WorksheetsL2 Plumbing Common Plumbing Processes Knowledge Test
Total questions: 14
Worksheet time: 7mins
Which of the following would be most suitable masonry drill to use to make a hole in brickwork for a brown plug?
5.5mm HSS bit
7.0mm HSS bit
5.5mm SDS bit
7.0mm SDSbit
What is the purpose of the tool shown?
To install a sacraficial anode
To remove an immersion heater
To remove a tap backnut
To tighten a compression nut
Which of the following is the British Standard for the manufacture of copper pipes used in the plumbing and heating industry?
BS EN 806
BS1710
BS1212
BS EN 1057
What is the minimum total length of pipe required to machine bend 15mm copper pipe to 90 degrees ?
60mm
95mm
100mm
115mm
LCS Pipe is given a colour band to indicate its grade. What grade is indicated by a blue band?
Light
Medium
Heavy
Which of the following plastic pipe materials is commonly used for the distribution of underground mains cold water supplies?
Polybutylene
ABS
PVCu
MDPE
Which of the following is not a common size of PVCu soil pipes?
65mm
82mm
110mm
160mm
What is the maximum diameter of hole that can be drilled in a joist?
10% of the depth of joist
20% of the depth of joist
25% of the depth of joist
30% of the depth of joist
When installing 28mm copper pipe in the horizontal plane, what is the recommended clipping distance?
1.8m
2.4m
2.7m
3.0m
Which of the following is the recommended clipping distance for 40mm plastic waste pipe in the vertical position?
0.5m
0.9m
1.2m
2.0m
Calculate the maximum depth of the notch if preparing copper pipes in a joist that is 300mm deep.
35.7mm
37.5mm
43.5mm
40.5mm
What grade of copper tube is most commonly supplied in coils and used for microbore heating installations?
R220
R250
R290
Give one of the statutory regulations relevant to the installation of central heating systems.
Water Supply (Water Fittings) Regulations
Gas Safety (Installation and Use) Regulations
Building Regulations
HASAWA 1974
All of the above
A joint made on copper pipe, which uses an electrically operated tool to compress a fitting incorporating a rubber seal onto the pipe, is known as what?
Push-fit
Press-fit
Compression
Soldered joint
