| Other Electrical Engineering Interview Questions |
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| Question | Asked @ | Answers |
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| What is the deffirant between EARTH, GROUND AND NUTRAL | | 2 |
| it is clear that volts equal to the current as per ohms law.
is it appliable to the AC power or only for DC. if it is
appliacable to AC in transformers when voltage increases
the voltage decreases ????? why??????????????
| Bhel | 9 |
| If we say that an cable of size 3.5X 50 mm sq. can take
current upto 140 amps,is it the current of single core of
the cable or of all the cores jointly. | | 2 |
| Define working of prim mover governer in alternator?
| | 1 |
| Can we use the 60 HZ transformer/rectifier/Motors/Coils in
50 HZ? if not so, why? | | 2 |
| what are the highly demanded courses for electrical engg.
who finished his b.tech | | 1 |
| difference between celing fan & table fan? | | 4 |
| what is safety measures of transformers. | HP | 1 |
| IN HT MOTOR HT REFERS TO HIGH TENSION OR HIGH TRANSMISSION? | | 4 |
| why dc power can not be used in transformer? | | 6 |
| why the transformer secondary voltage is more than the load
end voltage like t/f 11KV/433V for 415V(terminal voltage) | | 1 |
| what is the use of starter in tube light?and what it
contains
| | 1 |
| what is the difference between diode and zener diode? | | 3 |
| where we use zero sequence current transformer or core
balancing ct. | | 1 |
| some practicle study shows that the reactive power at the
receiving end is not equal to the reactive power at the
sending end.But according to theory the reactive power is
exchanged by different parts of the network – capacitors
and reactors permanently, but is never consumed or produced.
Then Where that reacrtive power loss occuring?is there any
formula to calculate reactive power loss? | | 1 |
| Based on CPI/CGPA they shortlist the candidates & than
directly start Interview so there is no Written Exam or GD
Only PI.Interview held @ MNNIT , ALLAHABAD On-Campus on
6th,Aug, 2007 & the Questions asked to me by Interview Board
( 4 People) are from HR/SummerTraining/BTP/Subject-core,
POWER SYSTEM & MACHINE. time duration of I/V is about 15-20
Minutes.
HR-
Q.1 Name,hobbies & About family background ?
Q2.What u know abt NTPC ??
Q3.Why u want to choose NTPC as ur Carrier's starting i.e
power sector not any other Oragnisation or sector ??
Techincal Questions-
Q1.What is the reason for transformer Noise ??
Q2.Which material is used for making Transformer oil & How u
measure its dielectric strength & Name the test ?
Q.3 Which Machine u will prefer 2 use if flammble gases are
coming out at a place & why ??
Q4.What is relation b/w Transmission Lines & Communication
Lines ?
Q5.What is the maximum capacity Synchronus Machine & total
powerGeneration in our country ?
Q.6 In india Power generation is at 50Hz while in America
its 60 hz ,why so ?? Advantage or disadvantage ??
Q.7 Maximum Generation Voltage in india ?
Q8. What is the Voltage regulation & why its required n how
much is permissible ? & causes of voltage variation ??
Q.9 Why electric shock is feel ?? n in a Electric Train why
we didnt feel that ?
Q.10 Have u seen/ experience of any power plant/ industry
related to the power sector ?
so these are the questions which not too diffcult i
think was asked to me.
| NTPC | 1 |
| If the capacitor bank is installed in switchyard say
132/22kv then on LT side say 22kv/0.433kv is it necessary to
install capacitor bank for maintaining power factor. if pf
is maintained on HT side then will that be maintained on LT
side as well.if not then how&why??????/ please
explain........... | MacLellan | 3 |
| Shall we get electrical shock if we touch the positive
terminal of a 230 volt dc supply? | | 4 |
| WHAT IS THE MEANING OF KEY SINGLE LINE DIAGRAM? | Technip | 2 |
| Wht ar the reason for low voltage on consumer side? | | 3 |
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