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Worksheets6035 Hot Water LO1
Total questions: 13
Worksheet time: 7mins
Which act governs the codes of practice for hot and cold water services?
WRAS
BS6700
BS8000
BS1212
Define: Instantaneous hot water.
Uses a hot water cylinder, which is heated by a boiler and distributes the hot water.
Uses a CWSC, which distributes the hot water via the cold feed pipe.
Uses a combination boiler, which heats water on demand and distributes the hot water.
Identify: Open vented, indirect gravity fed system.
Identify: Direct hot water cylinder via a boiler.
Statement: BS6700 recommend that the capacity of the CWSC should be at least the same capacity as the cylinder.
True
False
To prevent parasitic circulation, how long should the pipe from the cylinder be before the connection to the vent pipe is made?
150mm
200mm
450mm
1000mm
BS6700 states that which valve should be installed on the vent pipe?
Fullway gate valve
Stop valve
Spherical plug valve
No valve
The minimum size in which the primary flow and return pipework can be if a solid fuel boiler is installed?
15mm
22mm
25mm
28mm
The immersion heaters are rated at:
1.5kW
3kW
4.5kW
6kW
The cylinder thermostat is located:
At the base of the cylinder
At the top of the cylinder
One-third of the way up the cylinder
One-quarter from the cylinder's top
Temperature stratification refers to:
The temperature difference between the top and bottom of the cylinder
The temperature difference between the boiler and the cylinder
The temperature difference between the top of the cylinder and the tap outlets
The temperature difference between the bottom of the cylinder and the CWSC
Statement: The installation of an unvented hot water cylinders must be notified to the Competent Persons Scheme.
True
False
The disadvantage to installing a direct cylinder over an indirect or combination unit is?
It is more expensive to install
It lacks head height
You cannot have pumped showers fitted
It is not compliant with Part L
