1000+ Power System Interview Questions and Answers Pdf - 1
Question: 1
The efficiency of a nuclear power plant is less than that of a conventional fuel fired thermal plant because of
(A) less injection of heat in the conductor
(B) low pressure and temperature conditions
(C) higher pressure conditions
(D) higher temperature conditions
Ans: B
low pressure and temperature conditions
Question: 2
Flow for active power through a line in a power system may be controlled by
(A) phase shifting transformer
(B) synchronous phase modifier
(C) tap changing transformer
(D) any of the above
Ans: C
tap changing transformer
Question: 3
A shunt reactor in general
(A) reduces steady state power transfer heat
(B) reduces the reactive power consumption
(C) improves steady state power transfer limit
(D) does not affect power transfer
Ans: D
does not affect power transfer
Question: 4
In a dc transmission
(A) power transfer capability is limited by stability considerations
(B) there are no effects due to inductive and capacitive reactance’s
(C) the effects of inductive and capacitive reactance are greater than in ac transmission line of the same rating
(D) it is necessary for the sending and receiving end to be operated in synchronism
Ans: B
there are no effects due to inductive and capacitive reactance’s
Question: 5
The capital cost on a HVDC converter is
(A) more than that of ac substation
(B) same as ac substation
(C) either loss or more than ac substation
(D) less than ac substation
Ans: A
more than that of ac substation
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