| Other Electrical Engineering Interview Questions |
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| Question | Asked @ | Answers |
| |
| Explain why machinery used on a.c supply is usually rated
in KVA instead of KW? | | 6 |
| how was the induction stove working? | | 1 |
| power is the product of voltage and current.so we can
measure the value of power just by using ammeter and
voltmeter.......then why do we use a wattmeter? | | 1 |
| which type of motor is suitable for lift? | | 2 |
| what are RCBO ? | GE | 1 |
| Explain the working principle of Vacuum circuit breaker and
Air circuit breaker | HP | 2 |
| how can we represne the analog signal and digital signal if
want to measure the speed and we have to use PLC | | 2 |
| What is an infinite bus bar? | | 3 |
| How to design constatnt power source with variable current
and Voltage. | | 1 |
| 1> what r different types of fault in cables? How will u
locate and test these faults?
2> why earth wire is provided on top throughout the
transmission line. why not only on towers? How much area it
can protect?
3> what r different types of transmission losses? How power
loss can be minimized?
4> what is the % of power loss on transmission lines? | IOCL | 2 |
| what is the advantage of pwm pulse compare to squarewave
pulse. | | 1 |
| why HT voltage rating in multiple of 11 | | 2 |
| what is self commutation how a thyristor discharges through
a capacitor and inductor | | 1 |
| why voltage drop will occurs in 3 phase line? | ABB | 7 |
| What is an Automatic Voltage Regultor & what is its use?
What are the general componets we use to design an
Automatic Voltage Regulator..What are the factors to be
considered for its design? | | 2 |
| Why DC excitation is used for alternators? Why cant it be AC? | Alstom | 15 |
| Whats meant by trivector meter where it is connected at the
substation? | Jakson | 4 |
| How to calculat the size of copper& aluminium wire ? | Hindalco | 1 |
| what is pole slip ? | NTPC | 1 |
| What is the difference between grounding & earthing? | | 2 |
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