ASVAB Mechanical
Comprehension
How much force is needed to lift the 10Kg weight? โ Ans -
5 Kg
In a double-pulley system, the force is equal to the weight
divided by two. It will require a 5 Kg force to lift a 10Kg
weight.
The smaller gear has 8 teeth, and the larger gear has 16 teeth.
When the larger gear makes 12 revolutions, how many
revolutions will the smaller gear make? โ Ans - 24
The gear ratio here is 2:1, meaning that for every revolution of
the larger gear, the smaller gear revolves twice. If the larger
gear revolves 12 times, the smaller gear will revolve twice as
many times.
Which of the following is the basis for Pascal's Law? โ Ans -
The amplification of force in a hydraulic system.
The third principle of hydraulics is the basis for Pascal's Law
and states that when pressure is applied to a fluid, the
pressure is transmitted evenly throughout
An 80-lb child is sitting on one end of a seesaw. If another 80-
lb child jumps from a high platform onto the other end of the
seesaw, what will happen? โ Ans - The first child will be
lifted into the air, but remain seated.
The force of the second child landing on the seesaw will propel
the other end of the seesaw into the air.
What is a vector quantity? โ Ans - Gravity
Gravity is a type of force, and since force has magnitude and
direction it is known as a vector quantity.
