A C-D nozzle is supplied from an air reservoir at 1000 kPa. It has an area ratio of (Aexit/Athroat) 4. Calculate: a. The range of back pressures over which there is subsonic flow in the diverging section of the nozzle (10 points) b. The range of back pressures when the flow is at the designed supersonic Mach number at exit of the nozzle (10 points)

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

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

Condition monitoring is a major component of. (clo4) a)- predictive maintenance. b)-preventive maintenance c)-proactive maintenance d)-reactive maintenance.