WorksheetsDelano dianostic/formative Assesment
Total questions: 17
Worksheet time: 9mins
What is the purpose of this component in a central heating system
Fills hot water cylinder
Controls water level in cold water storage cistern
Fills combination boiler
Controls water level in feed and expansion cistern
Name this component
BS 1212 part 1 FOV
BS 1212 part 2 FOV
BS 1212 part 3 FOV
BS 1212 part 4 FOV
Name this component
Room thermostat
Programmer
Cylinder thermostat
Remote sensor
What is this component used for?
Filling a low pressure heating system
Filling a high pressure heating system
What would this component be connected to?
Radiator
Hot water cylinder
Expansion vessel
Central heating pump
Identify the thermostatic radiator valve
Which formula can be used to determine flow rates through a pipe?
Q = Av
Q = A÷v
Q = m/s
Q = V2
According to guidance, all pipes and joints of a cold water system should be designed for a service life of:
50 years at a temperature of 25C and a design pressure of 5 bar
50 years at a temperature of 20C and a design pressure of 10 bar
25 years at a temperature of 20C and a design pressure of 15 bar
25 years at a temperature of 25C and a design pressure of 10 bar
What is one important property of water mentioned in the text?
It is a gas
It is a solid
It is a solvent
It is a mineral
At what temperature should the hot water in a hot water cylinder be stored at?
40°C
50°C
60°C
70°C
By how much does water expand when it is heated between 4°C and 99°C?
4%
5%
6%
7%
When carrying out maintenance on an appliance, which document should be followed?
Approved Document Part G
BSEN806
Manufacturer’s instructions
BS8000
Which Building Regulation states that one of these valves must be fitted before the outlet on any new bath fitted?
Part H
Part L
Part G
Part P
Between what temperatures does the bacteria Legionella multiply?
15–35°C
20–25°C
20–45°C
25–35°C
Which Approved Document covers hot water installation temperatures?
Part L
Part H
Part G
Part P
Which British Standard states the capacity of the hot water cylinder based on the number of persons occupying the property?
BSEN12056
BSEN806
BS1010
BS8000
How is a high heat recovery cylinder achieved?
Decrease the coil size
Increase the storage tank
Increase the coil size
Decrease the storage tank
