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Engineering Interview Questions
Questions Answers Views Company eMail

What is the Chemical Formula of Mineral Oil used in Transformer. It is Challenged for all Chemical Engineers.

Ambuja, Oil and Gas Jobs,

6 25848

how i decrease the neutral to ground voltage , thats i read 7v on my digital meter.i dont know about my earth pit.

2 4621

why we are using the 2 slope in differential relay?but in busbar differential we are using only one slope. what is the reason.

1 3955

in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?

1846

can you show me the components inside a air circuit breaker with connection diagram?

1 4073

what is different between runout and concentricity in Gd&T

NRB Bearings, Quantum, Sunder Industries,

7 79174

How the oil level of the Buchholz Relay come down.

3 7834

how to design paver block

CCCL,

1 3796

why CT ratio stand for 50/5, 100/5, 25/5.

ABB, Ramky,

11 68481

hi to all,i done ccna,now im looking job,but it is very diffcult to get job in networking field,.........i dnt know what im doing wrongly,kindly help me and give the proper way...i have so much of interest in this field only

1918

How phase displacement change in the over current relay coils.

2445

what is the syllabus for the rrb sec. eng. posts iam from automobile engg.

RRB,

2529

i had applied for 6 categories for rrb section engineers posts 2 different rrb boards 2 those i was eligible of an single notificatoin. do i need 2 write different exams or single exam

RRB,

2543

why CT output is always raetd 5.regardsof primery curre.

ABB, BARC,

3 7247

what happens if number of poles in stator and rotor windins of slip ring induction motor are not same. Will it rotate near to the synchronus speed defined by stator?

GATE,

1 4945


Un-Answered Questions { Engineering }

Can any one know what are the symbols at the down (below) the analog ammeter??? there are 4 symbols which are they ?????

1921


Which type of key is used between shaft and pulley?

919


Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...

3114


What is power factor why we should maintain the power factor unless what will happen

1927


what is the calculation of selection ofan capacity is 12000m3/hr.

2072


What is heating effect?

2369


what are problems caused by the pdu in rack server

2005


can mini-curcuit supply MIL-tested transformer !

2145


how to calculate stiffners position and size in transformer design

2153


how to calibrate 0- 150 psi presure gauge by dead weght tester

2031


How work the mobail vibrator

1907


Is it possible to implement Restricted Earth Fault protection for a transformer without neutral CT?

4419


what are the preventive maintanance actions taken for air circuit breaker? please answer me

2048


What is 3 element control system

1503


draw diagram of earthings

1997