A. Electric shovels
B. Cranes
C. Rolling mills
D. All of the above
In which of the following applications the load on motor changes in cyclic order ? Read More »
Electrical Engineering Mcqs, Industrial Drives A. Pole changing squirrel cage motors
B. D.C. motors with Ward-leonard con-trol
C. A.C. slip ring motors with variable resistance
D. Any of the above
For derries and winches which of the following drives can be used ? Read More »
Electrical Engineering Mcqs, Industrial Drives A. d.c. shunt motor
B. schrage motor
C. synchronous motor
D. slip ring induction motor
A. Slip ring induction motor
B. Synchronous motor
C. D.C. shunt motor
D. Schrage motor
___________________has least range of speed control? Read More »
Electrical Engineering Mcqs, Industrial Drives A. paper mills
B. steel mills
C. moist atmospheres
D. explosive atmospheres
Flame proof motors are used in_________________? Read More »
Electrical Engineering Mcqs, Industrial Drives A. Resistance in rotor circuit
B. Resistance in stator circuit
C. Auto-transformer starting
D. Star-delta starting
A. transformers
B. cooling ranges
C. three phase induction motors
D. single phase
Heat control switches are used in__________________? Read More »
Electrical Engineering Mcqs, Industrial Drives A. heavy
B. medium
C. normal
D. low
In jaw crushers a motor has to often start against ____________________ load? Read More »
Electrical Engineering Mcqs, Industrial Drives A. Cascade controlled A.C. motor
B. Slip ring induction motor
C. Three phase shunt wound com-mutator motor
D. Any of the above
Which of the following motors is usually preferred for kiln drives ? Read More »
Electrical Engineering Mcqs, Industrial Drives A. Synchronous motor
B. Ship ring induction motor
C. Squirrel cage induction motor
D. D.C. shunt motor
__________________ has relatively wider range of speed control? Read More »
Electrical Engineering Mcqs, Industrial Drives