Electrical Power Transmission MCQs Part 23

Electrical Engineering MCQs on Electrical Power Transmission MCQs Part 23

Phase shift occurs due to which of the following components

Phase shift occurs due to which of the following components:

1. Inductance
2. Capacitance
3. Both of these
4. None of these

Correct answer: 3. Both of these

Explanation:

Phase shift constant is denoted using Greek alphabet Beta symbol β.

The phase shift occurs due to inductance and capacitance components in the transmission line. It is measured in degrees or radians.

Critical disruptive voltage is defined as the voltage at which

Critical disruptive voltage is defined as the voltage at which

1. Corona is just initiated
2. Corona is visible with blue or violet color
3. Both of these
4. None of these

Correct answer: 1. Corona is just initiated

Resistance switching in normally employed in

Resistance switching in normally employed in

1. Air blast circuit breaker
2. Bulk oil breakers
3. Minimum oil breakers
4. All of these

Correct answer: 1. Air blast circuit breaker

Generally ships are supplied power using

Generally ships are supplied power using

1. Diesel engine
2. Hydraulic turbine
3. Steam accumulator
4. None of above

Correct answer: 1. Diesel engine

Corona in transmission lines is accompanied by

Corona in transmission lines is accompanied by

1. Hissing sound
2. Power loss and interference
3. Violet visible light
4. All of these

Correct answer: 4. All of these