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WorksheetsPhase 2 Exam prep 2
Total questions: 20
Worksheet time: 15mins
A discharge branch 6 m in length has a recommended fall of 18 mm/m, What should the vertical drop be at the end of the pipe run?
180 mm
110 mm
418 mm
108 mm
What type of drainage system is shown in the diagram?
A combined system
A partially separate system
A separate system
A partially separate system
What is another term for the offset from the gutter to the downpipe?
Direco-change
Cranked turn
Goose neck
Swan neck
What is the recommended ratio of fall for guttering systems?
1:400
1:60
1:600
1:2000
Which of the following is a downpipe fitting?
Slipper
Boot
Shoe
Belt
An RPZ valve should be installed with:
An isolating valve upstream of the RPZ valve
An isolating valve downstream of the RPZ valve
An isolating valve both upstream and downstream of the RPZ valve
No isolating valves
Which one of the following types of air gap provides suitable backflow protection for the taps in a washbasin installed in a hospital?
AB air gap
AUK 1 air gap
AUK 2 air gap
AUK 3 air gap
Pressure testing of underground service pipework should take place
after approval from the Clerk of Works
After backfilling has been completed
Before backfilling has been completed
After approval from the water supplier
Which of the following types of tap would requires a single check valve to protect against backflow with category 2 water?
High neck pillar tap
Bib-tap
Bi-flow mixer tap
Mixer tap
What type of heating system is shown in the diagram?
Open vented S-Plan system
Sealed S-plan system
Open vented Y-plan system
Sealed Y-plan system
Which one of the following central heating systems uses a manifold?
One-pipe system
Two-pipe system
Microbore system
Gravity pipe system
By which one of the following processes do radiators give out 70% of their heat?
Conduction
Convection
Radiation
Emission
The minimum size for an open vent is...
15 mm
22 mm
28 mm
35 mm
In a central heating system the primary pipework connects the...
Feed cistern and the cylinder
Boiler and cylinder
Cylinder and outlets
Cylinder and radiators
A pump should be positioned so that the system is operating under
No pressure
Equal pressure
Positive pressure
Negative pressure
A district heating system is feeding a number of high-rise flats. Hydraulic separation is required - how is this achieved within each flat?
Heat recovery unit
Ground source heat pump
Heat interface unit
Air source heat pump
WHich of the following is not a statutory source of information?
Building Regulations Part L
Water Supply Regulations
Approved Document Part G
BSEN 806
When a liquid changes state into a gas, it is known as...
Evaporation
Condensing
Sublimation
Expansion
Which of the following equations describes a Joule?
1 kJ/s
1 W/s
1Nm
1W/m
Which one of the following equations is used to calculate the linear expansion within a 10 m length of copper pipe?
3.14×10×30
10×30×0.000016
30÷10×(0.000011)
4.18×30×10
