Engineering Interview Questions
Questions Answers Views Company eMail

hra

1 2374

Due to the sensitive earth fault Our Power plant Get Tripped Several Times, It happens in the morning time daily, When temperature rises that means sun rises the earth fault current get lower, in this situation What should I do to get rid of this Problem?

2 3220

How to calculate 1 brss for RCC work  

Allied Group, Jyoti Structures Ltd,

1589

we are having 15kw and 3kw motor both can run in same time , instead of using copper we are using ug aluminium cable , 35 sq.mm is suitable for its current carrying capacity..?

Afflatus Grauver Pvt Ltd,

1292

Sir, Please tell me that how I will calculate the efficiency of rectifier. Because input is ac and output is dc. Is it right to put two unlike signal together.

2 2128

Why  we are always  only used 11 kv.  , 22 kv ,33kv      in transmission line? Why not use 25,  55 ,65 kv ?

Khidmah LLC, Precision Camshafts Limited,

3 4158

What is the effect of atmospheric pressure & Temp; on efficiency of motor? Why NGR(Neutral Grounding Resistor) is used in 132/11 KV Transformer & how? What is the use of Auto T/F in Grid Station?

K-Electric Limited,

1403

I faced several time siemens ps2 positioner automatically getting Chang in it's set point direction after auto calibration  So is there any causes biside this or  any  permissives ?

1371

whats the coloring code of a air to open or a air to close valve?

1318

In Generator How suction compression power and exhaust works ?

Sify,

1428

what is B , c & d curves in MCB characteristics i e Full Form of B , C & D . sir please give me answer

NCC,

1 2939

How to get a pipe weight? if we have know only diameter and length.

Bhel,

2 3844

what are the measuring instrument used to measure Radial and axial clearances of the gas turbine?

1 2545

what is the bow of the shaft?

MRF,

1 2465

Why camber is provided?

G R InfraProjects, Tata Steel Limited,

2 5513


Un-Answered Questions { Engineering }

Why is schottky diode called hot-carrier diode?

573


i want some quiz question on auto mobile can someone suggest any website for this

1644


How to find out damper winding failure for synchronous machine?

975


Which reactor has no moderator ?

614


In dc ckt. 24v or 110v, which one is more efficient and why?

1718






Why is the study of gyroscopes motion required to learn aircraft applications?

624


What is the difference between isotropic material and homogeneous material ?

600


If 320 grade Gear oil is used in a reduction gear box,what can be themaximum operating temperature of the gear box?

1579


What is the name of the winding to which supply is given?

668


What is the difference between shortcircuit current, rated current of cable & MCB with example? What will be the size of cable required for 5.5 KW motor (Full load current 10 Amps approx.), Starting current with DOL is 120 Amps. Aprrox. Short circuit current with LLLG fault is 2000 Amps Approx.

1559


what is the use of vacuum balancing valve in CEP

1748


What is the difference between acs 550 & acs 850

5349


What is monolithic ic?

592


A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is observed the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?

1707


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

3161