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Engineering Interview Questions
Questions Answers Views Company eMail

SIR I AM GOING TO TAKE PART IN JINDAL ENTRANCE XAME OF 4TH OCT. PLEASE SEND ME SAMPLE QUESTIONS FOR THAT ON MY ID JITENDRA1603@GMAIL.COM

1 3784

what is meant by vector group of a transformer? How can it be derived?

2007

Which pipe is better, ERW or Seamless, when we talk of impact force upto 2700N ?

2 6138

While selecting a diameter of 1 inch which pipe is better, ERW or Seamless ?? OR Out of ERW and Seamless which one gives good results for an impact force of 2700 N??

1 3874

when the direction of a 3phase induction motor is reversed , is there any losses increases?

IOCL,

5 9710

a 3 phase slip ring induction motor is wound for 4 poles on stator and 6 poles on rotor; when 3 phase balanced voltage source at 50 hz is applied to motor it will run at a)1500rpm b)1000rpm c)750 rpm d)zero rpm

Essar, PSPCL, PSTCL,

13 26013

What is the difference between ohmic resistance and effective resistance?

2 13446

Why star point of star connected motor is not grounded? Why alternator is operated at lagging power factor?

TCL,

3 17240

How to design inductive load for 3 phase 440v and maximum 5 amps for star or delta? Can we use a 15kW, 1450rpm motor for 15kW, 960rpm apllication?If yes.how......n.if thesame motor used what`s it`s sideeefect.

2408

Why Boiler Drum level transmitter (TX) or level transmitter rang always put -600 to 0 other -900 to 0. Mines range why use….?

Uttam Sugar,

4 31965

Give me best instrumentation Books name..Ple...

6 12196

i want to held the examination of the bpsc.pl gave the condition &prepare to eam &whose subjet are chose

2538

how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size

Tyco,

2374

how to select automotive wire by mathematical equation with given current, vlotage and resistance

Tyco,

2358

what is lead lag compensator and for wat v using that???

3 13496


Un-Answered Questions { Engineering }

1) Any pipe line working fluid may water / steam on it one manual isolation valve suppose one side of valve 6 kg/ cm^2 pressure (i.e. up stream) and other side is “ 0” kg/ cm^2 pressure(i.e. down stream) . So how much Tourqe required for opening the valve in terms of Newton force wheather normal man can open this valve. (for reference pipe nominal bore is 100 NB )

1878


Mention some of the applications of controlled rectifier?

1080


which type of signal used in instrument?

9850


why 1.7Uo for HV cable Hi pot test?IE standard why?

2475


# What is D-FF? # What is the basic difference between Latches and Flip flops? # What is a multiplexer? # How can you convert an SR Flip-flop to a JK Flip-flop? # How can you convert an JK Flip-flop to a D Flip-flop? # What is Race-around problem? How can you rectify it?

2169


In a synchromesh device, when members G1 and F1 are slid to left and cones M1 and M2 are in contact, a) Direct gear is obtained b) Second gear is obtained c) Third gear is obtained d) Reverse gear is obtained

1283


Are there flow velocity restrictions to avoid static charge build up in pipelines?

1247


Discuss about gear cutting machines.

1219


what is difference between a NPN & PNP sensor?

2439


What is the difference between basic hole and basic shaft ?

1103


What are some common causes of gas pipeline vibration 20 carbon steel line?

1263


cement mortor 1:5 for 30 m2 12 mm tk plastering so how to calcualte its rate

1645


Where barrel pump use?

1863


For a high pressure/ high temperature multistage pump (Boiler Feed Water Pump), what is the average life of mechanical seal? Does life of DE and NDE differ, if differ, how much? Why?

2056


What is the effect of interchanging core(made of steel) and winding(made of copper) material in case of transformer? Give proper explanation in regard to different losses in transformer.

1879