Refrigerant-134a enters a 28-cm diameter pipe steadily at 200 kPa and 20C with a velocity of 6.3 m/s. The refrigerant gains heat as it flows and leaves the pipe at 180 kPa and 40C. Determine(a) the volume flow rate of the refrigerant at the inlet,(b) the mass flow rate of the refrigerant, and(c) the velocity and volume flow rate at the exit.

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.

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

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