Electrical Engineering XYZ MCQs
Which of the following load normally needs starting torque more than rated torque:
- Air compressors
- Blowers
- Centrifugal pumps
- Conveyers
Correct answer: 4. Conveyors
Explanation: Conveyors often require a starting torque that is greater than their rated torque. This requirement stems from the need to overcome the static friction and inertia associated with moving a stationary load, which can be significant, especially if the conveyor is carrying heavy materials or is particularly long. Unlike centrifugal pumps and blowers, which are primarily dealing with fluid dynamics that typically require less torque at startup, conveyors face substantial mechanical resistance when initiating movement, thus necessitating a higher initial torque.