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,

235

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,

222

what are the disadvantages of low power factor

HMK,

188

how can we Increase the Value Of Frequency in electric circuits

HMK,

212

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

HMK,

231

how to calculate short circuit current for the busbar

HMK,

222

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

KOC,

245

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) ?

244

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?

273

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

385

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

235

What is sensitivity in vibration probes..?

297

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

227

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

236

how to calculate the weight of concrete

216

How to testing voids of filled aggregate in bitumen mix design

738

what is the defination of Cable database? What are the points are considered while preparing cable database? Is there any sample available for cable database?

779

what is the difference between ups & inverter

3643

Why the output of OP-AMP is always less than Vcc?

818

what is excitation/

867

what is the need to express current and voltage in rms value? rms value is also called as effective value,what is effective value?

826

how to find three phase complex power in per unit and MVA?

933

what might be the problem faced in the near future if the M-sand is used in the place of river sand during wall plastering? (As per IS)

671

do you have some of interview Questions in power and genrator section in general whith answers

895

in power generator normaly voltagr betwween esth to neutral is 0 but my work place generator show the volatge is 60v any body know why? thanks

752

advantage of motor design on higher power factor . normally motors are designed for .8 power factor. what is advantage of designing at .88 power factor

714

How can I weld A234 WPB and WPB P11 fitting? Any special heat treatment required? What happen if I weld both?

259

Hi friends, i m electrical engineer i want a cdr for migration purpose so anybody have information about this then send me on jayesh_ee88@yahoo.com.please try to me

804

What are IP protections used for electrical panels, JB, equipments installed in explosive zones like Petrochemicals, Oil & gas

438

What is the power capacity of nuclear power plant used in nuclear submarrine?

810