Belt Drive Quiz

Flat belts are generally used for:

• Short distance power transmission

• Long distance power transmission

• Precise motion transmission

• High torque applications

Belt drive is preferred when shafts are:

• Very close

• At medium or long distance

• Fixed rigidly

• Intersecting at right angle

The velocity ratio of a belt drive neglecting slip is:

• N1/N2 = D2/D1

• N1/N2 = D1/D2

• N1/N2 = (D1 + D2)/(D1 - D2)

• N1/N2 = 1

In flat belts, slip occurs due to:

• Excessive belt tension

• Insufficient friction between belt and pulley

• High speed only

• Large pulley size

The ratio of driving tension (T1) to slack side tension (T2) is:

• e^(μθ)

• e^(θ/μ)

• μθ

• e^(T1 - T2)

Centrifugal tension in a belt is:

• Proportional to mass of belt per unit length

• Inversely proportional to velocity²

• Constant irrespective of velocity

• Zero for V-belts

Condition for maximum power transmission in flat belts:

• T = Tc

• T = 2Tc

• T = 3Tc

• T = 4Tc

Initial tension in a flat belt ensures:

• Belt does not slip at rest

• Reduced friction

• Increased centrifugal force

• None of these

V-belts compared to flat belts:

• Transmit less power

• Transmit more power

• Transmit same power

• Cannot be compared

Which is true about V-belt drive?

• Higher slip than flat belt

• No slip occurs

• Smaller center distance

• Cannot work at high speeds