The pressure and temperature at the beginning of compression of a cold air-standard diesel cycle are 100 kpa and 300k, respectively. at the end of the heat addition, the pressure is 7.2 mpa and the temperature is 2250 k. assume constant specific heats evaluated at 300 k. determine the cut-off ratio. there is a +/- 5% tolerance.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.