Which of the following is a potential cause for energy loss in motors?

Energy Efficiency Quiz

Quiz
•
Engineering
•
University
•
Hard
Manidhar Thula
Used 3+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Over-sizing of motors
Under-loading of motors
Both a and b
None of the above
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of under-loading a motor?
It increases the motor's efficiency
It reduces the motor's operational life
It causes higher energy consumption
None of the above
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following can help improve the efficiency of an existing motor?
Rewinding the motor
Upgrading to a larger motor
Using energy-efficient variable speed drives
None of the above
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energy-efficient motors generally have:
Higher power factor
Lower starting current
Better insulation and design
All of the above
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary benefit of using a variable speed drive (VSD) in motors?
It ensures the motor operates at constant speed
It allows motor speed adjustment based on load requirements, leading to energy savings
It increases the motor's output power
It reduces the initial cost of the motor
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of rewinding a motor on its performance?
It improves efficiency
It can lead to reduced efficiency and higher consumption if done improperly
It has no effect on performance
It lowers the motor's operating voltage
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following can reduce transformer losses?
Using low-loss transformer materials
Overloading the transformer
Increasing the operating temperature
Using an oversized transformer
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