A. d.c. series motor .
B. d.c. shunt motor
C. induction motor
D. synchronous motor
Related Mcqs:
- In induction motors, the length of air gap in kept as small as mechanically possible is order to have____________?
A. low power factor
B. high power factor
C. high over load capacity
D. any of the above - D.C. machines designed with a large value of air gap length have_____________?
A. worst, ventilation
B. poor ventilation
C. better ventilation
D. none of the above - The operation of a D.C. machine with large air gap lengths is comparatively_____________?
A. quiet
B. noisy
C. either of the above
D. none of the above - Which of the following is the major consideration to evolve a good design ?
A. Cost
B. Durability
C. Compliance with performance criteria as laid down in specifications
D. All of the above - Which of the following is the basic consideration in the design of insulation ?
A. Electrical considerations
B. Mechanical considerations
C. Thermal considerations
D. All of the above - Which of the following is the major consideration to evolve a good design?
A. Cost
B. Durability
C. Compliance with performance criteria as laid down in specifications
D. All of the aboveSubmitted by: Abid
- For large power transformers, self oil cooled type or air blast type which of the following values of current density may be used?
A. 1.0 to 1.2 A/mm2
B. 1.5 to 2.0 A/mm2
C. 2.2 to 3.2 A/mm2
D. 3.2 to 4.2 A/mm2 - Disc windings are primarily used in_____________-?
A. short capacity transformers
B. medium capacity transformers
C. high capacity transformers
D. any of the above - By which of the following methods motor rating for variable load drives can be determined ?
A. Method of average losses
B. Equivalent current method
C. Equivalent torque method
D. Equivalent power method
E. All of the above - By which of the following methods the temperature rise of windings and other parts may be determined ?
A. Thermometer method
B. Resistance method
C. Embedded temperature detector method
D. Any of the above
