TUTORIAL 3b-BELT DRIVE

1. V-belts get their name because of...

• their V-shaped cross section

• their dimensions

• their power transmission direction

• their appearance

2. A belt drive consists of ...

• two pulleys & two shafts

• one shaft & two pulleys

• two pulleys, two shaft and a belt

• none

3. Common cross-section of flat belt is....

• rectangular

• square

• trapezoidal

• none

Various commonly used belt materials are....

• leather & fiber

• cotton & rubber

• both (A) & (B)

• none

In a cross belt drive, pulleys rotate in the....

• opposite directions

• same direction

• both (A) & (B)

• none

In an open belt drive, pulleys rotate in the....

• opposites directions

• same direction

• can't say

• none

7. What is the term used to describe the reduction in the velocity ratio of a belt drive system due to insufficient frictional grip?

• Slip

• Creep

• Friction

• Stretch

What factor determines the amount of power transmitted by a belt in a belt drive system?

• Arc of contact

• Conditions of use

• Tension

• Velocity

What is the term used to describe the relative motion between the belt and pulley surfaces due to changes in length of the belt?

• Slip

• Creep

• Friction

• Stretch

What is the portion of the belt with less tension known as?

• Slack side

• Stretch side

• Loose side

• Tight side