Pumps & Compressors

Question 1

Total Dynamic Head

Answer 1

Is the sum of the total static head and the dynamic head

Question 2

Shut-Off Head

Answer 2

Centrifugal pump running with the discharge valve shut

Question 3

Dynamic Head

Answer 3

The head required to overcome friction and develop velocity

Question 4

Friction Head

Answer 4

Is the pressure measured in equivalent meters to overcome this friction

Question 5

Static Head

Answer 5

The head of a pumping system without taking into consideration fluid velocity or friction of pipe, valves, fittings. (Pump off, no liquid flowing)

Question 6

Static Discharge Head

Answer 6

Is the distance above the centre line of the pump and the liquid level of an elevated discharge tank

Question 7

Static Suction Lift

Answer 7

Is the distance between the surface of the liquid level of a supply tank below a pump and the centre line of the pump

Question 8

Static Suction Head

Answer 8

The distance between centre line of a pump and the surface of the liquid level in an elevated supply tank

Question 9

Pressure Head

Answer 9

Pressure in the water needed to overcome the vessel pressure