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Engineering Interview Questions
Questions Answers Views Company eMail

WHY MOSTLY Rph IS USED FOR CONTROL CIRCUITS AUX. SUPPLY ?

UltraTech,

2508

In DC current-excitation to transformer, why it sucks more current? Eventhough there is no power transfer between primary and secondary? R is very low so it should suck less current only na thn y its current increases?

Cairn,

2 5428

explain the methods of measuring aproblem of armature reactionof DC machine?

1970

why a fan starts rotating in the reverse direction when condenser gets damaged?

1 4539

what are earthing material

1 3371

Give me an example of a time when something you tried to accomplish and failed.

3045

how to carried out tan delta test in 11 KV alternator ?

3074

how to carried out DAR test in 11 KV Alternator ?

2308

how to can we synchronize different capacity of DG sets.60kva& 250kva?

Power Plant,

2 5181

what is the minimum insulation resistance for HT AND LT motor ?

3 8445

how to know 28 day strength of concrete knowing 3 day or 7day strength of concrete???

3 7435

what is the advantage of electronic theodolite over transit theodolite?

3 16920

How to check electrical health of Vibration probe?

QAFCO,

1 3566

What safety precautions you will adopt to work on Steam service control valve?

QAFCO,

1 3781

How to calibrate a temperature transmitter & how a Cold junction Compensation will be carried out?

QAFCO,

2 8245


Un-Answered Questions { Engineering }

How to calculate main incomer rating of APFC Panel ? Let's say i want to find main incomer for 11kV, 1000kVAR Panel.

1956


What are the applications of precision diode.

1056


whats the differece between Exd and Exe

4946


How much calorific value of heat is needed to heat 00c of

1912


How temperature compensation is achieved in strain gauges?

1101


What is the gross weight to copper ratio in slip ring induction motor of 4000 HP,6.6 kv, 372amp, 992 rpm GE motor.

2360


what kind of quetions will ask in BHEL in interview? Plz help me?

2118


What is shade?

1


what is different between 2,3&4 wire rtd and how much maximum distance using plc to field.

2781


1)Explain why the cradle guard is used on railway crossing in overhead line construction?

5061


Dear sirs, pls check this 4-20ma to RS485 module datasheet,pls guve me some suggestions. http://www.szsunyuan.com/sy/pro_more.asp?Productid=539 Thanks. E-mail:yunianjiang99@gmail.com

2084


What are the compressor and types?

1058


A 100KVA SINGLE PHASE TRANSFORMER 10000/200V,50HZ REQUIRES 300V AT HV SIDE TO CIRCULATE FULL LOAD CURRENT WITH LV SHORT CIRCUITED.THE INTAKE IS 1000W.THE % OF REGULATION ON FULL LOAD AT 0.8 PF LAGGING WILL BE HOW MUCH AND THE SECONDARY TERMINAL VOLTAGE ON 0.8 PF LEADING WILL BE

2587


when we design electrical schemes of 11/.415kv distribution..wen and were should we show the relays??what is the function of it?for example..we place EFR Relay CT between transformer neutral link and transformer earth.Like this what are the other type of relays we should use?why?where?Explain please..Thank you

1809


we are having 110 Kv,250mA Electrostatic precipitators for coal fired boilers. what will be static voltage and current after discharge and what time it will remain before earthing?

1919