A. High maintenance cost
B. Continuous losses in motor
C. Noise
D. All of the above
Related Mcqs:
- A synchronous condenser is virtually which of the following?
A. Induction motor
B. Under excited synchronous motor
C. Over excited synchronous motor
D. D.C. generator - Which of the following is the disadvantage of static capacitor for power factor improvement?
A. Easily damaged by high voltage
B. Cannot be repaired
C. Short service life
D. All of the above - 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 - In a distribution system, in order to improve power factor, the synchronous capacitors are installed__________?
A. at the receiving end
B. at the sending end
C. either A. or (b)
D. none of the above - An over excited synchronous motor on no load is known as__________?
A. synchronous condenser
B. generator
C. induction motor
D. alternator - When the demand of consumers is not met by a power plant, it will resort to which of the following?
A. Efficient plant operation
B. Power factor improvement at the , generators
C. Penalising high load consumers by increasing the charges for electricity
D. Load shedding - In which’of the following power plants the maintenance cost is usually high?
A. Nuclear power plant
B. Hydro-electric power plants
C. Thermal power plants
D. Diesel engine power plants - Which of the following is not a source of power?
A. Thermocouple
B. Photovoltaic cell
C. Solar cell
D. Photoelectric cell - Which of the following should be used for extinguishing electrical fires?
A. Water
B. Carbon tetrachloride fire extinguisher
C. Foam type fire extinguisher
D. CO2 fire extinguisher - Which of the following plants is almost inevitably used as base load plant?
A. Diesel engine plant
B. Gas turbine plant
C. Nuclear power plant
D. Pumped storage plant
