Interview Questions Answers in Mechanical Engineering

Questions / { gopi krishna }

Questions Answers Category Views Company eMail

Answers / { gopi krishna }

an ice block submurged in the water, if the ice melt level
of water

Answer

Hey frnds!
it's a simple question so many people confused to give the
answer but how ur thinking there is no difference in the
water level. Definitely there is a difference because where
the ice water goes? it will mixed in water so level is
increases.

Is This Answer Correct ?

0 Yes

8 No

Question { BARC, 12601 }

even though LPG is economical than petrol,why we are not
promoting LPG usage?

Answer

we use the petrol because the main reason is to store the lpg we have to use the large tanks so the weight is increases

Is This Answer Correct ?

6 Yes

4 No

Question { 5412 }

what will happen if there is no expansion valve in the air
conditioning system? is there any possiblities of working an
AC system without expansion valve?

Answer

if there is no expansion valve then there is no refrigerating effect. then there is no use of ac i.e., no cooling effect

Is This Answer Correct ?

1 Yes

0 No

Question { Bhel, 4931 }

what is the role of half nut in thread cutting? how can u
cut the thread from 8 TPI to 4 TPI?

Answer

Normally we give the tool feed by means of hand wheel, but
it is not uniform. so we use the half nut. when we engaged
the half nut then the tool will move automatically in
longitudinal direction as per given pitch

Is This Answer Correct ?

5 Yes

0 No

Question { 5923 }

which is more efficient diesel or petrol engine?

Answer

diesel

Is This Answer Correct ?

2 Yes

1 No

Question { RRB, 9918 }

what is the purpose of the nozzle of impulse turbine?

Answer

to increase velocity and decrease the pressure

Is This Answer Correct ?

6 Yes

0 No

Question { 5807 }

define stress

Answer

the resistance offered by the body against the deformation
per unit area

Is This Answer Correct ?

4 Yes

0 No

Question { 6601 }

define strain

Answer

it is the ratio of change in dimension to the original dimension

Is This Answer Correct ?

1 Yes

1 No

Question { 3574 }

difference between the construction of small and big diesel
engine

Answer

complicated

Is This Answer Correct ?

1 Yes

3 No

Question { 13772 }

how many type of welding

Answer

2 TYPES TIG AND MIG

Is This Answer Correct ?

8 Yes

6 No

Question { ONGC, 17990 }

what is materal used for piston in IC engine& why?

Answer

AL because it having less weight compared to CI

Is This Answer Correct ?

29 Yes

8 No

Question { ONGC, 17990 }

what is materal used for piston in IC engine& why?

Answer

al and it's alloys because it is having less weight compared
to cast iron

Is This Answer Correct ?

28 Yes

1 No

Question { 13143 }

Purpose of governer in automobile?

Answer

governor is a device in automobile used to maintain constant
speed at different loads

Is This Answer Correct ?

5 Yes

2 No

Question { BEL, 18970 }

Flywheel size for diesel engine in compare with the petrol
engine.

Answer

Flywheel size of diesel engine should more than the petrol
engine because petrol engine gives smooth combustion where
as ci engine is ruff combustion and also high power so it
requires big size.

Is This Answer Correct ?

34 Yes

17 No

Question { 5978 }

If we Turn a car on its left, which side will have more
pressure? or which side will rise up while turning?

Answer

right side have more pressure and left will move up

Is This Answer Correct ?

3 Yes

0 No