Power System Planning and Design (2180903) MCQs

MCQs of Design of power system

Showing 21 to 28 out of 28 Questions
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21.
Why is load shedding done?
(a) Reducing peak demand on the system
(b) Repairing of machines
(c) Power factor improvement
(d) Efficient operation of equipment
Answer:

Option (a)

22.
Generators for the base loads plants are usually designed for maximum efficiency around
(a) Rated load
(b) 20% overload
(c) 70% overload
(d) None of above
Answer:

Option (a)

23.
Operating plant factor is
(a) Average load on the machine
(b) Ratio of average load to the plant capacity
(c) Ratio of maximum load to peak load
(d) Ratio of average load to maximum load
Answer:

Option (a)

24.
For maximum power transfer to take place between two interconnected stations, angle between voltage of the two should be
(a) 0°
(b) 45°
(c) 60°
(d) 90°
Answer:

Option (d)

25.
Economical loading based on incremental rate gives
(a) Best thermal efficiency
(b) Break thermal efficiency
(c) Overall efficiency
(d) Turbine efficiency
Answer:

Option (a)

26.
By interconnection of stations, the cost is
(a) Increased
(b) Reduced
(c) Same as before
(d) Uncertain
Answer:

Option (b)

27.
For stable operation interconnected stations, the element used is
(a) Resistor
(b) Reactor
(c) Capacitor
(d) None of above
Answer:

Option (b)

28.
Quadrature boost employed in the interconnected system is used to transfer
(a) Real power
(b) Reactive power
(c) Apparent power
(d) All of above
Answer:

Option (a)

Showing 21 to 28 out of 28 Questions
1 2 3