MECHANICAL COMPREHENSION ASVAB EXAM QUESTIONS

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MECHANICAL COMPREHENSION ASVAB EXAM QUESTIONS

Qs and Ans - Expert- Explanation - ing score -16 Questions and Answers

-Format: Multiple-choice / Flashcard

Question 1: Power is the

Answer:

the rate of doing work

Question 2: Weight is the

Answer:

the force of gravity on an object

Question 3: Work occurs when

Answer:

a force causes an object to move in the direction of the force Question 4: If a large gear drives a smaller gear, which of the following will not occur?a.)An increase in rotational speed b.)A decrease in torque c.)A change in rotational direction d.)A change in gear ratio

Answer:

d.)A change in gear ratio *The ratio of the gears (a comparison of the number of teeth on the gears) will remain the same.

Question 5: "For every action force there is an equal and opposite reaction force" best summarizes which of Newton's Laws of Motion?

Answer:

Newton's Third Law

Question 6: A lever

Answer:

What measures how much force is applied to an object in order to rotate it?Question 7: Jeremy chucks a baseball as far as he can. His arm is operating as a a.)First-class lever b.)Second-class lever c.)Third-class lever d.)Fourth-class lever

Answer:

c.)Third-class lever

Question 8: The measure of the quantity of matter in an object is its

Answer:

mass

Question 9: Simple machines are useful in that they

Answer:

Reduce the effort in order to accomplish a task Question 10: What is the mechanical advantage of a teeter-totter built so that each seat is 2 meters from the fulcrum?

Answer:

2:2

Question 11: 15 J of work were expended moving an 18 kg block. At what velocity did the block move?

Answer:

1.3 m/s

Question 12: In terms of force, what makes hydraulic jacks so useful?

Answer:

The liquid does not compress very much

Question 13: Which of the following is the best example of an inclined plane?

Answer:

A slide

Question 14: Energy is

Answer:

the capacity to do work

Question 15: How is a wedge different from an inclined plane?

Answer:

A wedge is used in motion Question 16: A farmer is attempting to pull a log with a line of rope attached to a tractor. Where should she watch for breakage on the rope?a.)Nearest to the log b.)Nearest to the tractor c.)In the middle of the length d.)No specific point on the length

Answer:

b.)Nearest to the tractor *The tension on the rope nearest to the tractor is the greatest. This is because tension is greatest where the force is being applied.