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Worksheetslevel 3 heating
Total questions: 60
Worksheet time: 15hrs 0mins
What heating system uses a difference in the density of water to circulate heat to a hot water cylinder?
Y plan
Gravity fed
S plan+
Hypocaust
The conservation of fuel and energy is covered by which approved document?
Building regulations part P
Building regulations part M
Building regulations part H
Building regulations part L
What is the main purpose of a central heating system?
To heat up the core of the building
To provide thermal comfort to a property
To supply heating to a single room
To provide heat to a number of properties
What is at the highest point of a vented heating system?
Expansion vessel
Feed and expansion cistern
Cold feed isolation valve
Automatic air vent
What is the primary function of the open vent on a central heating system?
To allow the system to pressurise
To allow the system to operate at atmospheric pressure
To provide sufficient oxygen to the heating system
To provide a means of ventilation when filling the system
1. What type of heating system incorporates a three-port valve that gives priority to the hot water system?
Y plan
S plan
S plan+
W plan
1. What three components are required when converting an open vented system with a sealed system?
Automatic air vent, low loss header, filling loop
Filling loop, expansion vessel, pressure gauge
Pressure relief valve, filling loop, expansion vessel
Expansion vessel, automatic air vent, pressure gauge
1. What is the name of the component below?
Mixer bar
Low loss header
Manifold
Filling loop
What is this component?
Blank cap
Bleed valve
Automatic air vent
Expansion vessel
What is this component?
Air separator
Expansion vessel
Automatic air vent
Which type of system would this component be used on?
Sealed
Open vented
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
Identify this component
Pressure relief valve
Radiator valve
Lockshield valve
Automatic air vent
What is this component?
Feed and expansion cistern
Cold water storage cistern
What is the normal capacity of this component?
4 Litres
10 Litres
18 Litres
24 Litres
Which system of control would this item be used with?
C plan
C plan +
S paln
Y plan
Which systems of control could this item be used with?
C plan
C plan +
S plan
Y plan
What is this component used for?
Filling a low pressure heating system
Filling a high pressure heating system
Why does this component need to have a double check valve included?
To protect from contamination by category 2 water
To protect from contamination by category 3 water
To protect from contamination by category 4 water
To protect from contamination by category 5 water
This is an underfloor heating manifold
True
False
What would this component be connected to?
Radiator
Hot water cylinder
Expansion vessel
Central heating pump
Identify the lockshield radiator valve
Identify the thermostatic radiator valve
What is the minimum level of control required to comply with Building Regulation Part L1b?
C plan
C plan +
S plan
W plan
The deposit on the inside of the pipe shown is..........
Black sludge
Iron oxide
The black gunge
Copper oxide
The deposit on the inside of the pipe shown is..........
Black sludge
Iron oxide
The black gunge
Copper oxide
The type of flue shown in the picture is known as..
Natural draught
Conventional flue
Fan assisted flue
Natural draught balanced flue
The water in a central heating system will expand by...........
14%
Not at all
10%
4%
The 'index' circuit is the part of the system which.....
Provides the best flow rates.
Get's the hottest.
Offers the greatest resistance to flow.
Allows the radiators to heat more effectively.
The purpose of fitting a bypass valve is to
Allow water to circulate through the radiators after the motorized valve has closed.
Allow water to circulate between the flow and return from the boiler after the motorized valve has closed.
Allow water to circulate through the cylinder after the motorized valve has closed.
Allow water to circulate through the boiler to balance the system.
This condition shown is known as
Steaming
Venting
Pluming
Cooling
A boiler which is filled off the main water supply but can be connected to either a open vented hot water cylinder or a unvented cylinder is a ...........
Heat only boiler
System boiler
Combination boiler
Balanced flue boiler
The valve is
Anti gravity valve
Cytrol vale
2 Port valve
Auto bypass valve
This type of heat emitter is known as......
Towel rail
Skirting heater
Radiator
Column radiator
This fitting is called........
Anti gravity valve
Cytrol valve
Air seperator
Water seperator
The open vent and cold feed in a fully pumped system should not be installed further than........
100mm apart
125mm apart
150mm apart
175mm apart
Yoou would find the neutral point in a system at....
The boiler
The last tee cylinder return at the boiler
The pump
Where the cold feed enters the central heating system
How high should the open vent pipe on a central heating system extend?
150mm above the water line
250mm above the water line
350mm above the water line
450mm above the water line
If I was using soft fully annealed pipe what grade would it be?
R250
R220
R290
R200
This type of fitting would be on a ......
Small bore only system
Small bore to microbore system
Multi pipe system.
One pipe system.
What fitting is this?
Brass stop end.
Brass 3 way adaptor
Brass 3 port reducer
Brass pipend manifold
A 'heat leak' radiator is used to .......
Remove excess heat from the room.
Allows more heat to come off the radiator.
Remove excess heat from the system to prevent 'venting over'
Remove excess heat from the system to prevent pipework from expanding too much.
A diverter valve system
Gives central heating priority
Gives hot water priority
Gives heating and hot water the same priority
Gives a mixture of central heating ans hot water priority
The type of system a Honeywell 'S' plan is....
3 port mid position valve
3 port diverter valve
2 x 2 port zone valves
3 x 2 port zone valves
The purpose of this is to ....
Allow for the expansion of the system pipework
Allow for the expansion of the water in the system
Allow for the expansion of steam in the system
Allow for the expansion of the air in the system
This valve is a .......
Temperature relief valve
Pressure relief valve
Thermo valve
Automatic air release valve
The purpose of an anti gravity valve is to.........
Prevent the upstairs radiators from cooling down too quickly.
Allow the upstairs radiators to heat up evenly.
Prevent the upstairs radiators from heating up in the summer time due to natural convection.
To prevent the upstairs radiators from getting too hot to touch.
An injector tee would be found where?
Close to the boiler on the primary flow to the cylinder to get better flow rates through the coil.
On the central heating flow to ensure adequate flow of water to each radiator.
Close to the boiler on the central heating return to allow the cylinder gravity return to mix with it.
On the cold feed to the central heating system to ensure the system fills correctly.
Building Regulations Approved Document L1A refers to what?
Energy efficiency for new build properties
Enegry efficiency in older properties.
Energy efficiency for central heating systems.
Energy efficiency in hot water systems.
This type of system is known as a.........
Fully pumped system
Semi gravity system.
Diverter valve system.
Zone valve system.
How would you join more that one boiler together
Two Pumps
High Loss Header
Low Loss header
4" copper pipe
What type of system can generate Heat and power
Combination Boiler
Combined Heat and power system
A Biomass heating system
Heat only boiler
Which one of the following indicates U values through building fabric?
W/m2 per degrees c
W/m3 per degrees c
W x r per degrees c
W + r per degrees c
Which method is used to determine the boiler size when replacing a boiler?
Like for like
Add 30% to existing output
Whole house boiler sizing method
Only D rated boilers
What is the minimum distance in mm of a boiler flue from combustible materials?
50mm
40mm
25mm
35mm
The condensate pipe from a condensing boiler should be laid to a fall in degrees of?
2
5
2.5
10
Which fuel is exempt from some of the key requirements of part L1?
Oil
Propane
Solid Fuel
Natural Gas
The minimum size of earth bonding in mm to bond the main services should be?
6mm
10mm
16mm
4mm
Which building Regulation covers combustion appliances?
Part L
Part J
Part P
Part M
