Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / 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
| Is This Answer Correct ? | 15 Yes | 1 No |
Post New Answer View All Answers
What is the requirement of grounding the neutral of single phase generators on load? If the neutral is not grounded, what will be the effect?
how u select control transformer for a mccb panels or any panels?for expample we hav 440 volts maim supply and control volts is 230v?
Is it possible to protect 3phase overload and earth fault of the 3phase system using two CT's.
how mass curve differs from hydrograph.
In 11/0.414 KV Parralel supply network with Bus tie closed what will be the fault level is it doubled or halved??
Why colled 440V to 3-phase supply.
what is calculation mathod/formaulla for deciding Size of busbar (Copper/ aluminum)for L.T. panel on Various Fault level like 50kA,25kA,10kA
Hi, My plant daily consumption is calculated as 3.8MWH but my supplier has sanctioned an power of 2.6MW per day. how can i equal or distinguish this two factors
why normally Generator rating are between 11Kv to 22Kv?
what is errection pcbs?
I am about to write exam in RRB bangalore for the post of section engineer.please provide me with previous exam questions
whatare the disadvantages occur,if the form factor of transmission will not be equal to 1.11
Why a tesa lamp is glow between two phase?
pls tell me about ups internal connection & we have given only 3 phase supply to ups system how get 4 wire (R Y B N )
How to Decide the Location of Earth pit for Compressor in Oil Depo? and How to measure the resistance of earth pit Pls explain me with the help of Circuit Diagram?
