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

In a block and tackle, the mechanical advantage equals the number of rope segments supporting the load — here, 4.

Question 2

Which simple machine is most suitable for splitting a log?

Accepted Answer

Wedge

Answer

A wedge converts a downward driving force into a horizontal splitting force, making it ideal for splitting wood (an ax head is a wedge).

Question 3

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

Accepted Answer

Input distance ÷ Output distance

Answer

Velocity ratio = input distance ÷ output distance; it tells you how much farther the effort moves compared to the load.

Question 4

An ax head is an example of which simple machine?

Accepted Answer

Wedge

Answer

An ax head is a wedge — its tapered shape converts the force of a swing into outward splitting forces on either side.

Question 5

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

Accepted Answer

Fishing rod

Answer

A fishing rod is a third-class lever where the effort is between the fulcrum and load, trading mechanical advantage for a greater output speed and range of motion.

Mechanical Aptitude Test Practice Test

Mechanical Aptitude Test Practice Test

Mechanical Aptitude Simple Machines and Mechanical Advantage Questions and Answers 3