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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 7488

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,

2143

what is the least count of auto level staff

14 73068

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 4847

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

2621

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 7148

draw IRON-CARBON diagram.

TATA,

3927

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

2189

Hi, what is the temp of bus bar.

1 3787

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 2864

Why DC exitation to AC Generator? Why not AC?

Equate,

2 6431


Un-Answered Questions { Engineering }

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

1879


How many btu per hour equals 1 ton of air conditioning?

1024


How to convert a binary number into bcd number directly and vice-versa, without converting it into any other number system?

1013


explain the process of commutation in a dc machine. Explain what are inter-poles and why they are required in a dc machine.

1178


explain inflation ,deprication ,time of value & pf tariff

2282


written test: 1) periodical and monthly maintenance are called preventive or panned maintenance. 2) Mechanical seal parts and their material. 3)Urea plant main parts and their construction material details.4)Name diagram of the given turbine5) Turbine nomenclature like API name.6)All types of corrosion like Galvanic and oxide with example.7)Parts of gate valve and its usage. diaphragm gate valve usage. etc.....

2276


Why should chemical equation be balanced?

1053


we need tech specs of HP fan cap 50,000 m3/Hr, Pressure o.5-0.7 Bar for blast furnace at steel plant

1500


1. Describe a time when you anticipated potential problems and developed Preventive measures.

2194


what will be the min curvature ratio for Round Bar dia. 1” size in material grade AISI 4330, Yield strength 115KSI Tensile 140KSI?

2028


How many types of oil using in H/T & L/T Oil Circuit Breakers. need Explenation ?

2911


What are the three tactical elements of electronic warfare?

1217


Why we are use dol starter up to 10 hp

1374


i m going to give an interview for iocl on 5th aug . pls tell me what questions can be answered from metallurgical prospect

2962


What is the principle behind dna fingerprinting?

1147