Electrical Engineering MCQs on Power Transmission Part 19
Contents
Performance tests of power system insulators involve
Performance tests of power system insulators involve:
- Puncture test, mechanical test and porosity test
- Temperature cycle and electromecanical tests
- Dry flushover test and wet flushover tests
- 1 and 2
- 2 and 3
Correct answer: 4. 1 and 2
Also see: Top 5 Types of Insulators Used on Power Transmission and Distribution Lines
Self GMD method is used to evaluate
Self GMD method is used to evaluate:
- Capacitance
- Inductance
- Both of these
- None of these
Correct answer: 2. Inductance
Sag in transmission line depends on
Sag in transmission line depends on:
- Conductor material
- Span of transmission line
- Tension in conductors alone
- All of these
Correct answer: 4. All of these
Explanation: Sag is defined as the difference in level between points of support and the lowest point on the conductor. Continue reading types of sag and its formulas.
In power transmission line, ground is generally carried out at
In power transmission line, ground is generally carried out at:
- Receiving end
- Middle of line
- Supply end
- None of these
Correct answer: 3. Supply end
Shunt conductance in transmission line occurs due to
Shunt conductance in transmission line occurs due to:
- Axial current in conductor
- Leakage over the insulator
- Radial current in conductor
- Short circuiting of line by load
Correct answer: 2. Leakage over the insulator