A. Inner race
B. Outer race
C. Cage
D. Bush
Related Mcqs:
- ___________________is preferred for synthetic fibre mills?
A. Synchronous motor
B. Reluctance motor
C. Series motor
D. Shunt motor - Two oppositely charged balls A and B attract third conducting ball C when placed near them turn by turn. Then ball C must be______________?
A. positively charged
B. electrically neutral
C. negatively charged
D. positively and negatively charged - When the load is above _______________ a synchronous motor is found to be more economical?
A. 2 kW
B. 20 kW
C. 50 kW
D. 100 kW - For a particular application the type of electric-and control gear are determined by which of the following considerations ?
A. Starting torque
B. Conditions of environment
C. Limitation on starting current
D. Speed control range and its nature
E. All of the above - need frequent starting and stopping of electric motors ?
A. Paper mills
B. Grinding mills
C. Air-conditioners
D. Lifts and hoists - The size of an excavator is usually expressed in terms of_________________?
A. ‘crowd’ motion
B. angle of swing
C. cubic metres
D. travel in metres - Which of the following motors is usually preferred for kiln drives ?
A. Cascade controlled A.C. motor
B. Slip ring induction motor
C. Three phase shunt wound com-mutator motor
D. Any of the above - In ______________ the speed can be varied by changing the position of brushes?
A. slip ring motor
B. schrage motor
C. induction motor
D. repulsion motor - The diameter of the rotor shaft for an electric motor depends on which of the following ?
A. r.p.m. only
B. Horse power only
C. Horse power and r.p.m.
D. Horse power, r.p.m. and power factor - Which of the following types of motor enclosure is safest ?
A. Totally enclosed
B. Totally enclosed fan cooled
C. Open type
D. Semi closed
