Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How can I calculate the require lumen of a room. If I use Tube Light (40 W), Or 100 W incandescent lamp. Please give detail answer.

3030

WITCH CARDS IN USE IN FIRE CONTROL PANEL.

1502

WE HAVE A LOAD OF 55KW MOTOR ITS VOLTS 380 3PH AND ITS TAKING 100AMPS (ITS FULL LOAD IS 105AMPS)AND ITS CABLE IS 4CX50SQMM ,NOW ITS GETTING ABNORMAL HEATUP IN CABLE,PLZ TELL WHY ITS HEAT-UP?(CABLE LENGTH IS 15 METERS ONLY)

13737

If load current is 70amps or 50amps what range of CT to install for ampere metering

5340

where HT & LT capacitor uses ?

NTPC,

10372

i want to syncronise 5 nos of DG. How? pls reply

4663

I want single line diagram for AMF & DG syncronizing panel

6673

How can i calculate the Breaking capacity of molded case circuit breaker, is the breaking capacity of CB for Diesel generator shall be less than grid supply's breaker ?

1760

I have a 3 phase 600 volt prim. feed and a 120/208 sec. Isolateing tranformer .We are using this system for safety against shock . What is the proper grounding ?? Does the common on sec. get earth ground ???

2867

WHAT IS THE TECHNICAL SPECIFICATION OF C CURVE & D CURVE LEGRAND MAKE MCB

2134

why capacitance effect is predominant in underground cable transmission and inductance effect is predominant in over head line transmission?

3245

why insulation cost is more in underground cable than in overhead line?

2575

how can we calculate fault current of a line in a 6 bus syatem if the faulted line is known?

2936

different aspects of voltage stability

1581

HOW TO CHECK THE VECTOR GROUP OF A TRANSFORMER YD11?

3199

Un-Answered Questions { Electrical Engineering }

1. What is maximum permissible distance between smoke detectors ? 2. How do we decide number of smoke detectors required in a large office, warehouse, hall etc ? 3. What should be maximum height of smoke detectors ? 4. Where do we use heat detector, optical smoke detector, temperature sensitive detector ?

2438

what is the isolation transformer. what is the isolator?

1660

I Just want do EHS Certified Certification Distance Course From Govt approved,so can any body provide me details.

1751

hi I have done 3 yrs diploma in electrical engg after 10+2. I have 16 years of work experience into design proposals sales and engg application development in LV/MV swithcgear and sub station automation field. I want to apply for immigration to new zealand but I am not sure whether I qualify or not since I dont have a degree. Can anyone advice? Thanks Riz

1896

Define demand factor?

714

What is magneto on a gas generator. how it functions. its out put is d.c or a.c. how it can be checked for correct functioning

1465

why d.c produces corrosion

1545

What is the difference between diode and a transistor in terms of the direction of current flow?

1729

What are the uses of stepper motor?

775

what is capacitor voltage transformer?? how it is different from potential transformer?

1731

how to calculate the tarriff for an industry whose kva demand is 10 mva

1565

What is an alternator impedance value?

2453

What is the function of NGR for the parallel operation of alternator? whats happen when different rating of alternator are running with parallel?

2545

How can we calculate ac current from the given DC current when AC voltage is given?

1576

What are the advantages of skewing of cage rotor conductors?

769