High Voltage Engineering Questions and Answers – Generation of Switching Surges

This set of High Voltage Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Generation of Switching Surges”.

1. A switching surge is a _________ duration _________ voltage produced in the system due to sudden opening and closing of switches.
a) short, transient
b) long, transient
c) short, impulse
d) long, impulse
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2. The transient voltage may be _________
a) an oscillatory wave
b) a damped oscillatory wave
c) critically damped wave
d) an oscillatory wave or a damped oscillatory wave
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3. The waveform of switching surge is unique.
a) True
b) False
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4. Surge voltage can be considered as a slow rising impulse with a front time of _________
a) 200-500 ms
b) 100-200 ms
c) 10-100 ms
d) 0.1-10 ms
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5. Surge voltage can be considered as a slow rising impulse with a tail time of _________
a) 200-500 ms
b) 1-several ms
c) 10-10 ns
d) 0.1-10 ns
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6. Transmission lines rated for 220kV and above incorporate switching surge spark over voltage.
a) True
b) False
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7. Tesla coil can produce _________
a) rectangular voltage
b) impulse voltage
c) switching surges
d) oscillatory
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8. What is the tail time of switching impulse voltage according to Indian Standards?
a) 50 μs
b) 250 μs
c) 2500 μs
d) 50 μs
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9. What is the front time of switching impulse voltage according to Indian Standards?
a) 5 μs
b) 250 μs
c) 25 μs
d) 50 μs
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10. The damped oscillations have a frequency of about _________
a) 5-15KHz
b) 10-20KHz
c) 1-10KHz
d) 20-22KHz
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Sanfoundry Global Education & Learning Series – High Voltage Engineering.

To practice all areas of High Voltage Engineering, here is complete set of Multiple Choice Questions and Answers.

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