Answer / raja

2-Stroke
because in 2-stroke - one power stroke obtained for one revelution of the crankshaft.
in 4-stroke - one power stroke obtained for two revelutions of the crankshaft.

Answer / suresh

fuel is burnt more efficiently in 4 stroke, as there is no overlap of strokes.
In 2 stroke, there is overlap of power stroke & exhaust stroke, wherein complete benefit of power stroke is not obtained. There is a little bit of power wastage.
Therefore 4 stroke engine is more efficient.

Answer / arpitakar

Mechanical efficiency is indicated power/break power brake power -frictional power =indicated power in two stories one power stroke for same frictional loss there is two power stroke

Answer / libu

2-Stroke
because in 2-stroke - one power stroke obtained for two revelution of the crankshaft.
in 4-stroke - one power stroke obtained for one revelutions of the crankshaft. 

What is hammering in steam or water flow pipe line. how it is happening.

3 Answers  

---

What are the causes of main engine Turbo Charger blower side dirty?

0 Answers  

---

what is the difference between ball bearing and journal bearings and its applications

4 Answers  

---

difference between strainer and filter

24 Answers  

---

materil used in bearings

4 Answers   National Engineering Industries,

---

How curvature effect is consideed in spring design?

1 Answers  

---

Greetings This question is about hydraulics and I request an expert to answer it. A simple hydraulic machine is made up of two heads, a larger one with a larger force inside a wider pipe and a smaller one with a smaller force inside a smaller pipe in width as in the second picture on this link: http://science.howstuffworks.com/hydraulic1.htm The question is this: what happens if the smaller head and the smaller force doesn’t exist but the smaller pipe is high enough to take all the liquid? For example the larger head is 1.00 sqr metre and can go down 1.00m under a weight of 100.00kg. The cross sectional area of the smaller pipe is 0.001 sqr metre. Now when the larger head goes down 1.00m, how high the liquid from the wider pipe can go into the smaller pipe of the cross sectional area of 0.001 sqr metre? Regards

0 Answers  

---

1.difference between TIG & MIG welding 2.specific speed of turbine?? 3.material of aircraft turbine blade?

5 Answers   ONGC,

---

What are thermal neutrons ?

0 Answers  

---

What for pyranometer is used ?

0 Answers  

---

why mechanical engineering in US universtiy??

0 Answers  

---

Dear sir/madam, plz sand me techanical test question (mechanical)

0 Answers   Micromatic,

---