A. Horse power only
C. Horse power, r.p.m. and power factor
D. r.p.m. only
A. None of the above
B. Type of bearings
C. Type of enclosure
D. Arrangement for power transmission
A. Flux
B. Armature current
D. Flux and armature current
A. requires starting gear
B. is provided with slip rings
D. has high cost
A. D.C. shunt motor
B. Schrage motor
C. Slip ring induction motor
A. plugging
C. regenerative braking
D. rheostatic braking
A. horsepower rating decreases but r.p.m. increases
B. horsepower rating and operating speed increases
D. horsepower rating and operating speed decreases
A. Torque varies as armature current
C. Torque is zero for zero armature current
D. Torque-armature current is a straight line
B. centrifugal blowers
C. water pumps
D. none of the above
A. d.c. shunt motor
C. schrage motor
D. synchronous motor
B. slightly more than running torque
C. same as running torque
D. double the running torque
A. Capacitor start motor
B. None of the above
D. Shaded pole motor
A. Synchronous motor
B. Any of the above
D. Capacitor start single phase motor
A. Precise control
C. Fast speed control
D. Smooth movement
A. any of the above
B. type of drive
C. span
A. three phase induction motors
C. single phase
D. transformers
A. Schrage motor
B. Universal motor
C. Induction motor
B. Star-delta starting
C. Resistance in stator circuit
D. Auto-transformer starting
A. Series-parallel control
B. Diverter field control
C. Tapped field control
A. induction motor
B. slip ring motor
C. repulsion motor
A. low windage losses
B. slop speed operation
D. all of the above
A. D.C. differentially compound motor
B. Synchronous motor
D. Ward-Leonard controlled D.C. shunt motor
A. Slip ring induction motor
C. Squirrel cage induction motor
D. Pole changing induction motor
A. Reversibility
C. High efficiency operation
D. High starting torque
A. Paper mills
C. Air-conditioners
D. Grinding mills
A. Squirrel cage induction motors
B. Single phase motors
C. Slip ring induction motors
B. Resistance starting
C. Auto-transformer
D. None of the above
A. Light duty
C. All of the above
D. Medium duty
B. needle
C. thrust
D. bush
A. Single phase motor
A. low noise, slow speed motor
B. low torque variable speed motor
C. variable torque motor
A. crowd motion
C. travel in metres
D. angle of swing
A. Squirrel cage induction motor
D. Wound rotor induction motor
A. group drive is preferred
C. synchronous motors are preferred
D. A.C. motors are preferred
A. Five motors of 20 H.P. each
B. Four motors of 25 H.P. each
D. Ten motors of 10 H.P. each
B. Squirrel cage induction motor
C. Synchronous motor
A. Starting voltage is reduced
B. Starting current is reduced
C. Ship ring induction motor
D. Synchronous motor
A. Mercury arc rectifier
B. Motor generator set
C. Silicon diodes
A. Electric shovels
C. Rolling mills
D. Cranes
B. D.C. series motor
A. Lathe
B. Planer
D. Punching machine
A. Lower cost
B. Better efficiency
D. All of the above
A. Operating speed
B. Horse power
C. Starting characteristics
A. Totally enclosed
B. Open type
C. Semi closed
C. Squirel cage induction motor
A. Three phase shunt wound com-mutator motor
D. Cascade controlled A.C. motor
B. auto-transformer
C. star-delta
B. Limitation on starting current
C. Speed control range and its nature
D. Conditions of environment
E. Starting torque
A. Outer race
B. Inner race
D. Cage
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