Air enters a turbine operating at steady state at 440 K, 20 bar, with a mass flow rate of 6 kg/s, and exits at 290 K, 5 bar. The veloc-ities at the inlet and exit are 18 m/s and 30 m/s, respectively. The air is modeled as an ideal gas, and potential energy effects can be ne-glected. If the power developed is 815 kW. Determine the rate of heat transfer, in kW, for a control volume enclosing the turbine.

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

Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above