Multiple Choice
Electric drive is becoming more and more popular because
A) It is simple, cleaned, compact and reliable
B) It provides easy and smooth control, flexibility in layout, easy starting and facility for remote control
C) It is cheaper in initial as well as in maintenance cost
D) All of the above
Correct Answer:
Verified
Correct Answer:
Verified
Q14: Which off the following motors is preferred
Q15: Which electromagnet is preferred for noiseless operation<br>A)DC
Q16: The basic elements of an electric drive
Q17: Reluctance motor is a<br>A)self-starting type synchronous motors<br>B)low
Q18: The efficiency of reluctance motor is around<br>A)95%<br>B)90%<br>C)75
Q19: Ward-Leonard controlled dc drives are generally used
Q20: A reluctance motor on over-load runs as<br>A)synchronous
Q21: Which of the following machines has heavy
Q23: A reluctance motor<br>A)is compact<br>B)has high cost<br>C)requires starting
Q24: The travelling speed of cranes varies from