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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

What is the difference between AC Drive and VFD?

ITC Infotech,

10 24242

1. what is difference between VCB and ACB.how its works please explian.

ABB, Accenture, HP, Minda, Mother Dairy, Satyam Pharma,

6 74690

if HT side voltage is high current is low . and LT side voltage is low current is high please explian.

HP,

5 23560

what is electricity.

HP, L&T,

6 8398

what is maximum demand.

HP,

9 25236

if 20 hp motor starts directly delta connection.motor what will be the effect.

HP,

3 6907

if 20 hp motor starts directly stars and contenious run . what will be the effect.

HP, Ohsung Electronics,

11 20977

star delta connection used in reduce the starting current at 3 times . how its reduce the current please explian .

HP,

7 27605

what is on line transformer and off line transformer.

Cisco, HP, ICC,

3 8338

what is electricial and mechnical interlock.

Control Dynamics, EFS, HP,

9 67816

please explian how may types of maintenance works.

HP,

4 9639

what is safety measures of alternator.

HP, MNC,

10 32239

what is main parts of alternator.

HP,

3 15366

what is safety measures of transformers.

Amtek, Hotel Jobs, HP, RMU, SKFM, Taj Group,

16 70165

if AVR fails in alternator. what will be the effect.

HP,

13 28550

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Un-Answered Questions { Electrical Engineering }

for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?

1111

WHAT WOULD BE THE FORMULA OF WIRE GAUGE FOR A FULL LOAD CURRENT

2239

How would your past experience translate into success in this job?

6844

Difference between low impedance and high impedance Restricted Earth Fault

3088

why we use Test Terminal Block in 11 KV and 33 KV electrical panels.

1340

What is VCB? where it is installed at SP. What is SP?

2126

For R-L or R-C ckt,time constant formula is L/R and RC respectively and its unit is in sec.Pls tell me the derivation

3228

A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.

1844

What is the Good Earth resistance value of G.I & Cu. Chemical Earthing & Normal Pipe Earthing?

2285

all details of DG UPS HVAC

2024

i applied for the ap transco please forward the freqventley asked QA

1964

What is open loop and control loop systems?

1091

what is a pilot wiring and whys that called a pilot wiers

1872

importance of reactive power management

1992

Is it advantages of having star-delta vfd than normal star vfd , if yes why?

2210

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