Ordinance factory JWM 2016 (Mechanical)

 hello guys what is the answer of entropy question in which they asked entropy change for reversble adiabatic system?? 

Water cooling of austenite phase of steel is martensite

One ques to find clearance ratio in Otto cycle

Ratio of Volume of atom to volume of unit cell cube

Why pressure angle is not used above 25deg because it leades to more radial force

Eutectic steels have Lowest melting point

 The coefficient of fluctuation, Cs  of Governor

adding manganese into Iron which increase

Ques on throttling process isenthalpic process

eutectic point in steel have 

machinability of metal increased by 

Refrigerator wale ka data kisi ko yaad hai kya...heap pump ka c.o.p 4 diya tha...or kya dya tha

In transite heat flow dimensionless no. Used are

Mass flow rate of the nozzle is max when we have the sonic velocity at the throat (M=1)

effectiveness of

 heat exchanger

heat transfer through furnace wall

critical radius wala bhi tha ek

when a metal quench from austenite stable temperature to in water

frnds ek sintering ka question tha.. uska last option tha to prevent metal oxide formation.. ye hoga ki nhi.. baki do toh sahi tha.. plz reply

Sun is hoter then earth because the sun emit radiation of much and much smaller wavelength radiation as compare to earth