At the inlet to the ombustor of a supersonic ramjet(SCRAMjet), the flow Mach number is supersonic. For the fuel-air ratio(by mass) of 0.03 and a combustor exit temperature of 4800 degree R, calculate the inlet Mach number above which the flow will be unchoked. Assume one dimensional frictionless flow with lamda = 1.4, with the heat release per slug of fuel equal to 4.5x10^8 ft-lb. Also calculate change in entropy for the process

Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned

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

Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.