High Voltage Engineering MCQs Part 9
Today Electrical Engineering shares most important High Voltage Engineering MCQs part 9. These MCQs are very important for your competitive exams and concepts testing. Let’s start learning.
- The term counterpoise in high voltage engineering is referred to:
- A large-sized sphere gap
- Galvanized wire which runs in parallel to the overhead line
- A surge arrester which is installed at distribution station
- None of these
- Correct answer: 2. Galvanized wire which runs in parallel to the overhead line
- The standard shape of impulse wave as specified by the American standard is 1.5/40 μsec. The number 40 is:
- Wave front
- Wave tail
- Wave head
- Wave footing
- Correct answer: 2. Wave tail
- Under standard atmospheric conditions the breakdown voltage for an air gap of 5 mm in a uniform field is:
- 22.52 kV
- 16.40 kV
- 765 kV
- 987 kV
- Correct answer: 2. 16.40 kV
- ____________ is the input to impulse generator:
- DC Supply
- AC Supply
- Impulse
- Triangular a.c
- Correct answer: 1. DC Supply
- The term wave front is associated with ____________:
- Sin
- Triangular
- Square
- Impulse
- Correct answer: 4. Impulse wave
- The term wave front time represents the time taken to:
- Reach from zero to its maximum peak value
- Reach from 0.7 of peak to peak and again back to 0.7 after
- Reach from 0.8 of peak to 0.9 of peak
- None of these
- Correct answer: 1. Reach from zero to its maximum peak value
- An overhead line has a surge impedance of 100 ohms. It is terminated by a resistor R. Value of R which should be used to avoid reflection is:
- 10 ohms
- 100 ohms
- 400 ohms
- 1036 ohms
- Correct answer: 2. 100 ohms
- ____________ is widely employed for measuring HV voltages:
- Field gap
- Sphere gap
- Rod gap
- All of these
- Correct answer: 2. Sphere gap
- The dielectric strength of Glass is:
- 1000 kV/in
- 1500 kV/in
- 2000-3000 kV/in
- 5000-10000 kV/in
- 20000 kV/in
- Correct answer: 3. 2000-3000 kV/in
- Temperature limit for Class E insulation is:
- 90°C
- 120°C
- 180°C
- 400°C
- Correct answer: 2. 120°C
Continue reading:
- High Voltage Engineering MCQs Part 1
- High Voltage Engineering MCQs Part 2
- High Voltage Engineering MCQs Part 3
- High Voltage Engineering MCQs Part 4
- High Voltage Engineering MCQs Part 5
- High Voltage Engineering MCQs Part 6
- High Voltage Engineering MCQs Part 7
- High Voltage Engineering MCQs Part 8
- High Voltage Engineering MCQs Part 10