A. induction motors
B. synchronous motors
C. single phase motors
D. d.c. motors
Related Mcqs:
- Low power factor is usually not due to___________?
A. arc lamps
B. induction motors
C. fluorescent tubes
D. incandescent lamp - Which of the following is the disadvantage due to low power factor?
A. Poor voltage regulation
B. Increased transmission losses
C. High cost of equipment for a given load
D. All of the above - Which of the following power plants need the least period for installation ?
A. Thermal power plant
B. Diesel power plant
C. Nuclear power plant
D. Hydro-electric power plant - For high value of diversity factor, a power station of given installed capacity will be in a position to supply?
A. less number of consumers
B. more number of consumers
C. neither A. nor B.
D. either A. or B. - Annual operating expenditure of a power plant consists of____________?
A. fixed charges
B. semi-fixed charges
C. running charges
D. all of the above - A low utilization factor for a plant indicates that
A. plant is used for stand by purpose only
B. plant is under maintenance
C. plant is used for base load only
D. plant is used for peak load as well as base load - __________ will be least affected due to charge in supply voltage frequency.
A. Electric clock
B. Mixer grinder
C. Ceiling fan
D. Room heater - Which of the following is an advantage of static capacitor for power factor improvement?
A. Little maintenance cost
B. Ease in installation
C. Low losses
D. All of the above - An induction motor has relatively high power factor at__________?
A. rated r.p.m.
B. no load
C. 20 percent load
D. near full load - By the use of which of the following power factor can be improved?
A. Phase advancers
B. Synchronous compensators
C. Static capacitors
D. Any of the above
