Answer / ravi

I also need this. Pl. inform the type of test and refer me
the books to study. I am from Electrical Trade

Answer / humayun basha

BHEL Placement Papers | BHEL Interview Procedure |
BHEL Aptitude Questions | BHEL Technical Questions |
BHEL Interview Questions


I attended the BHEL Engineer Trainee written test in
Mechanical stream.

They conducted for four brances in Engineering: Comp sci,
ECE, EEE and
Mechanical.

In Mechanical Branch there were a total of 240 questions.

120- Technical questions in Mechanical Engineering.

120- General Apptitude questions. (Quantitative Aptitude,
Reasoning
Ability, Logical thinking, English usage).


The questions were mainly asked in

Thermodynamics

Engineering Mechanics

Theory of machines

Production tech

If you are thorough with your subject, you can really do
well in this
session.


[One Mark for correct answer, 1/5th for wrong answer. Five
choices were
given]

BHEL Placement Papers | BHEL Interview Procedure |
BHEL Aptitude Questions | BHEL Technical Questions |
BHEL Interview Questions


Some questions which i remember are

1)Unit of Entropy (J/kg K or kJ/kg K)?

2)A mass of 100kg is falling from a height of 1 m and
penetrates the sand
into for 1 m. What is the resistance force given by sand?

3)Ratio of specific heats of air ? (1.41)

4)A body weighs 3 kg in air. If it is submerged in a liquid,
it weighs 2.5
kg. What is the specific gravity of the liquid ?

5)Two cars travell in same direction at 40 km/hr at a
regular distance. A
car comes in a opposite direction in 60km/hr. It meets each
car in a gap
of 8 seconds. What is the distance between them?

6)A simple problem involing in hoops stress. For sphere: M=
[3/2]*p*V*
[density of pressure vessel material/Maximum working stress
it can
tolerate] For Thin walled pressure walls: Hoops stress or
stress in the
radial direction =p*r/2t?

7) A problem in force calculation in a body moving in a
inclined surface?

8)Composition of bronze?

ans. Copper+zinc.

9) Compostion of stainless steel.?

ans. iron+chromium+nickel+carbon.

10) CI is manifactured in which process?

ans. cupola process

11)What percentage of carbon is preset in pig iron?

ans. 4.5 to 6%.

BHEL Placement Papers | BHEL Interview Procedure |
BHEL Aptitude Questions | BHEL Technical Questions |
BHEL Interview Questions



12)Water is available at 10m height. What is the pressure
available?

ans= pressure=density*g*height;
p=1000*9.81*10;
p=98100N/m2.

13)What will happen if the speed of the centrifugal pump
doubles?

14)The unit eV is widely used in ?

ans. Nuclear and atomic physics.

15)What will happen to the resistance, when the diameter of
the conductor
is doubled?

16)The power comsumed by a electrical device is 1000W at
250V, What is the
resistance in the device?

ans.

Power= Voltage*current,
Current=Power/Voltage,
Current,I=1000/250=4
amps. V=IR,
Therefore R=250/4=62.5 ohms.

17)Why DC current is not used in transformer?

18)On what principle the sonar/ radar works?

19)Bending moment diagram for the UDL is in what shape?

20)Function of the distributor in petrol vehicles?

ans. Spark timing.

21)Which is not present in CI engines?

ans. carburrettor.

22)What will happen if one cylinder recieves more amount of
fuel spray
from injectors than other injectors?

23)Purpose of draft tube in hydraulic turbines?

ans. The purpose of a draft tube is toconvert some of the
kinetic energy
of the flow from the runner (the rotating part of the turbine)
intopressure energy and thereby increase the efficiency
ofthe hydro power
turbine.

24)What is the effect or reheater in the gas turbine?

The advantage of reheater is significantly increased thrust;
the
disadvantage is it has very high fuel consumption and
inefficiency.

BHEL Placement Papers | BHEL Interview Procedure |
BHEL Aptitude Questions | BHEL Technical Questions |
BHEL Interview Questions

25)Problems involving with fricition coefficient.

26)Factor of safety = Yeild stress/Working stress.

27)Which is the example of non parallel power transmission
(Universal
coupling)?

28)For perpendicular shafts worm gear is used?

29)A planet gear with 25 teeth is meshed with a sun gear of
100 teeth.
Both are connected using a arm. How many rotations are
needed for planet
gear to complete one rotation around the sun gear?

30)What is equivalent spring constant for spring in parallel?

31) Some questions was asked related to boundary layer and
vortex flow.

32) 5 questions were asked in PERT, Process planning,
Product planning,
Break even analysis.

33)How are tungsten and sintered composite materials are
machined?
(Electro Discharge Machining, EDM)

General Apptitude:


very easy.

There are 120 questions .

English:

** Detect the words with wrong spellings (5 questions).
** Fill in the blanks with appropriate words(5 questions).
** Two reading comprehensions were given(10 questions).
** Find the error in the sentence (8 questions).

Reasoning:

** Seating arrangement problems.
** Find the relation between them.

Quantitative ability:

** 50% of the questions are from basic geometry .
** Remaining were very general and easy. But many questions
are there
that's y you should consider time factor and be quick.


BHEL Placement Papers | BHEL Interview Procedure |
BHEL Aptitude Questions | BHEL Technical Questions |
BHEL Interview Questions


0

Answer / dolly bhivgade

hi, iam Dolly bhivgade,i am also belonging from electricals
please give me some trick to i become my technichal portion
strong & suggeste book.
Thanks....

Answer / karpagaraj.a

i am karpagaraj..i have finished my diploma in electronics
and communication engg...i need supervisor trainee question
for bhel..so [pls send it to me...

Answer / sangeeth

i need bhel all type questions

Dear all i want to know SEWA Electrical Supervisor Licence test Previous Year Questions ? If any body know please send to me zohairaukllah@yahoo.com

0 Answers  

state the working principle of incondenscent tube?

0 Answers  

what is the effect of un-synchronized power.

0 Answers  

why the supply power frequency is 50hz in india? where as it is 60hz in US?

4 Answers  

How is the gain affected by the introduction of feedback in a control system.

0 Answers   GE,

how the 3phase induction motor is running in 2phase supply with help of capacitor?

1 Answers  

hello friends.. I have a doubt regarding the operation of dc machines.. I studied in a text book that a dc machine can be used as a generator and as a motor.. is this possible? If so,please send me the info about this topic.. you can also send your info to my mail.

0 Answers   Bhel, CVL,

I have a relay contact rated at 220v dc which is supplied with a 24vdc from the panel,for it to trip the dampers(24vdc).What if the application of the relay changes so that it should work at its rated 220vdc then will it work at 24vdc supply given or any other consideration needs to be taken .....

0 Answers  

How CT is connected to measure current by changing plug setting , ratio is 300 - 150 / 5 A ?

1 Answers   Ajanta Pharma, Bhel, Cosmo Films, Suzlon,

1) Can anyone give me a typical value for Insulation Resistance of 11kV xlpe cable? 2) How much will the IR value decrease per KM of cable length added?

1 Answers  

what is the ground fault relay,which purpose it will be use,clearly tell me plz

0 Answers  

What is meant by load angle of an alternator? Upon what factors does the load angle depend?

0 Answers   VECL,