Page |1
ASVAB: Mechanical Comprehension
Questions and Correct Answers/ Latest
Update / Already Graded
The wheel of a car has a diameter of 16 inches and moves a smaller
wheel of 4 inches. What is the mechanical advantage gained by the
system?
a.)1:4
b.)4:1
c.)1:2
d.)2:1
Ans: b.)4:1
A lever
a.)Reduces resistance
b.)Multiplies force and changes direction
c.)Transmits power from one object to another
d.)Cannot move in the reverse direction
Ans: b.)Multiplies force and changes direction
Tension can best be called
All rights reserved © 2025/ 2026 |
, Page |2
a.)A weight
b.)A force
c.)A movement
d.)A direction
Ans: b.)A force
Which of the following wedges generates the greatest amount of
force.
a.)11" long and 4" high
b.)9" long and 4" high
c.)7" long and 4" high
d.)5" long and 4" high
Ans: a.)11" long and 4" high
You're trying to replace a flat. How much torque are you applying to a
wheel nut if you're applying 40 pounds with a wrench measuring 9"?
a.)4 ft-lb
b.)30 ft-lb
c.)53 ft-lb
d.)360 ft-lb
All rights reserved © 2025/ 2026 |
, Page |3
Ans: *Torque is calculated by multiplying force (in pounds) and
length (in feet). Thus, 40 pounds multiplied by .75 feet gives us
30 ft-lb of torque.
1 ft=12 in
Divide 9 in by 12 ft=.75ft
b.)30 ft-lb
Which of the following situations requires overcoming the least
amount of kinetic friction?
a.)Pushing an empty refrigerator box down a path
b.)Pushing a refrigerator in its box down a path
c.)Pushing an empty refrigerator box down an icy path
d.)Pushing a refrigerator in its box down an icy path
Ans: c.)Pushing an empty refrigerator box down an icy path
What measures how much force is applied to an object in order to
rotate it?
a.)Torque
b.)Friction
c.)Pressure
d.)Vector
All rights reserved © 2025/ 2026 |
, Page |4
Ans: a.)Torque
Which of the following is NOT a unit of power?
a.)Watt
b.)Horsepower
c.)Volt-ampere
d.)Newton
Ans: d.)Newton
What is the potential energy of a 4 lb. book held 50 feet in the air?
a.)1,960 J
b.)268 J
c.)200 J
d.)27 J
Ans: *Potential energy is calculated by multiplying mass (in
kilograms), acceleration due to gravity, and height (in meters).
Thus, the potential energy of the book is 268.128 J: 1.8
kilograms multiplied by 15.2 meters multiplied by 9.8 m/s2.
b.)268 J
All rights reserved © 2025/ 2026 |
ASVAB: Mechanical Comprehension
Questions and Correct Answers/ Latest
Update / Already Graded
The wheel of a car has a diameter of 16 inches and moves a smaller
wheel of 4 inches. What is the mechanical advantage gained by the
system?
a.)1:4
b.)4:1
c.)1:2
d.)2:1
Ans: b.)4:1
A lever
a.)Reduces resistance
b.)Multiplies force and changes direction
c.)Transmits power from one object to another
d.)Cannot move in the reverse direction
Ans: b.)Multiplies force and changes direction
Tension can best be called
All rights reserved © 2025/ 2026 |
, Page |2
a.)A weight
b.)A force
c.)A movement
d.)A direction
Ans: b.)A force
Which of the following wedges generates the greatest amount of
force.
a.)11" long and 4" high
b.)9" long and 4" high
c.)7" long and 4" high
d.)5" long and 4" high
Ans: a.)11" long and 4" high
You're trying to replace a flat. How much torque are you applying to a
wheel nut if you're applying 40 pounds with a wrench measuring 9"?
a.)4 ft-lb
b.)30 ft-lb
c.)53 ft-lb
d.)360 ft-lb
All rights reserved © 2025/ 2026 |
, Page |3
Ans: *Torque is calculated by multiplying force (in pounds) and
length (in feet). Thus, 40 pounds multiplied by .75 feet gives us
30 ft-lb of torque.
1 ft=12 in
Divide 9 in by 12 ft=.75ft
b.)30 ft-lb
Which of the following situations requires overcoming the least
amount of kinetic friction?
a.)Pushing an empty refrigerator box down a path
b.)Pushing a refrigerator in its box down a path
c.)Pushing an empty refrigerator box down an icy path
d.)Pushing a refrigerator in its box down an icy path
Ans: c.)Pushing an empty refrigerator box down an icy path
What measures how much force is applied to an object in order to
rotate it?
a.)Torque
b.)Friction
c.)Pressure
d.)Vector
All rights reserved © 2025/ 2026 |
, Page |4
Ans: a.)Torque
Which of the following is NOT a unit of power?
a.)Watt
b.)Horsepower
c.)Volt-ampere
d.)Newton
Ans: d.)Newton
What is the potential energy of a 4 lb. book held 50 feet in the air?
a.)1,960 J
b.)268 J
c.)200 J
d.)27 J
Ans: *Potential energy is calculated by multiplying mass (in
kilograms), acceleration due to gravity, and height (in meters).
Thus, the potential energy of the book is 268.128 J: 1.8
kilograms multiplied by 15.2 meters multiplied by 9.8 m/s2.
b.)268 J
All rights reserved © 2025/ 2026 |
