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WorksheetsAP L3 Phase 2 mock
Total questions: 45
Worksheet time: 25mins
The gradient a gutter system should fall to is
600:1
1:60
1:600
1:6000
Calculate the expansion of a plastic gutter system which is 9m long and goes through a 25 deg temperature rise.
The coefficient of plastic is 0.00018
40.5mm
405.0mm
.405mm
0.45mm
The maximum distance permitted between fascia brackets is
1mm
.1m
1.1m
1m
The building regulation that cover rain water is?
Part H 3
Part G 2
Part F 3
Part A 2
The clipping distance for a 68 mm down pipe is?
1.5 m Vertical and 1.2 m horizontal
2.0 m Vertical and 1.2 m horizontal
1.2 m Vertical and 2.0 m horizontal
1.2 m Vertical and 0.6 m horizontal
What is the maximum length of a WC branch?
2m
4m
6m
8m
Bends at the base of discharge stacks should be large-radius with a minimum radius of _____?
150mm
200mm
265mm
380mm
After a performance test, the depth of water that should be retained in the trap to a washbasin is?
25mm
35mm
45mm
50mm
The gradient for a bath waste should be between?
18 - 90
18 - 22
18
18 - 75
No connection are allowed to be made opposite a WC connection within how many mm?
150
200
250
300
What British standard covers central heating systems?
BSEN 806
BSEN 12828
BSEN 4422
BSEN6700
Heating systems are designed to reach temperature even when the outside temperature drops below?
0
-1
-5
-10
A property above how many m2 should have more than 1 zone?
100
150
200
250
A central heating boiler that heats water instantaneously is know as a?
System boilers
Conventional boilers
Combi boiler
Traditional Boiler
The three-port mid-position valve controls the flow of water to the hot water cylinder and heating circuit in what type of system?
S plan
Y plan
C plan
S plan plus
What is the minimum size of a vent pipe on a central heating system?
15 mm
22 mm
28 mm
The same size as the feed pipe.
The cold feed from an F and E tanks must?
Be 22 mm and fitted with a gate valve a close to the exit as possible.
Be 15 mm and not contain any service or isolation valves
Be 15 mm and fitted with a gate valve a close to the exit as possible.
Be 22 mm and rise slightly away from the tank.
In a fully pumped system, the height of the open vent should be a minimum of?
150mm + 20mm per metre of head
450mm
150mm
No more than 250mm
In order to prevent corrosion and scale build-up in a central heating system, what can be added during initial filling
Vinegar
An inhibitor
Anti-freeze
Descaling solution
What can be incorporated in a heating system to remove magnetite
Scale reducer
Magnetic filters
Water softener
Electrolyte
What is the minimum distance required between the floor and the bottom of a radiator
Recommended to be no less than 100mm
Recommended to be no less than 150mm
Recommended to be no less than 200mm
Recommended to be no less than 250mm
The radiator the heats up last is know as the?
Key radiator
Index radiator
End radiator
Guide radiator
What building regulation approved document covers hot water safety and water efficiently
G
F
H
A
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
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
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
At what height should a thermostat be fitted on a cylinder?
1/3 from the top
1/3 from the bottom
1/2 way up
In the middle
A cold water system were all the outlets are from the mains is know as?
Direct
Indirect
Basic
One pipe
A cold water system were most of the outlets are from a cold water cistern is know as?
Direct
Indirect
Basic
One pipe
Fluid category 1 represents:
A serious health risk
A significant health risk
A slight health risk
No health risk
What air gap is required for a wash hand basin
AUK 2 air gap
AUK 3 air gap
AG air gap
AUK 1 air gap
The water regulations state that a mixer tap that allows the hot and cold water to mix in the body of the tap with unbalanced pressures must have
Double check valve on both hot and cold supplies
Single check valve on both hot and cold supplies
AUK 2 air gap
AUK 3 air gap
Float valves should comply with?
BS1010
BS2121
BS1212
BS5154
Water has a relative density of?
0.5
1
1.5
2
0 Celsius is equal to?
-273 Kelvin
-327 Kelvin
-27 Kelvin
273 Kelvin
When water turns to steam it expands by?
10%
1600 times
4
4%
When water is heated it expands by?
10%
1600 times
4
4%
The maximum density of water is?
10
1600
4
0
Given that all holes have the same diameter, the water pressure is greatest at hole
A
B
C
D
1. Atmospheric pressure at sea level is:
303.1Pa
201.3Pa
101.3Pa
111.3Pa
What is the UK standard domestic voltage?
230V
110V
415V
24V
50 metres head is equal too?
5 bar
0.5 bar
1 bar
50 bar
