Related Questions

If a particular application needs high speed and high starting torque, then which of the following motor will bepreferred ?
A Universal motor
B Shaded pole type motor
C Capacitor start motor
D Capacitor start and run motor
Which of the following load normally needs starting torque more than the rated torque?
A Blowers
B Conveyors
C Air compressors
D Centrifugal pumps
The ratio of starting torque to full-load torque is least in case of
A Series motors
B Shunt motors
C Compound motors
D None of the above
The ratio of starting torque to running torque in a synchronous motor is
A zero
B one
C two
D infinity
________ has the least value of starting torque to full load torque ratio.
A D.C. shunt motor
B D.C. series motor
C Squirrel cage induction motor
D Slip ring induction motor
While starting a salient pole synchronous motor by induction motor action and connecting field discharge resistance across field, starting and accelerting torque is produced by
A induction motor torque in field winding
B induction motor torque in damper winding
C eddy current and hysteresis torque in pole faces
D reHetance motor torque due to saliency of the rotor
E all of the above methods
Which of the following motor will give relatively high starting torque ?
A Capacitor start motor
B Capacitor run motor
C Split phase motor
D Shaded pole motor
Following motor is used where high starting torque and wide speed range control is required.
A Single phase capacitor start
B Induction motor
C Synchronous motor
D D.C. motor
Buses, trains, trolleys, hoists, cranes require high starting torque and therefore make use of
A D.C. series motor
B D.C. shunt motor
C Induction motor
D All of above motors
A company produces five types of shirts -- A,B,C,D and E-using cloth of three qualities -- high, medium and low , using dyes of three qualities-- high, medium and low. One shirt requires 1.5 m of cloth .The following table gives respectively : The number of shirts (of each category) produced, in thousands. The percentage distribution of cloth quality in each type of shirt, and The percentage distribution of dye quality in each type of shirt. How many metres of high quality cloth is consumed by A-type shirts?
A 30,00 m
B 24,00 m
C 112,000 m
D 8,00 m

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