Q1.
What is high voltage engineering?
Correct Answer:
B
High voltage engineering deals with generation, transmission and application of high voltages.
Q5.
What is corona discharge?
Correct Answer:
B
Corona is ionization of air near high voltage conductors.
Q7.
What is insulation breakdown?
Correct Answer:
B
Breakdown occurs when insulation fails under stress.
Q9.
What is dielectric strength?
Correct Answer:
B
Dielectric strength is resistance to electrical breakdown.
Q10.
What is partial discharge?
Correct Answer:
B
Partial discharge is localized dielectric failure.
Q11.
What is lightning arrester used for?
Correct Answer:
B
Lightning arrester protects from surge voltages.
Q12.
What is surge in high voltage system?
Correct Answer:
B
Surge is sudden transient overvoltage.
Q14.
What is impulse voltage?
Correct Answer:
B
Impulse voltage is a sudden high magnitude pulse.
Q15.
What is BIL in high voltage engineering?
Correct Answer:
A
BIL defines insulation withstand capability.
Q16.
What is flashover in HV systems?
Correct Answer:
B
Flashover is discharge over insulation surface.
Q17.
What is puncture in insulator?
Correct Answer:
B
Puncture is internal failure of insulation.
Q18.
Which factor increases corona loss?
Correct Answer:
B
Higher voltage and small radius increase corona loss.
Q19.
What is bundle conductor used for?
Correct Answer:
B
Bundle conductors reduce corona effect.
Q20.
What is grading of insulators?
Correct Answer:
B
Grading ensures uniform voltage distribution.
Q21.
What is electrostatic field?
Correct Answer:
B
Electrostatic field is due to stationary charges.
Q22.
What is field stress in HV engineering?
Correct Answer:
B
Field stress refers to electric field intensity.
Q23.
What is creepage distance?
Correct Answer:
B
Creepage is surface path distance on insulator.
Q24.
What is clearance in HV systems?
Correct Answer:
B
Clearance is air distance between conductors.
Q25.
What is ionization in HV systems?
Correct Answer:
B
Ionization creates charged particles in air.
Q26.
What is Townsend discharge?
Correct Answer:
B
Townsend discharge is initial breakdown mechanism.
Q27.
What is streamer discharge?
Correct Answer:
B
Streamer is fast ionization propagation.
Q28.
What is leader discharge?
Correct Answer:
B
Leader forms main lightning channel.
Q29.
What is insulation coordination?
Correct Answer:
B
It ensures proper insulation design against surges.
Q30.
What is switching surge?
Correct Answer:
B
Switching operations create transient overvoltages.
Q31.
What is lightning surge?
Correct Answer:
B
Lightning causes high voltage surges.
Q32.
What is impulse generator used for?
Correct Answer:
B
Impulse generators test insulation strength.
Q33.
What is cascade transformer?
Correct Answer:
B
Cascade transformers are used for HV generation.
Q34.
What is Tesla coil used for?
Correct Answer:
B
Tesla coil generates high frequency high voltage.
Q35.
What is electric field intensity?
Correct Answer:
A
Electric field intensity is force per unit charge.
Q36.
What is capacitance grading?
Correct Answer:
B
Capacitance grading improves voltage distribution.
Q37.
What is corona ring used for?
Correct Answer:
B
Corona rings reduce field concentration.
Q38.
What is pollution flashover?
Correct Answer:
B
Pollution causes surface tracking and flashover.
Q39.
What is tracking in insulators?
Correct Answer:
B
Tracking forms conductive carbon paths.
Q40.
What is arc in HV systems?
Correct Answer:
B
Arc is high temperature electrical discharge.
