The pressure less than atmospheric pressure is known as: Suction pressure

Negative gauge pressure

Vacuum pressure

All of the above

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

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

Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.