Answer:
The answer is true.
Explanation:
Most of it is done in computer, but it can also be drawn out by hand.
Answer:
all are zero.
Explanation:
We know that if flow is possible then it will satisfy the below equation

Where u is the velocity of flow in the x-direction ,v is the velocity of flow in the y-direction and w is the velocity of flow in z-direction.
And velocity potential function
given as follows

Rotationality of fluid is given by 



So now putting value in the above equations ,we will find


So
=0
Like this all
all are zero.
That is why velocity potential flow is irroational flow.
Uhm is there a multiple choice?
Air supplied to a pneumatic system is supplied through the C. Actuator
Explanation
Pneumatic systems are like hydraulic systems, it is just that these systems uses compressed air rather than hydraulic fluid. Pneumatic systems are used widely across the industries. these pneumatic systems needs a constant supply of compressed air to operate. This is provided by an air compressor. The compressor sucks in air at a very high rate from the environment and stores it in a pressurized tank. the Air is supplied thereafter with the help of a actuator valve that is a more sophisticated form of a valve.
From the above statement it is clear that Air supplied to a pneumatic system is supplied through the Actuator