ASVAB ASVAB Certifications ASVAB-SECTION-3 Questions & Answers

• Question 161:

  

  If both Wheel A and Wheel B revolve at the same rate in the figure above, Wheel A will cover a linear distance of 12 feet __________.

  A. faster than Wheel B

  B. slower than Wheel B

  C. in about the same time as Wheel B

  D. half as quickly as Wheel B

  Correct Answer: A

  Wheel B has to make more revolutions to cover the same ground as Wheel A, so it will cover the distance more slowly.

• Question 162:

  

  The baskets are balanced on the arm in the figure above. If cherries are removed from Basket B, to rebalance the arm __________.

  A. The fulcrum will have to be moved to the right.

  B. Basket B will have to be moved to the right.

  C. Basket A will have to be moved to the left.

  D. Basket A will have to be moved to the right.

  Correct Answer: D

  Moving Basket A to the right counterbalances the loss of cherries from Basket B.

• Question 163:

  A simple pulley gives a mechanical advantage of __________.

  A. 2

  B. 3

  C. 1

  D. unknown

  Correct Answer: C

  A simple pulley gives no mechanical advantage, although it does make work easier by spreading out the work needed over several tries. So the mechanical advantage is 1.

• Question 164:

  

  In the figure above, which angle is braced most solidly?

  A. A

  B. B

  C. C

  D. All are braced equally solidly.

  Correct Answer: A

  The brace on Angle A covers more area of the angle, so it's more solidly braced.

• Question 165:

  

  In the figure above, at what point was the ball traveling most slowly?

  A. A

  B. B

  C. C

  D. D

  Correct Answer: C

  At the height of the arc, the ball has no upward momentum, so it goes the slowest at that point.

• Question 166:

  

  A runner is being used in the figure shown.

  How much effort (disregard friction, wind resistance, and the weight of the pulley and the rope) is using the cat lover lifting the 50-pound crate (with cat)?

  A. 50-pound effort

  B. 100-pound effort

  C. 25-pound effort

  D. 10-pound effort

  Correct Answer: A

  Stationary pulleys give no mechanical advantage, so effort equals the weight of the crate or 50 pounds.

• Question 167:

  A wood tool, a silver tool, and a steel tool are placed in boiling water for cleaning. Which tool gets the hottest?

  A. steel

  B. wood

  C. silver

  D. All three are equally hot.

  Correct Answer: C

  Silver is the best conductor, so it becomes hottest.

• Question 168:

  

  The pressure gauge in the figure above shows a reading of __________.

  A. 15.0

  B. 19.5

  C. 21.0

  D. 23.0

  Correct Answer: C

  The gauge shows a reading of 21.

• Question 169:

  A way to determine the amount of power being used is to __________.

  A. Multiply the amount of work done by the time it takes.

  B. Multiply the distance covered by the time it takes to move a load.

  C. Divide the amount of work done by 550 pounds per second.

  D. Divide the amount of work done by the amount of time it takes.

  Correct Answer: D

  The formula for determining power is Power = Work ÷ Time.

• Question 170:

  

  If Gear 1 moves in a clockwise direction, which other gears also turn clockwise?

  A. 3 and 5

  B. 3, 4, and 5

  C. 2 and 5

  D. 3 and 4

  Correct Answer: A

  Gears with their teeth together in mesh turn in opposite directions. Gear 1 turns clockwise. Gear 2, in mesh with Gear 1, turns counterclockwise. Gear 3, in mesh with Gear 2, turns clockwise. Gear 4, in mesh with Gear 3, turns counterclockwise. Gear 5, in mesh with Gear 2, turns clockwise.