ASVAB Mechanical Comprehension Practice Test 299507 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.32
Score	0%	66%

Review

A fixed pulley has a mechanical advantage of:

68% Answer Correctly

	0
	2
	1
	-1

Solution

A fixed pulley is used to change the direction of a force and does not multiply the force applied. As such, it has a mechanical advantage of one. The benefit of a fixed pulley is that it can allow the force to be applied at a more convenient angle, for example, pulling downward or horizontally to lift an object instead of upward.

2 What's the mechanical advantage of a wedge that's 2 inches wide and 10 inches long?

83% Answer Correctly

	11
	2
	15
	5

Solution

The mechanical advantage (MA) of a wedge is its length divided by its thickness:

MA = \( \frac{l}{t} \) = \( \frac{10 in.}{2 in.} \) = 5

Which of the following is not a type of simple machine?

58% Answer Correctly

	pulley
	gear
	lever
	screw

Solution

The six types of simple machines are the lever, wheel and axle, pulley, inclined plane, wedge, and screw.

The science that deals with motion and the forces that produce motion is called which of the following?

57% Answer Correctly

	mechanics
	physics
	engineering
	aeronautics

Solution

Mechanics deals with motion and the forces that produce motion.

Collinear forces:

72% Answer Correctly

	pass through a common point
	are unrelated to each other
	act along the same line of action
	act in a common plane

Solution

Collinear forces act along the same line of action, concurrent forces pass through a common point and coplanar forces act in a common plane.