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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what happens to the water pump if ground water level is slowly decreasing?our water pump is varying from no-load full-load due to this problem

1634

can a 150 kva 3 phase 440v/230V delta-wye step down transformer can be use as step up transfoermer with connected loads at 440v side?

RD Square,

1696

Can a 150 kva 3 phase,440v/230v delta-wye connection stepdown transformer can be used in reverse as a step up tranformer ?

Meralco,

3 4350

Explain the following and how these are working with PLC Unit 1 I/O Module Card 2 Adaptor Card 3 Ribbon Adaptor 4 I/O bus 5 I/O Devices

Mayur,

1582

Cb closed condition if there is a tcs fail whether cb will trip or not

AADC,

1793

If MF is 30000, pt ratio is 110 kV/110 v then what is the ct ratio?

2 3332

what is the chemical reaction of solt and charcoal in earthing?

Shyam Group,

1 2598

Is it really necessary to have reactive power in transmission line to transfer the power from one place to other?

Power Grid,

3 4337

What is the mechanism of WTI

JBS,

1751

What is self exciting?

1649

what is destructive and non-destructive testing of welding

1630

what are the applications of TIG welding

1620

with help of neat sketch explain principle of TIG welding process

1918

briefly explain principle of resistance welding

1821

explain the mode of metal iranafer in Co,welding

1539


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Why r u using pf panel. what the uses

1957


sir, 3phase induction motor takes different pf and different KW in three phase while running,explain reason

1431


What is a copper loss or i2r loss pc?

1103


What is lc oscillator?

1147


According to underground cables a) stress b/w sheath & conductor is high b) inrush of core & conductor

1923


What is the minimum value of hfe for the oscillations in transistorized rc phase shift oscillator?

1205


what is the formula for calculating the phase clerance between two phases and phase to earth how to calculate the cable for a motor

1963


What does the letter CTNM in negative phase sequence relay means?

1757


what is the power rating of CPU, CRT type moniter, LCD type moniter,scanner Approx.

2140


what does mean of RCT and STR in diffrential CT?

4179


Give atleast 20 alternating current apparatus and devices.

1736


explain why core loss of a transformer is almost constant under different load conditions when connected across a constant voltage and constant frequency.

2655


control & auxilary circuits used for circuir breakers

1850


why capacitance effect is predominant in underground cable transmission and inductance effect is predominant in over head line transmission?

3637


How to select HT/MV cable size ?

2420