Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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Engineering Interview Questions

Questions Answers Views Company eMail

testing formula for oxygen by ammonium chloride,ammonium hydroxide and copper

992

control wiring purpose,standards, ferrule code standard, interlock, schematic, symbol

1 1884

What is the different between conventional MCC and intelligent MCC? Common controller or controller for each bucket

1011

How much depth we will take in 33kv sub station and why.

1033

MEIL Company written test questions

1002

Electronic circuit

976

What kind of socket shall be provided for window type air conditioner with cooling capacity upto 18000 BTU/hr

1021

The inventer is a battery, but if lost current at home u will turn on the fan but the is AC and inventer battery is dc . Then how the fan was rotating. What device Or machine in fan converst the Dc power to Ac power

1083

How does frequency affect KVA rating of a transformer? If a 500 kva, 500 to 250 v, 60 hz t/f normally used in Canada is to be operated in Europe on 50 hz frequency then how will its KVA rating change? a-increase b-decrease c-remains same

1 1799

How does frequency affect KVA rating of a transformer? If a 500 kva, 500 to 250 v, 60 hz t/f used in Canada is to be operated on 50 hz in Europe frequency then how will its KVA rating change? a-increase b-decrease c-remains same

1 1868

What is the output of below program? #include int main() { int p,q; for(p=1,q=1;p<7;p++) { printf("%d%d__",p,q); } return 0; } Answers- 1. 17__27__37__47__57__67__ 2. 11__21__31__41__51__61__ 3. __11__21__31__41__51__61__ 4. Compilation error

1 1921

What is Phase to Phase clearance for 800V System Operating Voltage as per IEC61439

969

What was asked in isro civil interview

1059

what is relay what is protection & contact multiplying relays where it is used function in brief

1115

What is the typical enclosure type used for Indoor switchgear / Outdoor switchgear Units? - In Onshore / offshore Units?

944

Un-Answered Questions { Engineering }

what is difference between controlnet,devicenet protocol?

2606

What happens when cautenous exposure occurs?

1005

Define liftable weight of a transformer? Does the total weight of transformer include oil weight?

2434

dear sir, pls provide me a previous paper for hpcl engineers trainee exam for mechanical engg. this is a request pls do the needful as early as possible.

1902

why high speed tripping relay will be used in tripping circuit why not normal relay

1294

The ratio of Emissive to absorption power of heat by a body is equal to heat emitted by a perfect black body. Who said the statement

2253

Define load factor?

1058

if u r using bugzilla then it generates automatic bugids,while testing uhave got a bug then bug is represented through a bug id say bug1, then bug is assigned to developer he fixes a bug ,say the bug is fixed no error is got later after few regression cycles u have got the same bug but the bug is represented by diff id say bug2,tell me how do i come to know that it is the same bug that had occured previously but now it is represented by diff id

1908

Why the transformer is mostly used aboard the ship?

1812

where can i get railway junior engineer(mechanical) previous years question papers?

3058

19. Name different types of TRXs which supports different GSM bands 20. ODU LED shows orange – what is the significance?

1841

I WANT TO INSTALL LIGHTING ARRESTOR ABOVE 20 FEET HEIGHT INDUSTRIAL BUILDING. NOW IT WAS 15 FEET HEIGHT HOW MUCH DISTANCE IT WILL COVER & HOW TO CALCULAT THE DISTANCE COVER BY THE ARRESTOR

1906

what is the difference between delta delta and star delta connection transformer? why we use delta delta transformer since it need earthing transformer for grounding?

2036

States some of the commonly used commands in cad software’s?

1165

A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.

1056

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