Install sewerage pumpsets

When measuring the different properties of sewage, which of the options below does the term metres head refer to?

• Consistency

• Pressure

• Flow rate

• Size of somebody's bonce

What is meant by design flow in relation to the properties of sewage and pump performance outcomes?

• Velocity of wastewater flow from the pipe outlet above the pump

• Getting into a state of deep concentration when calculating sewer pump sizes

• Peak flow of wastewater into the collection well from all upstream fixtures and ground and rainwater ingress

• Distance that wastewater flows from the pipe outlet above the pump

Which of the following tools or equipment items is not suitable for loading and shifting pump sets?

• Hand trolley

• Hoists and jacks

• Gatic lifter (for manhole covers)

• Forklift

450 kPa =

• 45 M HEAD

• 4.5 M HEAD

• 450 M HEAD

• HEADACHE

Select two WHS requirements that are specific to installing a sewerage pump set in a pump room located in an underground carpark.

• Follow correct manual handling procedures

• Working at heights

• 
• Minimise exposure to any dust and fumes

Select the appropriate piece of equipment for levelling and aligning sewerage pump sets.

• Spirit level

• Boning rods

• String line

• Space Lasers

The minimum size of pump discharge pipes shall be at least ___ and not less than the pump outlet size.

• DN 25

• DN 32

• DN 40

• yay big

Submersible pumps must be installed in a horizontal position when located at the bottom of a wet well.

• YEp

• nAh

Pumps must be installed with connections that are easily accessible to ensure they can be removed and maintained or replaced if they are damaged.

• Truezo

• Falsezo

Total dynamic head (TDH) in a pumping system, is the sum of...

• The vertical lift/height difference

• Friction loss

• Flow

• Additional required running pressure

Answer explanation

TDH = Vertical lift + Friction loss + Required running pressure. Flow is not pressure.