Answer / bharani

In a two stroke engine, for every two rotations of the crank
shaft there will be one power stroke.Hence during
compression stroke, fuel will be drawn in to the crank case
(suction) and during power stroke, burnt fuel will be thrown
out through transfer ports (exaust).
In a four stroke engine, for every four rotations of the
crank shaft there will be one power stroke.
Here, suction, compression,power & exaust strokes are seperate
as there will be inlet and exaust valves.

Answer / sujay saha ( lecturer of n.h.i

1. Thermodynamic Cycle is completed in 2 revolution of the
crankshaft for 4 stroke engine where as this cycle is
completed in one revolution of the crank shaft for 2 stroke
engine.
2.Turning moment diagram is not so uniformlike 2 stroke
engine for that reason heavier flywheel is required for 4
stroke engine.
3. Volumetric efficiency is more than 2 stroke engine.
4. Thermal efficiency is higher than the 2 stroke engine.

Answer / manjunath

1.in 4stroke the cycle in completed in 4strokes of the
piston..or in 2rev of crank shaft...
a.in 2stroke the cycle is completed in 2strokes of the
piston..or in 1rev of crank shaft...
2.in 4stroke spark ignition..
b.in 2stroke compression ignition...
3.power produced for same size of engine is small...
c.----"---------"----------"------------ is more....
4.4stroke contains valve mechanisms....
d.2stroke---"----- ports ----"-----...
5.lesser wear and tear in 4stroke.......
e.greater -------"----- in 2stroke.....
6. thermal effi is 25%........
f. --------"------ 30-36%.....
7.4stroke works on ooto cycle....
g.2stroke works on diesel cycle......

how hand brake is operated when all the four tyres having disc arrangement

1 Answers  

---

IN AC mechanical fuelpump what stands for AC

6 Answers   Cummins,

---

What is the allowable -ve crankcase pressure (vacuum) in the gas engine of 1.5 mw?

0 Answers  

---

What is an injector pressure in heavy vehicles? Why it is used?

0 Answers  

---

If the tractive effort is the highest for a given velocity, then the vehicle must be in a) Top gear b) Third gear c) Second gear d) First gear

0 Answers   Backbone, Bosch, MAHINDRA, Uniparts Group,

---

I am a diploma Automobile Engineer working in Volkswagen for 4 years . I wish to apply for Australian PR however SOL of austria does not include automobile ngineering is there any other way i can choose to apply for the same. Please help..

0 Answers   Volkswagen,

---

How bhp is measured?

0 Answers  

---

Why not cars which have a wheel type steering, requiring many rotations to be made to turn the car, be replaced with a handle type steering, like the one provided in a autorick shaw for quicker turn?

3 Answers   Ashok Leyland,

---

wat happens if u use petrol in diesel engine

13 Answers   Ashok Leyland, Infosys,

---

The friction plate is always mounted on a) flywheel b) Pressure plate c) Internally splined hub d) Clutch spring

0 Answers   Backbone, Bosch, MAHINDRA, Uniparts Group,

---

Which minerals are used in the manufacture of cars?

0 Answers   GM General Motors,

---

What is the reason for emitting the white exhaust smoke during start of the vehicle? How will you prevent this?

0 Answers  

---