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WorksheetsPlumbing L2 Hot water
Total questions: 20
Worksheet time: 10mins
What valve should be installed on the outlet of a cold water cistern
What is this tool used for?
Installing an Immersion heater
Cutting holes in plastic cisterns
Fitting taps
Fitting float valves
The regulations that cover Hot water systems are?
The Water Regulations 1999 and Building regulation part H
The Water Regulations 1999 and Building regulation part G
The Water Regulations 1999 and Building regulation part P
The Water Regulations 1999 and Building regulation part B
This picture shows?
A direct cylinder
An Indirect cylinder
A combination Cylinder
A prismatic cylinder
The purpose of this valve is to?
Control the water flow to the cylinder
Prevent hot and cold water mixing in the pipe work
Mix hot and cold water to prevent scalding
Prevent the water in the cylinder from reaching above 65 dc
What is the max temperature of water on a bath in a new build home?
43
60
48
38
An electric shower is a form of?
Direct single point hot water
Indirect single point hot water
Indirect multi point hot water
Direct multi point hot water
This picture shows?
A unvented cylinder
A thermal store
A Direct cylinder
A Indirect cylinder
A hot water cylinder connected to the main water supply is know as a?
Unvented cylinder
Indirect cylinder
Direct cylinder
Boiler
What British standard covers Hot water installation?
BS6700
BS1212 part 2
BSEN806
BSEN6700
The minimum size of storage cistern for a system supplying cold and hot water is?
115 litres
230 litres
80 litres
180 litres
The minimum size of vent pipe is?
15mm
28mm
22mm
The same size as the cold feed pipe
Too prevent one pipe circulation the vent pipe must step across by how many mm.
150mm
300mm
450mm
600mm
What must be fitted to all new immersion heater thermostats?
A thermal cut out
A warning light
A thermostat set to 50
A 13amp plug
What are the disadvantages of a direct cylinder?
Risk of rusty water
Risk of scale build up
Lack of temperature control
Expensive to install
Two cisterns in loft area
Lack of pressure
Lack of CW storage
Pumped showers cannot be fitted
Cheap to install
Suited for flats/chalets
Easy to install
Compliant with part L
This picture shows a?
Immersion heater
Surry flange
Essex flange
Cylinder thermostat
Building regulation part L states that all pipe work within what distance of the cylinder needs to be lagged?
2m
1.5m
1m
450mm
The thermostats on a hot water cylinder should be set at?
48 to 55 degrees C
43 to 70 degrees C
48 to 60 degrees C
60 to 65 degrees C
What should be fitted to all cold water cisterns?
A float operated valve to BS1212 part 1
A float operated valve to BS1212 part 2
A overflow warning light
A float operated valve to BSEN806 part 2
Building regulation part L states that a cylinder must heat in how many minutes?
30
25
60
35
