WTMA Belt and Chain Drives

Question 1

A driving pulley has a diameter of 10 inches and the driven pulley has a diameter of 5 inches. What is the speed of the driven pulley relative to the driving pulley?

Accepted Answer

Twice the speed

Answer

Half the speed

Answer

The same speed

Answer

Four times the speed

Question 2

In an open belt drive connecting two pulleys, both pulleys rotate in:

Accepted Answer

The same direction

Answer

Opposite directions

Answer

Alternating directions

Answer

Perpendicular directions

Question 3

What is the primary advantage of a V-belt over a flat belt for power transmission?

Accepted Answer

Higher friction grip and reduced slipping

Answer

Greater speed capability

Answer

Lower cost and easier installation

Answer

Longer service life in wet conditions

Question 4

To reverse the direction of rotation of a driven pulley in a belt drive, you would use a:

Accepted Answer

Crossed belt drive

Answer

Compound belt drive

Answer

Multi-groove belt drive

Answer

Step pulley arrangement

Question 5

A chain drive is preferred over a belt drive when the application requires:

Accepted Answer

Exact speed ratio with no slip

Answer

Quiet operation at high speeds

Answer

Flexible shaft alignment tolerance

Answer

Low maintenance in dusty environments

Question 6

In a belt drive system, which side of the belt carries the greatest tension?

Accepted Answer

The tight side

Answer

The slack side

Answer

Both sides equally

Answer

Tension is the same throughout the belt

Question 7

A driving pulley rotates at 600 RPM with an 8-inch diameter and drives a pulley with a 24-inch diameter. What is the speed of the driven pulley?

Accepted Answer

200 RPM

Answer

100 RPM

Answer

400 RPM

Answer

1,800 RPM