A. Synchronous motor
B. Squirrel cage induction motor
C. Slip ring induction motor
D. Any of the above
Related Mcqs:
- In a rotary converter I2R losses as compared to a D.C. generator of the same size will be___________?
A. same
B. less
C. double
D. three times - Normally, which of the following is used, when a large-scale conversion from AC. to D.C. power is required ?
A. Motor-generator set
B. Motor converter
C. Rotary converter
D. Mercury arc rectifier - 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 - In a mercury arc rectifier, the anode is usually made of_____________?
A. copper
B. aluminium
C. silver
D. graphite
E. tungsten - The applications of selenium rectifiers are usually limited to potential of_____________?
A. 10 V
B. 30 V
C. 60 V
D. 100 V
E. 200 V - Copper oxide rectifier is usually designed not to operate above___________?
A. 10°C
B. 20°C
C. 30°C
D. 45°C - Glass rectifiers are usually made into units capable of D.C. output (maximum continuous rating) of _____________?
A. 100 A at 100 V
B. 200 A at 200 V
C. 300 A at 300 V
D. 400 A at 400 V
E. 500 A at 500 V - Which of the following rectifiers are primarily used for charging of low voltage batteries from AC supply ?
A. Mechanical rectifiers
B. Copper oxide rectifiers
C. Selenium rectifiers
D. Electrolytic rectifiers
E. Mercury arc rectifiers - Which of the following statement is incorrect ?
A. Copper oxide rectifier is a linear device
B. Copper oxide rectifier is not a perfect rectifier
C. Copper oxide rectifier has a low efficiency
D. Copper oxide rectifier finds use in control circuits
E. Copper oxide rectifier is not stable during early life - Which of the following mercury arc rectifier will deliver least undulating current?
A. Six-phase
B. Three-phase
C. Two-phase
D. Single-phase
