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Power Systems
Power Systems Multiple Choice
Quiz 1
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Q.1
What is the value of charging current in short transmission lines?
a) Less than medium transmission lines
b) Equal to medium transmission lines
c) More than medium transmission lines
d) More than long transmission lines
Q.2
What is the value of Inductive reactance in short transmission lines?
a) More at reciving end
b) More at sending end
c) Uniformly distributed over entire length
d) More in middle of sending end and reciving end
Q.3
Regulation of short transmission lines depends:
a) Only on line resistance
b) Only on line inductance
c) Only on line capacitance
d) On line inductance and line resistance
Q.4
What is the percentage voltage regulation of short transmission line if its sending end and reciving end voltages areKV andKV respectively?
a) 30 %
b) 21.21 %
c) 12.12 %
d) 38.22 %
Q.5
A single phase transmission line is transmitting 1,KW power atKV and at unity power fector. If it has a total resistance of 5 Ω, what is the efficiency of the transmission line?
a) 80 %
b) 89.65 %
c) 97.24 %
d) 99.54 %
Q.6
Voltage regulation of a transmission line should be ________
a) Minimum
b) Maximum
c) Greater than 50 %
d) Less than 50 %
Q.7
Which of the following is like equivalent circuit of short transmission line?
a) Series RLC circuit
b) Parallel RLC circuit
c) Series RL circuit
d) Parallel RL circuit
Q.8
In single phase transmission lines resistance and inductance are considered only up to neutral.
a) True
b) False
0 h : 0 m : 1 s
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