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

in power station power measuring unit is KW but in transformer is KVA why?

4 7070

what is mean by busbar and what is the difference between busbar,transmissionline,feeder,distribution line

5670

I hv a question regarding power factor improvement just after transformer. I request you to reply me plzz. thank you sir. My friend has a small unit of fabrication. in his factory the main load is a welding machine, lathe machine, grinding machine. this load is not continuous type. now our electricity board has installed 16 KVA, 11000/433 V transformer for our factory. In the energy meter (trivector meter) at LV side of transformer, i hv seen power factor value of 0.15 only when only 3 KW load was flowing. Further electricity board has suggested to install 4 KVAR capacitor at LV side after energy meter. Now my question is that if we permanantly install and switch on 4 KVAR capacitor after energy meter, during some load on transformer and also without any load on transformer, wht will be the power factor shown in energy meter?i dont want to get any penalty by electricity board, so plz suggest me if i can permanantly install and switch on the 4 kvar capacitor or not at LV side of transformer just after energy meter? Thank you again and awaiting for ur positive reply soon.

9 12567

which is osillator is most used in PCB design? why?

3 6392

Diffrectiate between earthing and neutral

TATA,

6 9830

what is the size of A4 size paper?

Bhel,

7 11007

what is the length of a cigratte?

Marlboro,

4 8364

Why converter duty transformer neutrals are not earthed...i am still not sure if this question is also correct...Please email at ranjan120482@gmail.com

2339

how to calculate the bus bar current rating

2 24580

How to decide CT & PT ratings for a given transmission line carrying some rated voltage?

2332

How to decide the rating of CBCT? We have 6.6Kv switchgear & having 50/1 cbct ,i want to know how this 50/1 A came? On what basis we decide CBCT reting?

Cross,

1 8767

What is difference between Step Up Transformer & Booster Transformer? can we used instead of any one?

CS,

2 17563

Difference Between Differential Relay and Restricted Earth Fault Relay of Power Transformers

KSEB,

1 11460

How to calculate sand , cement quantity for 23mm thk brick work(10x10)

5189

what"s the cement, sand, aggregate(consumption) quantity for 10 cm thick roof slab (1:2:4)

2852

Un-Answered Questions { Engineering }

Define hard-driving or over-driving?

1150

I want to know about a good liquid scrubber that we can use in acid washing.

2114

When doing a liquid seal on a differential flow transmitter , most of the time the sealing liquid will be heavier then the process fluid. For wich application will the sealing liquid be lighter than the process fluid if transmitter is mounted below the process line.

1820

Can I calibrate the Electromagnetic Flow Meter on line and How.

1963

Which test will be more severe for VCB?

2654

why we use 3 wire rtd direct wiring for temperature measurement instead of temperature transmitter like bearing temperature

1824

What do you mean by electronics? How is it different from electrical?

1170

What is current divider rule (cdr)?

1341

What year was the keystone power plant in Indiana County constructed?

1157

What is mean by hot and cold loop testing?

1092

checking procedure of capacitor based motors.used in fans etc?

2122

Define emissivity.

1297

Who are the manufacturer for Nitrogen based Fire Protectio/explosion prevention for Oil Filled Transformers? India and international both?

1920

what is submersible pump?what is different between motor and sub motor?

2062

HOE WE CAN IMPROOVE BY USE OF CAPACITOR

1962

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