What are the assumptions made for air standard cycle analysis? a. The working medium is prefect gas throughout i. e. it follows PV=mRT
b. The working medium does not undergo any chemical change throughout the cycle
c. The compression and expansion processes are reversible adiabatic i. e. there is no loss or gain in entropy.
d. All of above

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise