Answer / guest

Low grade fuel means more impurity in the fuel like presence
of lead and sulphur. This could cause early deposition of
sludge,increase viscosity of the sump oil (which reduces
mobility between reciprocating parts ie connecting shaft of
the piston and the main shaft),lower performance like
slowing down of acceleration,decreased mileage(this happens
because the engine automatically compensates for usage of
low quality fuel by consuming more fuel),causes detonation
in engines.
Detonation (generally caused by fuel with a low octane
rating) is the tendency for the fuel to pre-ignite or auto-
ignite in an engine's combustion chamber. This early (before
the spark plug fires) ignition of fuel creates a shock wave
throughout the cylinder as the burning and expanding fuel
air mixture collides with the piston that is still traveling
towards top-dead-center. The resulting knock/ping is the
sound of the pistons slamming against the cylinder walls.
Severe detonation can break pistons and destroy engines.

Give an example of a time when you had to explain some new procedures to your co-workers for quality service delivery. How did you go about it?

0 Answers   Ex-Solite Oilfield and Engineering, Schwing Stetter,

---

What is the differences between CI & SI Engines.

4 Answers  

---

What do you analyze from boiler water analysis?

0 Answers   ABC Inc, RRB, Siemens,

---

What type of metal is used in a propeller

1 Answers   RRB,

---

please send me jindal interview question if any one have?? my id is erabhishekparashar@gmail.com thnx in advance

0 Answers   Jindal,

---

what is meant by cigarcone?

2 Answers  

---

what is basic difference between impulse turbine and reaction turvine

7 Answers  

---

For hot water : please compare to solar heat and heat pump (environment/operation/invest...) Is there any comparison available. Thank you

0 Answers  

---

what will happen if diesel engine make to run with petrol

5 Answers   Hyundai,

---

which parts of boiler are called heating surface?

5 Answers  

---

Explain difference between fissile and fertile materials?

0 Answers  

---

What between defrance of vertical deegry and horigental deegry.

0 Answers  

---