Mechanical Aptitude Simple Machines and Mechanical Advantage Questions and Answers 3

Question 1

A block and tackle system has 4 rope segments supporting the movable block. What is its mechanical advantage?

Accepted Answer

4

Answer

2

Answer

8

Answer

1

Question 2

Which simple machine is most suitable for splitting a log?

Accepted Answer

Wedge

Answer

Lever

Answer

Screw

Answer

Wheel and axle

Question 3

The velocity ratio (VR) of a machine is defined as:

Accepted Answer

Input distance ÷ Output distance

Answer

Output distance ÷ Input distance

Answer

Output force ÷ Input force

Answer

Input force ÷ Output force

Question 4

An ax head is an example of which simple machine?

Accepted Answer

Wedge

Answer

Lever

Answer

Screw

Answer

Inclined plane

Question 5

Which of the following tools has a mechanical advantage less than 1?

Accepted Answer

Fishing rod

Answer

Wheelbarrow

Answer

Bottle opener

Answer

Crowbar

Question 6

The pitch of a screw refers to:

Accepted Answer

The distance between adjacent threads

Answer

The outer diameter of the screw

Answer

The total length of the screw

Answer

The hardness of the screw material

Question 7

A single fixed pulley is used to lift a 120 lb load. Ignoring friction, what effort force is required?

Accepted Answer

120 lbs

Answer

60 lbs

Answer

240 lbs

Answer

30 lbs