Power Systems Questions and Answers – Capacitance of a Two-Wire Line

This set of Power Systems Multiple Choice Questions & Answers (MCQs) focuses on “Capacitance of a Two-Wire Line”

1. The presence of ozone while the corona has occurred, can be found using ________
a) pressure
b) hissing noises
c) faint luminous glow of bluish colour
d) all of the mentioned
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2. The corona has only disadvantages to the transmission system.
a) True
b) False
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3. The very peculiar advantage of corona in the circuit can be ___________
a) reduction in steepness of surge fronts
b) improvement of power factor
c) reduction in radio interference
d) reduction in steepness, radio interference and improvement of PF
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4. When the ozone gas is produced as a by product of corona, that causes _______
a) corrosion of wires
b) reduction of power factor
c) increase of power factor
d) improvement of regulation
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5. Critical voltage limit of the transmission line can be increased by ____________
a) increasing conductor’s radius
b) increasing conductor spacing
c) reducing conductor spacing
d) reducing radius of conductor
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6. In a transmission system, the transmission parameters of distribution is/are ___________
a) resistance
b) inductance
c) capacitance and shunt conductance
d) resistance, inductance, capacitance and shunt conductance
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7. Following effects of the transmission lines
(i) Skin effect
(ii) Corona
(iii) Proximity
The effective resistance of the conductor is increased by __________
a) (i), (ii)
b) (i), (iii)
c) (ii), (iii)
d) (i), (ii), (iii)
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8. _______ is neglected while carrying out short transmission line analysis.
a) Shunt admittance
b) Power losses
c) Series impedance
d) None of the mentioned
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9. We transpose high voltages especially while transmitting so that the __________
a) phase voltage imbalances can be minimised
b) corona losses are reduced
c) voltage drop is minimised
d) all of the mentioned
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10. While modelling a short transmission line of the overhead lines, line resistance and inductances are only considered because the line capacitance is ___________
a) zero
b) finite but small
c) finite but large
d) infinite
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Sanfoundry Global Education & Learning Series – Power Systems.

To practice all areas of Power Systems, here is complete set of 1000+ Multiple Choice Questions and Answers.

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