Engineering Interview Questions
Questions Answers Views Company eMail

What is the difference in Cement content for M-20 Concrete if y ou use OPC & PPC? What is the difference in the Curing Period?

2 4295

what is SPLICES & where it is used?????????????

3 3782

Explain mechanism of fatigue failure.

728




What does Magnetic Neutral Axis

Genus, Lanco, Eskom,

2 11869

what is mathematical relation between ac to dc current how will convert Iac=50amp to Idc

7 18116

why we use 4-20 mA for calibration of the instruments.why we cant use 0-20 mA?

4 6080

why output is out of phase in case of common emitter?

608

What is mean by vector group? For what purposes we doing vector group test in transformers?

2 3455

whow we find out dc motor field aur armature resistance

1 1979

how to make aeroplane?

TATA,

1 3461

how many types erthig

6 3227

What is the substitute of Mastic Asphalt?

MPSC,

2 4030

why oil lift in screw chiller during change of climate.

Daikin,

724

why we do not megger to motor under system is very high vaccum condition. and what is the tempreture of vaccum conditon

Daikin,

516

How much KVAr bank reqired for 630 KVA transformer on full load for maintain power factor upto.99

DLF, Dhanalakshmi Industries,

4 7652







Un-Answered Questions { Engineering }

suri transmission

2470


what its mean 'inverter based technology' ? if we talk about refrigerators, splits ACs etc how it helps to produce & keep more coolness and chilled atmosphere ?

548


Can the output voltage of a rectifier be greater than the input AC voltage without the use of any voltage multiplier in the circuit??please provide the explanation too..

583


How To Servers For Malitnationl Bank?

441


For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?

439


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?

619


In VVVF DRIVES VOLTAGE IS ALSO VARY WITH THE FREQUENCY. HOW? WHAT IS THE DIRECT FORMULA RELATING THESE TWO.

903


Need help in designing a degasser tower for 2m3/hr DM plant, also send me the formulae used

2407


What is Difference between Bench Set & Operating Range of Control Valve?

2006


how can see the ac indoor or out door ac which Tr

511


what happens when dc generator coupled with cycle shaft.also explain what happens when its loaded

628


what heppend if we are connected u1-v1-w1 as a star point in the place of u2-v2-w2 in power genration

671


I want previous rrb enteranse exam papers in section engineer. please send that papers to my id rohit_nist@yahoo.co.in

1231


What is EMUA? What is its function?

2618


how much repeitation for conventional and maivan formwork?

136