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HPCL Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why two fuses are used in battery charging room?one in positive line and the other in negative line?do any DC system require two fuses?

1 3742

what are the different sizes of U.G. cable & where these cabl;es are used according to voltage ..

1635

can you plz send l&t aptitude questions if available its urgent plz plz plz

1627

yesterday i am using my laptop by plugging power supply also battery was working properly after while i unplugged AC power source ,using my battery i played car game (use much power) after that the battery finished the charge and it closed my PC. after that my battery not charge (when unplug automatically PC will turn off)

1 2055

what is the different between surgearrester and lighting arrester

4 6661

Hello sir, pls send me hpcl technical test papers .i am. Appearing for the exam.

2203

Is RTCC panel needs any control supply.

1465

What shall be the secondary output voltage if the primary winding of a 220/6V, 50 Hz transformer is energized by an 110V, 60 Hz supply?

838

What will be the voltage regulation of a full load and 0.80 power factor lagging load transformer when a two winding single phase transformer has a voltage regulation of 4.5% at full load and unity power factor?

722

When the relative speed between the magnetic fields of stator and rotor does is zero under steady state operation?

710

What is the armature mmf in a D.C machine?

771

What will be the output voltage of a transformer if it is primarily energized from a square wave voltage source?

656

The electromagnetic torque developed is proportional to what in a D.C series motor?

695

Explain the method to keep noises low in a control system?

625

Which motor will you choose which can operate in both lagging as well as leading power factors?

622

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HPCL Electrical Engineering Interview Questions


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