Multiple Choice
Ward-Leonard controlled dc drives are generally used for
A) light duty excavators
B) medium duty excavators
C) heavy duty excavators
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
Q20: A reluctance motor on over-load runs as<br>A)synchronous
Q21: Which of the following machines has heavy
Q22: Electric drive is becoming more and more
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