Answer:
So the fraction of proeutectoid cementite is 44.3%
Explanation:
Given that
cast iron with 0.35 % wtC and we have to find out fraction of proeutectoid cementite phase when cooled from 1500 C to room temperature.
We know that
Fraction of proeutectoid cementite phase gievn as
Now by putting the values
So the fraction of proeutectoid cementite is 44.3%
Answer:
a) 244,140,625 different ways
b) 390,625 different ways
Explanation:
a) If there are 5 ways to place a chip on each location, and there are 12 locations overall, we have:
5^12 ways of placing them
This would mean a total of 244,140,625 different ways
b) If five chips are of the same type, we can first find how many ways we can place chips on the remaining 7 locations:
5^7 = 78,125
Next we can multiply this by the number of ways the next 5 chips could be the same:
78,125 * 5 = 390,625 different ways
Answer:
We know that all petrol engines are works on Otto cycle.Otto cycle have four process out of four two are constant volume process and others two are isentropic processes.
There are lots of limitations for practical Otto cycle these are as follows
1.In practical cycle heat can not add at constant volume.
2.In practical cycle there is a gap between combustion of two set of fuel.
3.Lots of heat is dissipated by cylinders.
4.Valve opening and closing is not a sudden process it requires some time.
5.There is a limitations of cylinder material ,it means that temperature of cycle can not rise after a specified limit of material.
Due to these above limitations practical cycles have low efficiency as compare to ideal cycle.
Answer:
u/v = S (y²w) / m sinwt + y/h
Explanation:
see attached image
A. Drivers and other employees of motor carrier
