Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

name the famous power plants present in A.P

Power Grid,

1 2836

Form fator is the ratio of?

5 10094

what is meant by bus bar and outgoing/incoming breaker in an electrical/electronic circuit

3 17547

WHAT IS MEANT BY SYNCHRONISING IN GENSETS

5 9596

Distribution Transformer are connected in configuration? a. Star/delta b. delta/star c. star/star d. delta/delta

IPR, Maruti Suzuki,

7 13751

the power loss in an overloaded line is mainly due to? a. resistance b. capacitance d. inductance d. none

4 6357

voltage at generation stage is usually- ? a.11kv b.33kv c.66kv d.220kv

12 21364

resistance switching is used in case of- ? a. air blast CB b. bulk oil CB c. minimum oil CB d. all types of CB

HCL, SSC,

4 12841

campared to ac, in dc corona loss is

DRDO,

4 11163

In a single phase converter, the no. of SCR conducting during overlap? a.1 b.2 c. 3 d. 4

3 10047

In a three-phase full converter, output voltage pulsates at frequency of a. f b. 2f c. 3f d. 6f

2 7934

In a three-phase full converter, every SCR conducts for a.60deg. b. 120deg. C.180deg. d.90deg

3 6513

In which connection the distribution T/F is connected? a) ▲ / Y b) Y / ▲ c) ▲ / ▲ d) Y / Y

4 7119

Comparing to AC transmission, corona & R in DC transmission is……. a) lower b) higher c) same

3 5943

To transmit the Power which must be present…? a) Reactance b) Resistance c) Capacitance d) none of above

ABC,

9 10169

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Un-Answered Questions { Electrical Engineering }

Why power factor should not be in leading (capacitive) mode of any load.

6880

The simple way of finding the leakage quantity and % in compressed air distribution system

1619

I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?

2258

How to calculate flow of water delivered by pump when pressure & size of pipe line is given

2256

What will be the current drawn by HT motor, if low voltage is applied.. any formula to calculate the LT amps of HT motor.?

1411

why it is not advisable to run low rating (19KVA) DG sets in parallel for long durations even though they are provided with droop ckts (QDC)

1864

How is the resonant peak, resonant frequency, and bandwidth determined from nichols chart?

1043

3 shows a 415 V, 3-phase generator supplying a 3-phase 415/110 V transformer. Draw the individual and combined impedance diagrams to a base of 10 kVA. Determine the system fault kVA and the fault currents at the 415 V and 110 V busbars for short circuit faults on the transformer input or output terminals. Work in p.u. values of impedances.

2618

11kV capacitor bank of rating 2.4KVAR, is charged with protective relays of only over current & Earth fault &.......without Over Voltage, Under Voltage & Neutral Displacement Relay. Is it advisable??

1562

what types of cable used in underground coal mining?

1442

How can we measure earthing resistance test (Earth meggar) of Transformer neutral pit while in live condition?.

2081

what is LSR?

2137

WHAT IS THE FAULT WHEN 100HP TURBINE MOTOR TRIPS, LIST THE FAULTS AND ITS TRABULESHOOTING TIPS.. MY AUTO TARNSFORMER STARTER TRIPS

2042

Explain how to determine capacitor tolerance codes?

1143

Why single phase induction motors are not self starting ?

1615

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