Engineering Interview Questions
Questions Answers Views Company eMail

What is the cascade control

245

Discuss the various process operations, clearly stating what is involved in each process operation.

321

Explain the difference between RAM and ROM? What is “Volatile Memory

220




how to rectify the poor signal strength in utrasonic digtial flow meter ,model:ge digital xce868i

KNPC,

185

I meggared my 2c*70 sq mm AL AR XLPE cable. its one end show 50 M ohm . is my cable is safe for laying. I have only one phase and neutral.

381

what is KV and XV valve

356

How the over load setting for HT Motors calculated-provided in Numerical Relay

Damodar Valley Corporation,

351

whether starting current is limited to rated current of motor through soft starting or it exceeds the rated current?

DAE,

348

quantity of material needed for rubble stone masonry for 1:4 and 1:6

380

what is 20 mm dia equivalent reinforcement in column with 25 mm dia 3nos and 32 mm dia 3 nos?

1 438

What is slope...? Explain slope 1 and slope 2...?

337

What are the frequently asked technical questions in chemical engineering during PI?

312

Aptitude, reasoning, quants, verbal and technical question

Pinnacle,

254

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

300

what is the difference between En19 and En24

354







Un-Answered Questions { Engineering }

if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer

794


Hi Suppose we have a wye/wye transformer which is grounded at both sides,in this situation, do we have ay ground transformer? in other words, ground transformer can do any thing more (while we have nuetral wire in both sides)? As the last question, what about 3rd harmonic? we have two choices: first using wye/delta transformer + ground transformer and second using wye/wye earthed connection.in the former choice, we dont have 3rd harmoonic at the secondary side but what about Yn/yn conection? do we suffer from 3rd harmonic in the Yn/yn connection?

736


Pls provide me with the calculation or codes related to de- shuttering of flat slabs

4654


7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?

1067


What is principal work of “O ring”?

4






What is a difference between indoor transformer and outdoor transformer of same rating

2650


How the speedo meter ratio was decided for vehicle?

765


all types of liquid analyzer principle with drawing?

914


What do you know about gail?

1287


What is the difference between CAT 5e communication cable & CAT4 Communication cable

954


Discuss about WAP architecture in detail.

2857


performance test required for a automatic bank teller?

926


What is short cycling in refrigeration system?

1771


please send previous years question papers of JuniorEngineer (ELectronics)in RRB.

919


Is a d.c.compound motor is use as a booster? how?

954