Transmission Line MCQs | Transmission Line Multiple Choice Questions and Answers
Questions
1
Which of the following parameters is not a primary parameter?
Answer: Attenuation constant
2
The networks in which the R, L, C parameters are individually concentrated or lumped at discrete points in the circuit are called
Answer: Lumped
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3
The leakage current in the transmission lines is referred to as the
Answer: Conductance
4
Find the receiving impedance of a transmission line having a voltage of 24V and a conduction current of 1.2A is
Answer: 20
5
The propagation constant of a transmission line with impedance and admittance of 9 and 16 respectively is
Answer: 12
6
Find the characteristic impedance expression in terms of the inductance and capacitance parameters.
Answer: Zo = √(L/C)
7
In long transmission lines Resistance and Capacitance parameters of lines are connected in __________
Answer: Shunt, parallel
8
Range of surge impedance for an underground cables is _____________
Answer: 40 Ω – 60 Ω
9
The voltage rating of long transmission line is _________
Answer: Above 100 KV
11
The characteristic impedance of a transmission line depends upon
Answer: geometrical configuration. of the conductors
12
When the power is to be transmitted over a distance of 500 km, the transmission voltage should be in the range
Answer: 150kV - 220kV
13
In order to reduce skin effect at UHF
Answer: copper lubes with silver plating are used
14
Shunt capacitance is usually neglected in the analysis of
Answer: Short transmission lines
15
Neglecting losses in a transmission system, if the voltage is doubled, for the same power transmission, the weight of conductor material required will be
Answer: one fourth
16
By which of the following systems electric power may be transmitted ?
Answer: Both (a) and (b)
18
The wooden poles well impregnated with creosite oil or any preservative compound have life
Answer: 25 to 30 years
