Answer / krishna kanth

smaller vehicles like bikes, cars are started with the help
of motors. initialy, motors turn the crank shafttill
sufficient suction pressure is reached. when sufficient
suction pressure is reached, the engine starts to suck the
fuel in and then the cycle begins when the fuel is taken in
and ignited. similarly, for huge engines, instead of
motors, we use starting air. air at a pressure of 10-30 bar
is fed to the engine which is at rest. this air rotates the
engine till it attains sufficient suction pressure. once
the pressure is reached, the cycle starts and it starts
firing.

Answer / yogesh

in big vehicle we talk petrol engine.
first air and fuel are suck in cylinder and ompressed the piston.

in diesel engine.
first air suck in cylinder and in second stroke inject the fuel by fuel injector.

Answer / ravichandra kumbalavati

Piston moves in the same way. In small vehicals we are using gear system were at rest the driving wheel is not in contact with engine reciprocating system. Only when we made contact between them i.e with the help of Clutch then only the vehicals moves.

Answer / sibu das

we use gear system in a vehicle and when a vehical in nutral
position it goes to free shaft which rotates but wheels are
not moving. So when the vehical are in rest then the
pistones are moved.

Answer / guest

stops

Interview xperience at barc

2 Answers   BARC,

How to calculate the quantity of Grease applying in all bearing?is there any fix formula for this.

2 Answers  

Can someone tell me the related topics or helping books for the hpcl interview questions (for engineer graduates..)

1 Answers   HPCL, Machine India,

bel question

0 Answers  

Sir can u send me few interview questions and answers based on Deputy Superintendent(materials) of APSRTC. I have selected in written.reply to bhanudammoju@gmail.com thank u.

0 Answers  

Why cooling tower of power plant is always in hyperbola shape?

2 Answers  

Why start up vent is fully kept open when boiler is lighted up?

3 Answers   Isgec, Thermax,

How to measure ducting in HVAC.

15 Answers   GMR,

How fuel oil consumed by medium engine?

0 Answers  

How to handle production department ?

0 Answers   Kirloskar,

What do you understand by heat treatment?

0 Answers  

sir I have applied for HPCL management trainee..Can i get previous MECHANICAL ENGINEERING question paper..? stalin

3 Answers   Bhel, HPCL, IOCL, RRB,