ASVAB 2016 PRACTICE AND REVIEW PART 8: MECHANICAL

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ASVAB 2016 PRACTICE AND REVIEW PART 8: MECHANICAL

COMPREHENSION (MC) EXAM QUESTIONS

Actual Qs and Ans - Expert-Verified Explanation -Guaranteed passing score -25 Questions and Answers

-Format: Multiple-choice / Flashcard

Question 1: A vehicle travels at a constant speed on the highway. It can be said that _____.

Answer:

the net force acting on the vehicle are zero

Question 2: Efficiency of a machine is determined by _____.

Answer:

How much of the source energy is converted into usable energy.

Question 3: A wheelbarrow is an example of _____.

Answer:

A second-class lever Question 4: The two pulleys shown have equal weight to move. The following statement is true:

Answer:

The pulleys require the same force to counteract the weight of the object.

Question 5: Torque is _____.

Answer:

The degree to which a force causes an object to rotate

Question 6: In order to hit a baseball so that the ball has greater velocity, the player must _____.

Answer:

Make contact with the ball for a longer period of time.

Question 7: Speed is different from velocity because _____.

Answer:

Velocity involves both speed and direction Question 8: Compared to a smaller mass, a larger mass requires _____ force to achieve the same acceleration rate.

Answer:

More Question 9: Two sign of equal weight are attached to a beam, using cords of equal length. The

following statement is true:

Answer:

The cords holding sign B are under 1/3 the tension of the cord holding sign A

Question 10: A hockey puck sliding o the ice _____.

Answer:

Experiences kinetic friction Question 11: If it takes a force of 20 pounds to stretch the spring one inch, how much force must be applied to stretch the spring three inches?

Answer:

60 pounds Question 12: The following represents the mechanical advantage of a wheel and axle system where the driven wheel has a radius of 10" and the drive wheel has a diameter of 5"?

Answer:

4:1

Question 13: The following is NOT a true statement about the principles that underlie hydraulics?

Answer:

A liquid can be dramatically compressed in order to increase the amount of force the liquid can transfer.

Question 14: If a vehicle accelerates from a standstill at a rate of 1 m/s^2 its velocity after 10 seconds will be _____.

Answer:

10 m/s Question 15: The two water towers below are of equal size and height above the ground. If both towers are completely full and their valves are opened, the following statement is true: _____.

Answer:

Tower B will release more water than tower A Question 16: Mechanical advantage is the advantage gained by the use of _____ in transmitting force.

Answer:

A mechanism Question 17: The following statement is NOT true:

Answer:

The amount of energy in the universe is slowly diminishing.Question 18: If gear A turns in a counterclockwise direction, how does gear B turn?

Answer:

In a clockwise direction

Question 19: The illustration is an example of which kind of lever?

Answer:

First-class lever Question 20: One pound of force is applied to move an object a distance of one foot. How much work has been done?

Answer:

• foot-pound

Question 21: The following statements about weight is NOT true.

Answer:

Weight is not totally dependent on mass

Question 22: The gears in the illustration all have the same number of teeth. If gear X moves clockwise, which statement about gear Y is true?

Answer:

Gear Y moves counterclockwise

Question 23: While attempting to push a heavy box across the floor _____.

Answer:

The coefficient of static friction is dependent on the nature of the surface the box is resting on.

Question 24: Which of the following statements about force is NOT true?

Answer:

force is a scalar quality

Question 25: In order to apply more torque to a bolt, a mechanic could _____.

Answer:

use a longer wrench