Year 2024

Week # 3 Quiz 2

Q1. Buchholz relay is used for the protection in case of a

Q2. The per unit value of a 2 ohm resistor at 100 MVA base and 10 kV base voltage is

Q3. An electric arc is a visible plasma discharge between two electrodes that is caused by _____ ionizing gasses in the air.

Q4. The voltages that appears across the breaking contact at the instant of arc extinction is called_______

Q5. Both voltage and current signals are required for

Q6. Which method provides cash for the replacement of asset at the end of its useful life?

Q7. A circuit is disconnected by isolators when...

Q8. Per unit of any quantity is defined as

Q9. During the insulation co-ordination in the substation, the lowest insulation strength is at

Q10. A differential amplifier has a differential gain of 20,000. CMRR=80 dB. The common mode gain is