in the 1930s to solve a problem posed by the Astronomical Society was preceded by such use on the Jacquard loom.

+ a) true
- b) false

18. Analog computers were phased out by the dawn of the twentieth century (circa 1900)

- a) true
+ b) false

19. Between any given eclipse and the one that occurs one Saros (roughly 18 years) later, there will be approximately ________ lunar and solar eclipses.

- a) 2
- b) 10
- c) 1
- d) 20
+ e) 40

20. One minute of arc describes and angle 60 times smaller than one degree, which is NOT equal to the observed angular motion of a star in one minute.

+ a) true
- b) false

21. ${\displaystyle {\frac {360\,{\text{degrees}}}{30\,{\text{days}}}}={\frac {36}{3}}\,}$, calculates that the Moon moves approximately 13 ______

- a) degrees per day across the sky
- b) degrees per hour across the sky
+ c) degrees per day compared to the fixed stars
- d) degrees per hour compared to the fixed stars

22. If the machine is at B: 000110 , what's next?
- a) B: 001110
- b) B: 000111
- c) A: 001110
+ d) A: 001110

23. How did the Antikythera mechanism compensate for leap years?

+ a) Two concentric dials were independently adjusted by hand; one dial marked a 365 day calendar, and the other marked the position of the Sun with respect to the ecliptic.
- b) There was no need to compensate for the leap year because the Sothic calendar included a leap year every four years.
- c) Two concentric dials were independently adjusted by a differential gear; one dial marked a 365 day calendar, and the other marked the position of the Sun with respect to the ecliptic.

24. A mechanical analog computer uses pulleys, levers, wheels or some other motion to solve problems of a mathematical nature.

+ a) true
- b) false

25. The Turing machine could not have been invented until after the halting problem was solved.

- a) true
+ b) false

26. The Turing machine was a(n) ______ device

+ a) conceptual
- b) electromechanical
- c) digital
- d) analog
- e) prototype

27. A star in any of the 12 zodiacal constellations rises and sets near where the Sun rises and sets, except that the cycle is repeated every 24 hours minus approximately 4 minutes.

+ a) true
- b) false

28. What clue is cited to suggest that the Antikythera device was not the first of its kind?

+ a) The quality of its manufacture.
- b) Chemical analysis of the bronze.
- c) Instructions for making other devices were found at the wreck site.
- d) Other boxes in the wreck seemed to have held similar devices.

29. The Bombe was a(n) ______________ device used (circa 1940) to defeat the Enigma machine in World War II.}

- a) mechanical
+ b) electromechanical
- c) electric digital programmable
- d) Turing-complete

30. The Sothic calendar of 365 days did not include an extra day every four years. As a consequence, it advanced by _____ days in 12 years

- a) 4
- b) 1
+ c) 3
- d) 2

### HTW T3 sample-v1s2

1. The first English-language usage of the word "computer" referred to

___ a) a person
___ b) Roman numerals
___ c) an abacus
___ d) counting rods

2. As the Sun, Moon, and planets seem to move around the Earth, they remain close to a circle, called the ecliptic, that can be drawn on paper or imagined in the sky. The Babylonians divided this circle into 12 unequal sections of approximately 30 degrees each, and labeled the sections after the zodiacal constellations.

___ a) true
___ b) false

3. Chemical analysis of the bronze used in the gears of the Antikythera device

___ a) suggested that Greek technology was used.
___ b) suggested that a number of such devices had been produced.
___ c) was not possible due to the degree of corrosion.
___ d) suggested that Roman technology was used.

4. Saros (or Sar) was the Babylonian word for the Saros cycle.

___ a) true
___ b) false

5. Suppose that you see a full moon, but no eclipse. You can be certain that a full moon will also occur exactly one Saros later.

___ a) true
___ b) false

6. If the machine is at A: 000110, what's next?
___ a) A: 001110
___ b) B: 001100
___ c) B: 000110
___ d) A: 000110

7.
A ____________ is a gear which has teeth that projects at right angles to the face of the wheel.
___ a) spiral bevel gear
___ b) epicycle gear
___ c) crown gear

8. If the machine is at A: 001110, what's next?
___ a) H: 011110
___ b) B: 011110
___ c) H: 011110
___ d) A: 011110

9. This algorithm halts if it starts at 0:
* If the number is divisible by 10, add 10
* Stop if the number exceeds 100
* Go to top

___ a) true
___ b) false

10. If an eclipse occurs, a simlar eclipse will occur at the next Saros(roughly 18 years later). At this eclipse, the ______ will be the same. (Pick the best answer.)

___ a) day of the month
___ b) time of day
___ c) season of the year

11. If the machine is at B: 000100, what's next?
___ a) B: 000110
___ b) A: 001100
___ c) B: 000110
___ d) A: 000110

12. This algorithm halts if it starts at 0:
* If the number is divisible by 10, divide by 10
* Stop if the number exceeds 100
* Go to top

___ a) true
___ b) false

13. Babbage's account of the origin of the difference engine in the 1820s was that he was working to satisfy the Astronomical Society's desire to predict lunar eclipses

___ a) true
___ b) false

14. In the course of a year, the Sun is always in or near one of the 12 zodiacal constellations

___ a) true
___ b) false

15. Babbage's use of punch cards in the 1930s to solve a problem posed by the Astronomical Society was preceded by such use on the Jacquard loom.

___ a) true
___ b) false

16. As the Sun rises and sets it typically spends 4 minutes in each constellation of the Zodiac

___ a) true
___ b) false

17. Your best friend's pet lizard is thirsty every 2 days, hungry every 3 days, and frisky every 5 days. If she is thirsty, hungry, and frisky today, whe will be thirsty, hungry, and frisky _____ days later

___ a) 40
___ b) 10
___ c) 30
___ d) 15

18. Four minutes times 365 is approximately one

___ a) day
___ b) year
___ c) week
___ d) month

19. Sothic calendar was an Egyptian calendar with twelve months of 30 days plus five intercalary days to keep the year synchronous with the Lunar phases.}

___ a) true
___ b) false

20. The Sothic calendar of 365 days did not include an extra day every four years. As a consequence, it advanced by _____ days in 8 years

___ a) 2
___ b) 1
___ c) 3
___ d) 4

21. As the Sun, Moon, and planets seem to move around the Earth, they remain close to a circle, called the ecliptic, that can be drawn on paper or imagined in the sky. The Babylonians divided this circle into 12 equal sections of 30 degrees each, and labeled the sections after the zodiacal constellations.

___ a) true
___ b) false

22. What remains nearly the same after a single saros cycle has occured?

___ a) phase of moon and earth-moon distance
___ b) phase of moon and position of moon relative to the background stars (i.e. zodiacal location)
___ c) phase of moon and position of sun relative to background stars (i.e. zodiacal location)

23. The months of the Antikythera device are labeled with Greek names transcribed into Egyptian hieroglyphs.

___ a) true
___ b) false

24. The Bombe was a(n) ______________ device used (circa 1940) to defeat the Enigma machine in World War II.}

___ a) Turing-complete
___ b) mechanical
___ c) electric digital programmable
___ d) electromechanical

25. The Turing machine permitted a solution to the halting problem

___ a) true
___ b) false

26. Which of the following was NOT used as evidence in an effort to guess where the Antikythera device originated?

___ a) Vases found at the site suggest an origin near the trading port of Rhodes, where Hipparchus was believed to have worked.
___ b) The Library of Alexandria, where Ptolemy would later work, would have been a likely destination or origin for the ship.
___ c) Coins at the site seemed to originate from Pergamon, where an important library was situated.
___ d) Some of the astronomical events associated with the device could have only have been seen from Corinth, a region associated with Archimedes.

27. Sothic calendar was an Egyptian calendar with twelve months of 30 days plus five intercalary days to keep the year synchronous with the four seasons. }

___ a) true
___ b) false

28. Two great circles on a sphere meet at ______ point(s)

___ a) 4
___ b) 3
___ c) 2
___ d) 1
___ e) 0

29. In London (circa 1935) thousands of vacuum tubes were used to

___ a) count votes in an election
___ b) control a textile mill
___ c) calculate the value of π
___ d) control a telephone exchange

30. Bronze is an alloy consisting primarily of ______, with other metals included ______

___ a) copper;   to make it withstand corrosion.
___ b) iron;   as impurities that served little or no purpose.
___ c) copper;   to make it hard.
___ d) copper;   as impurities that served little or no purpose.

#### Key to HTW T3 sample-v1s2

1. The first English-language usage of the word "computer" referred to

+ a) a person
- b) Roman numerals
- c) an abacus
- d) counting rods

2. As the Sun, Moon, and planets seem to move around the Earth, they remain close to a circle, called the ecliptic, that can be drawn on paper or imagined in the sky. The Babylonians divided this circle into 12 unequal sections of approximately 30 degrees each, and labeled the sections after the zodiacal constellations.

- a) true
+ b) false

3. Chemical analysis of the bronze used in the gears of the Antikythera device

- a) suggested that Greek technology was used.
- b) suggested that a number of such devices had been produced.
+ c) was not possible due to the degree of corrosion.
- d) suggested that Roman technology was used.

4. Saros (or Sar) was the Babylonian word for the Saros cycle.

- a) true
+ b) false

5. Suppose that you see a full moon, but no eclipse. You can be certain that a full moon will also occur exactly one Saros later.

+ a) true
- b) false

6. If the machine is at A: 000110, what's next?
- a) A: 001110
- b) B: 001100
+ c) B: 000110
- d) A: 000110

7.
A ____________ is a gear which has teeth that projects at right angles to the face of the wheel.
- a) spiral bevel gear
- b) epicycle gear
+ c) crown gear

8. If the machine is at A: 001110, what's next?
- a) H: 011110
+ b) B: 011110
- c) H: 011110
- d) A: 011110

9. This algorithm halts if it starts at 0:
* If the number is divisible by 10, add 10
* Stop if the number exceeds 100
* Go to top

+ a) true
- b) false

10. If an eclipse occurs, a simlar eclipse will occur at the next Saros(roughly 18 years later). At this eclipse, the ______ will be the same. (Pick the best answer.)

- a) day of the month
- b) time of day
+ c) season of the year

11. If the machine is at B: 000100, what's next?
- a) B: 000110
- b) A: 001100
- c) B: 000110
+ d) A: 000110

12. This algorithm halts if it starts at 0:
* If the number is divisible by 10, divide by 10
* Stop if the number exceeds 100
* Go to top

- a) true
+ b) false

13. Babbage's account of the origin of the difference engine in the 1820s was that he was working to satisfy the Astronomical Society's desire to predict lunar eclipses

- a) true
+ b) false

14. In the course of a year, the Sun is always in or near one of the 12 zodiacal constellations

+ a) true
- b) false

15. Babbage's use of punch cards in the 1930s to solve a problem posed by the Astronomical Society was preceded by such use on the Jacquard loom.

+ a) true
- b) false

16. As the Sun rises and sets it typically spends 4 minutes in each constellation of the Zodiac

- a) true
+ b) false

17. Your best friend's pet lizard is thirsty every 2 days, hungry every 3 days, and frisky every 5 days. If she is thirsty, hungry, and frisky today, whe will be thirsty, hungry, and frisky _____ days later

- a) 40
- b) 10
+ c) 30
- d) 15

18. Four minutes times 365 is approximately one

+ a) day
- b) year
- c) week
- d) month

19. Sothic calendar was an Egyptian calendar with twelve months of 30 days plus five intercalary days to keep the year synchronous with the Lunar phases.}

- a) true
+ b) false

20. The Sothic calendar of 365 days did not include an extra day every four years. As a consequence, it advanced by _____ days in 8 years

+ a) 2
- b) 1
- c) 3
- d) 4

21. As the Sun, Moon, and planets seem to move around the Earth, they remain close to a circle, called the ecliptic, that can be drawn on paper or imagined in the sky. The Babylonians divided this circle into 12 equal sections of 30 degrees each, and labeled the sections after the zodiacal constellations.

+ a) true
- b) false

22. What remains nearly the same after a single saros cycle has occured?

+ a) phase of moon and earth-moon distance
- b) phase of moon and position of moon relative to the background stars (i.e. zodiacal location)
- c) phase of moon and position of sun relative to background stars (i.e. zodiacal location)

23. The months of the Antikythera device are labeled with Greek names transcribed into Egyptian hieroglyphs.

- a) true
+ b) false

24. The Bombe was a(n) ______________ device used (circa 1940) to defeat the Enigma machine in World War II.}

- a) Turing-complete
- b) mechanical
- c) electric digital programmable
+ d) electromechanical

25. The Turing machine permitted a solution to the halting problem

+ a) true
- b) false

26. Which of the following was NOT used as evidence in an effort to guess where the Antikythera device originated?

- a) Vases found at the site suggest an origin near the trading port of Rhodes, where Hipparchus was believed to have worked.
+ b) The Library of Alexandria, where Ptolemy would later work, would have been a likely destination or origin for the ship.
- c) Coins at the site seemed to originate from Pergamon, where an important library was situated.
- d) Some of the astronomical events associated with the device could have only have been seen from Corinth, a region associated with Archimedes.

27. Sothic calendar was an Egyptian calendar with twelve months of 30 days plus five intercalary days to keep the year synchronous with the four seasons. }

+ a) true
- b) false

28. Two great circles on a sphere meet at ______ point(s)

- a) 4
- b) 3
+ c) 2
- d) 1
- e) 0

29. In London (circa 1935) thousands of vacuum tubes were used to

- a) count votes in an election
- b) control a textile mill
- c) calculate the value of π
+ d) control a telephone exchange

30. Bronze is an alloy consisting primarily of ______, with other metals included ______

- a) copper;   to make it withstand corrosion.
- b) iron;   as impurities that served little or no purpose.
+ c) copper;   to make it hard.
- d) copper;   as impurities that served little or no purpose.

### HTW T3 sample-v2s2

1. Babbage's account of the origin of the difference engine in the 1820s was that he was working to satisfy the Astronomical Society's desire to predict lunar eclipses

___ a) true
___ b) false

2. The first English-language usage of the word "computer" referred to

___ a) a person
___ b) counting rods
___ c) Roman numerals
___ d) an abacus

3. The months of the Antikythera device are labeled with Greek names transcribed into Egyptian hieroglyphs.

___ a) true
___ b) false

4. Two great circles on a sphere meet at ______ point(s)

___ a) 1
___ b) 2
___ c) 0
___ d) 4
___ e) 3

5. As the Sun rises and sets it typically spends 4 minutes in each constellation of the Zodiac

___ a) true
___ b) false

6. This algorithm halts if it starts at 0:
* If the number is divisible by 10, divide by 10
* Stop if the number exceeds 100
* Go to top

___ a) true
___ b) false

7. The Bombe was a(n) ______________ device used (circa 1940) to defeat the Enigma machine in World War II.}

___ a) electromechanical
___ b) Turing-complete
___ c) mechanical
___ d) electric digital programmable

8. Sothic calendar was an Egyptian calendar with twelve months of 30 days plus five intercalary days to keep the year synchronous with the Lunar phases.}

___ a) true
___ b) false

9. If an eclipse occurs, a simlar eclipse will occur at the next Saros(roughly 18 years later). At this eclipse, the ______ will be the same. (Pick the best answer.)

___ a) time of day
___ b) season of the year
___ c) day of the month

10. This algorithm halts if it starts at 0:
* If the number is divisible by 10, add 10
* Stop if the number exceeds 100
* Go to top

___ a) true
___ b) false

11. If the machine is at A: 000110, what's next?
___ a) A: 000110
___ b) B: 001100
___ c) B: 000110
___ d) A: 001110

12. Sothic calendar was an Egyptian calendar with twelve months of 30 days plus five intercalary days to keep the year synchronous with the four seasons. }

___ a) true
___ b) false

13. In the course of a year, the Sun is always in or near one of the 12 zodiacal constellations

___ a) true
___ b) false

14. As the Sun, Moon, and planets seem to move around the Earth, they remain close to a circle, called the ecliptic, that can be drawn on paper or imagined in the sky. The Babylonians divided this circle into 12 equal sections of 30 degrees each, and labeled the sections after the zodiacal constellations.

___ a) true
___ b) false

15. Chemical analysis of the bronze used in the gears of the Antikythera device

___ a) suggested that Roman technology was used.
___ b) suggested that Greek technology was used.
___ c) suggested that a number of such devices had been produced.
___ d) was not possible due to the degree of corrosion.

16. Which of the following was NOT used as evidence in an effort to guess where the Antikythera device originated?

___ a) Some of the astronomical events associated with the device could have only have been seen from Corinth, a region associated with Archimedes.
___ b) Vases found at the site suggest an origin near the trading port of Rhodes, where Hipparchus was believed to have worked.
___ c) The Library of Alexandria, where Ptolemy would later work, would have been a likely destination or origin for the ship.
___ d) Coins at the site seemed to originate from Pergamon, where an important library was situated.

17. Your best friend's pet lizard is thirsty every 2 days, hungry every 3 days, and frisky every 5 days. If she is thirsty, hungry, and frisky today, whe will be thirsty, hungry, and frisky _____ days later

___ a) 15
___ b) 40
___ c) 30
___ d) 10

18. Babbage's use of punch cards in the 1930s to solve a problem posed by the Astronomical Society was preceded by such use on the Jacquard loom.

___ a) true
___ b) false

19. In London (circa 1935) thousands of vacuum tubes were used to

___ a) control a telephone exchange
___ b) count votes in an election
___ c) control a textile mill
___ d) calculate the value of π

20. If the machine is at B: 000100, what's next?
___ a) A: 000110
___ b) B: 000110
___ c) B: 000110
___ d) A: 001100

21. The Turing machine permitted a solution to the halting problem

___ a) true
___ b) false

22.
A ____________ is a gear which has teeth that projects at right angles to the face of the wheel.
___ a) spiral bevel gear
___ b) epicycle gear
___ c) crown gear

23. What remains nearly the same after a single saros cycle has occured?

___ a) phase of moon and position of sun relative to background stars (i.e. zodiacal location)
___ b) phase of moon and position of moon relative to the background stars (i.e. zodiacal location)
___ c) phase of moon and earth-moon distance

24. As the Sun, Moon, and planets seem to move around the Earth, they remain close to a circle, called the ecliptic, that can be drawn on paper or imagined in the sky. The Babylonians divided this circle into 12 unequal sections of approximately 30 degrees each, and labeled the sections after the zodiacal constellations.

___ a) true
___ b) false

25. Suppose that you see a full moon, but no eclipse. You can be certain that a full moon will also occur exactly one Saros later.

___ a) true
___ b) false

26. Saros (or Sar) was the Babylonian word for the Saros cycle.

___ a) true
___ b) false

27. Four minutes times 365 is approximately one

___ a) week
___ b) year
___ c) day
___ d) month

28. Bronze is an alloy consisting primarily of ______, with other metals included ______

___ a) copper;   to make it hard.
___ b) copper;   to make it withstand corrosion.
___ c) copper;   as impurities that served little or no purpose.
___ d) iron;   as impurities that served little or no purpose.

29. If the machine is at A: 001110, what's next?
___ a) H: 011110
___ b) B: 011110
___ c) A: 011110
___ d) H: 011110

30. The Sothic calendar of 365 days did not include an extra day every four years. As a consequence, it advanced by _____ days in 8 years

___ a) 4
___ b) 3
___ c) 2
___ d) 1

#### Key to HTW T3 sample-v2s2

1. Babbage's account of the origin of the difference engine in the 1820s was that he was working to satisfy the Astronomical Society's desire to predict lunar eclipses

- a) true
+ b) false

2. The first English-language usage of the word "computer" referred to

+ a) a person
- b) counting rods
- c) Roman numerals
- d) an abacus

3. The months of the Antikythera device are labeled with Greek names transcribed into Egyptian hieroglyphs.

- a) true
+ b) false

4. Two great circles on a sphere meet at ______ point(s)

- a) 1
+ b) 2
- c) 0
- d) 4
- e) 3

5. As the Sun rises and sets it typically spends 4 minutes in each constellation of the Zodiac

- a) true
+ b) false

6. This algorithm halts if it starts at 0:
* If the number is divisible by 10, divide by 10
* Stop if the number exceeds 100
* Go to top

- a) true
+ b) false

7. The Bombe was a(n) ______________ device used (circa 1940) to defeat the Enigma machine in World War II.}

+ a) electromechanical
- b) Turing-complete
- c) mechanical
- d) electric digital programmable

8. Sothic calendar was an Egyptian calendar with twelve months of 30 days plus five intercalary days to keep the year synchronous with the Lunar phases.}

- a) true
+ b) false

9. If an eclipse occurs, a simlar eclipse will occur at the next Saros(roughly 18 years later). At this eclipse, the ______ will be the same. (Pick the best answer.)

- a) time of day
+ b) season of the year
- c) day of the month

10. This algorithm halts if it starts at 0:
* If the number is divisible by 10, add 10
* Stop if the number exceeds 100
* Go to top

+ a) true
- b) false

11. If the machine is at A: 000110, what's next?
- a) A: 000110
- b) B: 001100
+ c) B: 000110
- d) A: 001110

12. Sothic calendar was an Egyptian calendar with twelve months of 30 days plus five intercalary days to keep the year synchronous with the four seasons. }

+ a) true
- b) false

13. In the course of a year, the Sun is always in or near one of the 12 zodiacal constellations

+ a) true
- b) false

14. As the Sun, Moon, and planets seem to move around the Earth, they remain close to a circle, called the ecliptic, that can be drawn on paper or imagined in the sky. The Babylonians divided this circle into 12 equal sections of 30 degrees each, and labeled the sections after the zodiacal constellations.

+ a) true
- b) false

15. Chemical analysis of the bronze used in the gears of the Antikythera device

- a) suggested that Roman technology was used.
- b) suggested that Greek technology was used.
- c) suggested that a number of such devices had been produced.
+ d) was not possible due to the degree of corrosion.

16. Which of the following was NOT used as evidence in an effort to guess where the Antikythera device originated?

- a) Some of the astronomical events associated with the device could have only have been seen from Corinth, a region associated with Archimedes.
- b) Vases found at the site suggest an origin near the trading port of Rhodes, where Hipparchus was believed to have worked.
+ c) The Library of Alexandria, where Ptolemy would later work, would have been a likely destination or origin for the ship.
- d) Coins at the site seemed to originate from Pergamon, where an important library was situated.

17. Your best friend's pet lizard is thirsty every 2 days, hungry every 3 days, and frisky every 5 days. If she is thirsty, hungry, and frisky today, whe will be thirsty, hungry, and frisky _____ days later

- a) 15
- b) 40
+ c) 30
- d) 10

18. Babbage's use of punch cards in the 1930s to solve a problem posed by the Astronomical Society was preceded by such use on the Jacquard loom.

+ a) true
- b) false

19. In London (circa 1935) thousands of vacuum tubes were used to

+ a) control a telephone exchange
- b) count votes in an election
- c) control a textile mill
- d) calculate the value of π

20. If the machine is at B: 000100, what's next?
+ a) A: 000110
- b) B: 000110
- c) B: 000110
- d) A: 001100

21. The Turing machine permitted a solution to the halting problem

+ a) true
- b) false

22.
A ____________ is a gear which has teeth that projects at right angles to the face of the wheel.
- a) spiral bevel gear
- b) epicycle gear
+ c) crown gear

23. What remains nearly the same after a single saros cycle has occured?

- a) phase of moon and position of sun relative to background stars (i.e. zodiacal location)
- b) phase of moon and position of moon relative to the background stars (i.e. zodiacal location)
+ c) phase of moon and earth-moon distance

24. As the Sun, Moon, and planets seem to move around the Earth, they remain close to a circle, called the ecliptic, that can be drawn on paper or imagined in the sky. The Babylonians divided this circle into 12 unequal sections of approximately 30 degrees each, and labeled the sections after the zodiacal constellations.

- a) true
+ b) false

25. Suppose that you see a full moon, but no eclipse. You can be certain that a full moon will also occur exactly one Saros later.

+ a) true
- b) false

26. Saros (or Sar) was the Babylonian word for the Saros cycle.

- a) true
+ b) false

27. Four minutes times 365 is approximately one

- a) week
- b) year
+ c) day
- d) month

28. Bronze is an alloy consisting primarily of ______, with other metals included ______

+ a) copper;   to make it hard.
- b) copper;   to make it withstand corrosion.
- c) copper;   as impurities that served little or no purpose.
- d) iron;   as impurities that served little or no purpose.

29. If the machine is at A: 001110, what's next?
- a) H: 011110
+ b) B: 011110
- c) A: 011110
- d) H: 011110

30. The Sothic calendar of 365 days did not include an extra day every four years. As a consequence, it advanced by _____ days in 8 years

- a) 4
- b) 3
+ c) 2
- d) 1