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WorksheetsHot Water 4
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
What type of shower is this?
a)
Instantaneous electric shower
b)
Thermostatic bar mixer type
c)
Gravity fed shower
d)
Bath mixer shower
2.
Identify one advantage of a stored hot water system in a domestic property.
a)
There is a continual supply of hot water
b)
It is cheaper and easier to install
c)
It does not require a secondary source of heat
d)
It is suitable for low water pressure areas
3.
Which one of the following heat sources is regarded as a renewable source of energy?
a)
Coal in a solid fuel boiler
b)
Gas in a condensing boiler
c)
Solar panels on the roof of a property
d)
Electricity supplying an immersion heater
4.
Where would state the maximum flow rate and temperature for a particular pumped shower that has been installed?
a)
BS6700
b)
The Water Regulations
c)
The manufacturer’s instructions
d)
Building Regulations part G.
5.
Under Building Regulations part G, what is a new or replacement immersion heater required to have?
a)
Temperature relief valve
b)
Restricted thermostat to a maximum temperature of 60 degrees
c)
Non-resetting overheat thermostat
d)
Protective coating to avoid electrolytic corrosion
6.
The connection for a secondary circulation system return should be made at what point in the hot water cylinder?
a)
Bottom third of the cylinder
b)
Top third of the cylinder
c)
Middle point of the cylinder
d)
Just prior to the open vent connection
7.
If a system is prone to limescale build ups, this shows
a)
The property is in a soft water area and the temperatures are set too high
b)
The property is in a hard water area and the temperatures are set toohigh
c)
The property has a gravity hot water system that requires upgrading
d)
The water pressure in the system is too high and requires reducing.
8.
If a flow switch on a pumped shower does not work, what would be the result?
a)
The water temperature will remain too high
b)
The pump will not be activated by the electrics
c)
The pump will have restrictive water flow
d)
The water temperature will remain too low
9.
Under the Water Regulations, what can category 2 water be described as?
a)
Wholesome water
b)
Water representing a slight risk to health
c)
Wholesome water with its aesthetic qualities impaired
d)
Water representing a severe risk to health.
10.
What type of hot water storage cylinder is shown
a)
Single feed indirect cylinder
b)
Double feed indirect cylinder
c)
Direct cylinder
d)
Unvented cylinder
11.
A defect in which one of the following components could prevent an electrical supply being provided to a shower pump?
a)
Double check valve
b)
Line strainer
c)
Anti-vibration mounting
d)
Flow switch
12.
In the figure , what component does the symbol represent?
a)
Service Valve
b)
Drain valve
c)
Double check valve
d)
Float operated valve.
13.
What type of hot water system is shown in figure
a)
Indirect system with single feed cylinder
b)
Combination cylinder system.
c)
Direct system
d)
Indirect system with double feed cylinder
14.
What type of shower mixer can limit the water temperature from a shower head (rose) in response to changes in the quantity of hot or cold water supplied to the mixer valve?
a)
Manual mixer valve
b)
Mid position mixer valve.
c)
Twinflow mixer valve.
d)
Thermostatic mixer valve
15.
What is the purpose of undertaking a visual inspection before soundness testing a hot water system? To
a)
chlorinate the system to protect against legionella
b)
check the water flow rate in the system
c)
check the water pressure in the system
d)
confirm that the system is ready for soundness testing
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