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Engineering Interview Questions
Questions Answers Views Company eMail

What will happened if the neutral of secondary of Xformer ( Star point) Note it's above KVA rated Xformer

Equate,

1889

Why HT motor is connected in Star?

Equate,

3 7490

In india, according to trade theory above 5 HP motor reqired star delta starter. But we R connect 11 KV motor with 14MW in Direct to line ( With VCB starter combination) Can U Guess, How it is possible ?????

Equate,

2145

what is the least count of auto level staff

14 73091

If we have a 2000kva load,How much kvar capacitors we go to add to improve the power factor at 0.9?pls give the calculation and fully theory?

ABB, Unitech,

2 7423

what is the kva rating of 20 kv transformer?

1 4848

how to cancel cable inductance in power supplies without adding any ckt parallel to cable?

2 5975

WHY RATING OF VCB NOT LESS THAN 630A

2622

Why not connect impeller shaft directly to motor shaft bypassing the stuffing box?What is the purpose stuffing box? Is there any pressure on the stuffing box?

2 5254

What is the Flow rate ?

2 7153

draw IRON-CARBON diagram.

TATA,

3928

draw diagram of automobile,its working function,purpose of differential?

2190

Hi, what is the temp of bus bar.

1 3790

How many types of Differential protection are there? and what the special arrangement are made at the time of charging of a transformer on the Differential protection?

1 2870

Why DC exitation to AC Generator? Why not AC?

Equate,

2 6436


Un-Answered Questions { Engineering }

What is the minimum rating availalbe for weld neck orifice in market?

1982


Why we used 690V in ACS 800 drives.Why dont use standard voltage like 415v or 1.1Kv

2455


In tower foundation, on the time of 3 mtr pit RCC casting if water and mud is their surface of PCC then what will be do?

2515


how to calculate load bearing column

3587


How do i perform grounding of star point of Genset (400V) for making connection with step up transformer of DELTA-DELTA (400V to 20KV) ? while Genset itself has its own neutral and grounding bus bar inside genset breaker box whereas we have another neutral and grounding busbar in synchronizing panel next to genset at maximum distance of 6meter, would someone pls advice if we can only perform neutral grounding in synchronizing panel or should we ground neutral on both places inside genset breaker box and synchronizing panel.

1746


WHAT DLC DESIGN IN CONSTRUCTION

2086


I an doing Engineering in IT(4th year). i want to know what is the scope or .NET and Linux, and which is better for carrier

1832


What is the function of AUTO SHUT OF Valve in Diesel Engine?

1756


What is the de rating factor of cable? What is the importance of the de rating factor in cable select

2387


What are orthotropic materials ?

1162


State some kingpin offset application?

1061


Explain counter sample.

5


what is the difference between directional & non directional earth fault with example please explain.

1852


how can i find cable size from current rating?

1765


Cooling water line sizing ?

1761