O&m Engineer - Electrical interview questions

What is HT cable?

Regarding earthing, pf, why transformers are rated in KVA,

How you control stepper motor.

Tell us about switch yard and transmission line.

What is difference between DC and Ac

What if you get a canada degree in india ,would you like to go to canada again for higher studies?

Why vacuume circuit breaker is not used for EHV

How to measure ducting in HVAC.

WHAT IS TRANSVERSE WEIGHT SHIFT DUE TO DRIVE TORQUE?

Give the expression for CMOS switching power dissipation?

What elements of your job do you find most difficult?

What is the Full form of Rccb,MCCB,

What is the formula for converting KW into KWH ?

Which has more losses, AC or DC??

What is protection class current transformer.

What is PIR (pre inserting resistance) in 400kv EHV SF6 BREAKER? Why it use?

What you have learn from your MBA?

How instantanious short circuit current is calculated ? its formula.

In brushless excitation system how generator field current is measure even if the slip rings are absent?

Why current leads the voltage in case of capacitor load?Why voltage leads the current in case of inductive load?Why both are with in phase in case of restive load?

What is the working difference b/w softstarter and Variable frequency drive ?

What is the current flow from telephone when call is made?

Why we use 250 ohm resistor in series with HART protocol communication?

Why Capacitor & ignator used in MH lamp

Capacitor is load free component but why ampare meter shows current when capacitor bank breaker close?

What is difference between single phase and three phase.

Why single phase induction motors are not self staring ? how can we start the 1-phase Induction motor ?

Why 20-20 cricket is more famous?

When voltage gets down the current of motor increases. but according to Ohm's law voltage is directly proportional to current. plz explain

If ELCB and RCCB connected in series,what wiil be the result