Engineering Interview Questions
Questions Answers Views Company eMail

What is difference between PLC and SCADA

Vimal Fire Controls, Uflex,

13 56664

What will happen if i connect two 3-phase tranformers secondary supply on one bus bar that is R-Y-B-N?

GMR,

2 2030

WHY IN THREE PHASE CABLE 440V CURRENT FLOWS IF IN ONE PHASE 230V CURRENT FLOWS ???

3 5627




How Can we calculate current carrieng capacity of Copper Bus-Bars and Alluminium Bus-bar

2 4992

difference between load bus and dead bus?

4 18844

can i get Mahagenco sample question paper?

660

How to define the size of control valve?

5 4836

Why only sinusoidal ac voltages are generated?why not triangular or sawtooth?

677

can a deareator be placed at any height with care that suction (NPSH) for feed pump is satisfied

Sail,

590

Are mechanical seals in pumps direction specified?

Sail,

4 3544

what is FACTS & where i can material regarding to facts.

2 2620

how to mention 5mw generator in kva ? gen voltage is 11kv

6 5619

i have design dc-dc 3-way isolator circuit,how to test psrr,response time,limit frequency

610

What are the things needed to finish interview successfully from the perspective of interviewee ?

NTPC,

5 3609

what is meant by reactive power ,active power & real power ? thank you

2 3705









Un-Answered Questions { Engineering }

How many Rod required for 58 feet by 24 feet roof slab which is supported by 5 * 3 = 15 Column. Six Stored building Roof Slab = ? Ton 15 Column = ? Ton Slab Beam = ? Ton

725


How will you justify IR value and Charging voltage of any motor,transformer and Cables.......???? . . . . . . . . Plz tell me any body Baljeet Singh, engineer_89@refiff.com

597


Formula of mid span bar

554


Write down the brushes of a de machine.

583


How will I MOve Comp-1 variable into next variable without using Move statement?

865






in indoor type circuit breakers why only the corner breaker trips specially during cold season. What is the reason.

588


my UPS suddenly goes off and all panel light also blow off.This happens even main electric supply is not interrupted.After some time it automatically starts functioning normally.Batteries are new.

676


PLZ EXPLAIN THE INTERLOCKING AND CONTROLLING OF CONTACTORS????HOW CAN I DO THAT?

3149


What are the various types of BUSBAR Schemes? explain each

3210


why the projects getting loss?

526


What is the difference between DI pipes, Cast Iron pipes, LA Pipes, SW pipes, SWR Pipes, RCC hume pipe, RCC spun pipe ? What are their IS codes and applications ?

5063


What is the different types of cable & current capacity of cable

611


What happen if we install flow meter with orifice plate, but bevel position is in upstream and not in downstream

121


What is the restart inhabit setting in ABB spam150c relay (Motor protection relay)

1504


Dear sir, I have applied section engineer post at rrb Chennai.Please send me the previous technical question papers and answers

626