Engineering Interview Questions

Draw SLD feeding from the SS up to distribution board of the load, calculate cable size, breaker sizes, and meter for the following case: Ground Floor: electric room, pump room, 5 shops, each is 15 KW First Floor: 5 shops, each is 15 KW Second Floor: showroom 30 KW Service Loads: water pump 3 KW (3ph) , fire pump 3 KW (3ph), and one DB service 12 KW (3ph).

HMK,

185

Draw an S.L.D of the main panel for a hospital, showing meter position. Essential loads are: 1) Equipment load 100 KW 2) Critical load 500 KW 3) Life AID Safety load 400 KW 4) NON-Essential load 200 KW 5) Other service loads 200 KW Calculate and suggest the size of the transformer, size of main cable, capacitor bank, and calculate the capacity of an emergency load having above first three mentioned loads is supplied by an emergency generator.

HMK,

154

what are the disadvantages of low power factor

HMK,

130

how can we Increase the Value Of Frequency in electric circuits

HMK,

161

Give accurate definitions for these electric terms: Inductor Inductance Inductive Induction Reactance Reactive Esam Baraka ٢١ ساعة

HMK,

177

how to calculate short circuit current for the busbar

HMK,

165

Which Signal hart communicator work? If there any signal change when hart connect while transmitter in line ?

KOC,

193

What is the difference in painting using Roller and Brush? What is the paint consumption difference? As per IS one coat of painting is painting from left to right and top to bottom whether this can be done using roller ( Roller Stick height and feasibility) ?

158

Why 4-20 amps is being used in instruments? Why cant we use any other range instead of 4-20 amps? Why only 4 amps is taken as lower limit and why 20 amps is taken as the higher limit?

221

What is main purpose of chock coil and starter in florescent tube ?

302

What is difference between radial vibration and axial vibration explain in detail .

159

What is sensitivity in vibration probes..?

241

If a dimension is given as SC parameter, is supplier allowed to use full range of tolerance specified in drawing without proving capability?

173

What is the comparison between 30mA DP RCCB and 100mA DP RCCB and can replace it against 63A MCB

182

how to calculate the weight of concrete

157

i am Ali from Hyderabad,having twice rejected on conference visa(USA),possessing 9 years of teaching experience,my current ielts score is 6 bands and my current age is 34,do suggest me some suitable universities for MBA course in USA,and what are the prospect of getting a visa.

784

what is the electrical?

902

how to find out hard strata in bored pile when the DMC method adopted.

4035

my bachelors was done with EEE now i got admit in NU with CS as course. how to answer this qns 1) why u choose cs? 2) why u changed from eee to cs

475

"11101111" when that bit oriented message transmitting from sender to receiver.how is it calculate parity bit and how is it show bit stream that would be transmitted..by even parity error detection scheme..pls send me an answer..very important,,

798

How to calulate Locked rotor amper(LRA) for compressor type motors?

524

what is temperature compensation?

3589

why we get 2 differnet values for power factor in 2 watt meter method in 3 phase

686

what is basic difference betmeen normal & flame proof motor??

930

Define earth lamp?

953

In electrical what is earth(ground)connection, wht is the importance of it, why it is recomended to maitain below 3VAC between Neutral and earthspecially in PLC used machines?

961

Draw a wheatstone bridge circuit showing supply, meter and 3 wire RTD connection

831

If Polarization index of motor 8.75 at 500volts of medium voltage 4.16 KV motor what this mean winding good or bad pl answer if any reffrence book give me the link

1026

How to test REF relay testing for LV panel as per Kahramaa standard?

1102

What is creepage distance..... what will be the value for different voltage level

797