TMA05 Exam Questions and Answers
Graded A+
Question 01: From which of the following would you find the legal requirements
for the installation of cold water services?
A British Standards
B Building Regulations
C Construction Regulations
D Water Regulations - Correct answer-You said Water Regulations (D), which is
the right answer. The Water Regulations, and in particular the Water Regulations
Advisory Service (WRAS) Guide, should be regarded as the "plumber's bible".
Question 02: The measure of the amount of dissolved materials that are in
suspension in water is referred to as:
A Turbidity
B Density
C Potability
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, D Viscosity - Correct answer-Your answer, Turbidity (A), is the correct one.
Upland water has a low turbidity, whereas lowland river water has a high turbidity.
Question 03: The most common use of type 'B' compression fittings is:
A On internal cold water supply pipework
B To isolate float operated valves
C On underground service pipework
D To drain down the CWSC - Correct answer-You said On underground service
pipework (C), which is correct. All underground pipework using compression
fittings must be type'"B" manipulative compression joints.
Question 04: A weir gauge would be used to measure the:
A Water pressure at a tap
B Water flow rate at a tap
C Depth of the CWSC
D Temperature of the water in the CWSC - Correct answer-You said Water flow
rate at a tap (B), which is correct. Alternatively this can be carried out by using a
container with a known capacity e.g. measuring beaker used for cooking, and with
the tap full open timing how long it takes to fill the container
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
Graded A+
Question 01: From which of the following would you find the legal requirements
for the installation of cold water services?
A British Standards
B Building Regulations
C Construction Regulations
D Water Regulations - Correct answer-You said Water Regulations (D), which is
the right answer. The Water Regulations, and in particular the Water Regulations
Advisory Service (WRAS) Guide, should be regarded as the "plumber's bible".
Question 02: The measure of the amount of dissolved materials that are in
suspension in water is referred to as:
A Turbidity
B Density
C Potability
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, D Viscosity - Correct answer-Your answer, Turbidity (A), is the correct one.
Upland water has a low turbidity, whereas lowland river water has a high turbidity.
Question 03: The most common use of type 'B' compression fittings is:
A On internal cold water supply pipework
B To isolate float operated valves
C On underground service pipework
D To drain down the CWSC - Correct answer-You said On underground service
pipework (C), which is correct. All underground pipework using compression
fittings must be type'"B" manipulative compression joints.
Question 04: A weir gauge would be used to measure the:
A Water pressure at a tap
B Water flow rate at a tap
C Depth of the CWSC
D Temperature of the water in the CWSC - Correct answer-You said Water flow
rate at a tap (B), which is correct. Alternatively this can be carried out by using a
container with a known capacity e.g. measuring beaker used for cooking, and with
the tap full open timing how long it takes to fill the container
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
