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Electrical Engineering Interview Questions

What is the type of electrical earthing recommended in hard rock area

5305

what is the major difference between dc generator and synchronous generator?

6428

If we have 630kva step down transformer to operation 3 phase motor 150 kva which size of cable is used? at circuit breaker to 3 phase motor or to electrical board

2292

What happen when switch yard one pole not tripe when you tripping the breaker

4288

What will happen if we give the 3 phase supply to the rotor of slipring induction motor?

3160

why name plate detail HP/KW rating of a motor is different from measured value HP/KW using formula?

3640

Can somebody tell me the type and amp of transformer used to implement 600VA UPS? Thanks in advance.

1897

how to reduce disel generator voltage from 410-60 hz to 380v-60hz

3598

If two generator running parallel, at that condition both ngr Taken in line or taken any one ngr, but why any one or both Ngr in line? Ngr is use for which purpose?

4975

Q2). When 3 dice are simultaneously thrown, which of the following would be obtained? (a) Result 1: “A 5, a 3 and a 6” (b) Result 2:” A 5 three times” (c) Result 3:”A 5 twice and a 3” (d) All three results are equally likely. (Musigma Question)

2428

Does the electricity supply authority send its customers power (kW) or voltape (V)? Asked by Ivan Muliro

2603

the inertia constants of two machines are respectively 30and 42 MJ per MVA.when the change in frequency due to change in load in first machine is 12 Hz,the change in second machine frequency will be?

2466

why do transformer make a sound

4028

differnce between single acting and double acting solenoid valves

948

how to interlock 2 incomer,1 buscoupler MCCB,like we interlock an ACB... pls answer this question and if possible send me the ckt diagram..

12048

Un-Answered Questions { Electrical Engineering }

What is electrical diversity factor in electrical installations?

175

is there any lightning by passer is arranged in ship like buildings?

983

As an electrical engineer what are the responsibilities which i can hold in TCS?

1234

why we not used 11kva as a direct our electrnics component.

1853

Swg formulae

1040

working principle of oil startar

944

147

HI SIR, AM PREPARING FOR RRB FOR SECTION ENGINEER POST. PLZ SEND ME THE PREVIOUS QUESTION PAPERS AND HELP ME. I HAVE NO ENOUGH TIME MY EXAM DATE IS 22ND JUNE.... MY EMAIL ID IS nalla.amarnath@gmail.com

960

What is the formula to calculate the rating of a three phase miniature circuit breaker

1176

In siemens PLC, why do we want to move the data ?

1331

WHY THE RATINGS OF THE TRANSFORMER IS 33KV WHY NOT OTHER???

1460

What does bode plots shows?

160

what is the difference between ups & inverter

4166

how the phase convertor changes the no. of phases

1141

pls,send the previous year written test questions.

982