Related Questions

Which one of the following is not necessarily the advantage of D.C. motors over A.C. motors?
A Low cost
B Wide speed range
C Stability
D High starting torque
Which of the following motors is most suitable for signaling devices and many kinds of timers?
A D.C. shunt motor
B D.C. series motor
C Induction motor
D Reluctance motor
Which of the following motors is most suitable for signalling devices and many kinds of timers ?
A D.C. shunt motor
B D.C. series motor
C Induction motor
D Reluctance motor
As hysteresis motors are free from mechanical and magnetic vibrations therefore these are considered as suitable for
A fans
B blowers
C sound equipment
D mixer grinders
Which of the following tests will be suitable for testing two similar D.C. series motors of large capacity?
A Swinburne's test
B Hopkinson's test
C Field test
D Brake test
Which of the following motors is preferred when smooth and precise speed control over a wide range is desired?
A D.C. motor
B Squirrel cage induction motor
C Wound rotor induction motor
D Synchronous motor
For three-phase induction motors which of the following is the least efficient method of speed control?
A Cascade control
B Pole changing
C Rheostat control
D Combination of cascade and pole changing
Which PowerPoint feature adds special effects to modify the appearance of the slides and the timing between each slide?
A Color Schemes
B Animation
C Transition Settings
D Handouts
The timing difference between a slow memory and fast processor can be resolved if
A Processor is capable of waiting
B External buffer is used
C Either A or B
D Neither A nor B
The timing belt is attached to the camshaft pulley and
A Timing belt drive pulley
B Distributor
C Radiator fan pulley
D Alternator pulley

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