Power System Planning and Design (2180903) MCQs

MCQs of Design of power system

Showing 11 to 20 out of 28 Questions
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11.
The size of Gas Insulated Substation is significantly small compared to conventional substation because
(a) High electronegative property of SF6 gas
(b) High dielectric property of SF6 gas
(c) High insulation property of SF6 gas
(d) All of above
Answer:

Option (d)

12.
Gas insulated substations are employed where
(a) Space available is less
(b) Altitude is high
(c) Atmosphere is polluted
(d) All of above
Answer:

Option (d)

13.
Interconnected systems has the advantage of
(a) Reduced reserve plant capacity, capital cost per kW and economy in operation
(b) Improved load factor, diversity factor and operation efficiency and increased reliability of supply
(c) All of above
(d) None of above
Answer:

Option (c)

14.
Major share of power generated in India is through
(a) Hydroelectric power plants
(b) Nuclear power plants
(c) Thermal power plants
(d) Gas turbine power plants
Answer:

Option (c)

15.
What is the modern trend in electric power generation?
(a) To have a large number of small size thermal plants located at different places
(b) To have large size thermal plants near load centre
(c) To have large size thermal plants located near coal fields
(d) None of above
Answer:

Option (c)

16.
Which among the following plants have the least operating cost?
(a) Hydroelectric power plants
(b) Nuclear power plants
(c) Thermal power plants
(d) Gas turbine power plants
Answer:

Option (a)

17.
What are the essential requirements for power plants to be operated as peak load plants?
(a) Capability of quick start, synchronization and taking up of system load
(b) Quick response to load variations
(c) Low capital cost
(d) All of above
Answer:

Option (d)

18.
Annual operating cost of a generating plant consists of
(a) Fixed cost
(b) Semi fixed cost
(c) Running cost
(d) All of above
Answer:

Option (d)

19.
Useful life of nuclear plant is
(a) 10 years
(b) 30 years
(c) 60 years
(d) 100 years
Answer:

Option (b)

20.
What happens in a load shedding?
(a) System voltage is reduced
(b) System frequency is reduced
(c) System loads are switched off
(d) System power factor is changed
Answer:

Option (c)

Showing 11 to 20 out of 28 Questions
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