A. same
B. less
C. double
D. three times
Related Mcqs:
- A rotary converter in general construction and design, is more or less like___________?
A. a transformer
B. an induction motor
C. an alternator
D. any D.C. machine - In a rotary converter armature currents are______________?
A. d.c. only
B. a.c. only
C. partly a.c. and partly d.c. - A rotary converter operates at a______________?
A. low power factor
B. high power factor
C. zero power factor
D. none of the above - A rotary converter is a single machine with______________?
A. one armature and one field
B. two armatures and one field
C. one armature and two fields
D. none of the above - A rotary converter combines the function of____________?
A. an induction motor and a D.C. generator
B. a synchronous motor and a D.C. generator
C. a D.C. series motor and a D.C. generator
D. none of the above - In a single phase rotary converter the number of slip rings will be_____________?
A. two
B. three
C. four
D. six
E. none - With a motor converter it is possible to obtain D.C. voltage only upto__________?
A. 200-100 V
B. 600—800 V
C. 1000—1200 V
D. 1700—2000 V - A synchronous converter can be started______________?
A. by means of a small auxiliary motor
B. from AC. side as induction motor
C. from D.C. side as D.C. motor
D. any of the above methods
E. none of the above methods - Which of the following AC. motors is usually used in large motor-generator sets?
A. Synchronous motor
B. Squirrel cage induction motor
C. Slip ring induction motor
D. Any of the above - If cathode and anode connections in a mercury arc rectifier are inter changed_____________?
A. the rectifier will not operate
B. internal losses will be reduced
C. both ion and electron streams will move in the same direction
D. the rectifier will operate at reduced efficiency
