TMA05 COMPLETE LATEST ACTUAL
EXAM SET WITH QUESTIONS AND
CORRECT/VERIFIED ANSWERS
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 - ANS-✅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
D Viscosity - ANS-✅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 - ANS-✅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 - ANS-✅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
calculating the flow rate per minute in litres per minute. - ANS-✅
Question 05: On a cold water system conforming to the Water Regulations which of the following should
be turned off to isolate the WC float valve?
A Supply stop valve
B Appliance service valve
C Water supplier's stop valve
D Distributing service valve - ANS-✅The correct answer is Appliance service valve (B), as you selected.
To conform to the requirements of the Water Regulations Schedule 2: paragraph 16 (2), inlet pipes to
cisterns including WC cisterns must be fitted with a servicing valve immediately before connection to the
cistern float valve.
Question 06: In areas where the water supply is poor during periods of peak demand what type of
system would usually be specified for a domestic dwelling?
A Direct Cold Water System
B Boosted Cold Water System
EXAM SET WITH QUESTIONS AND
CORRECT/VERIFIED ANSWERS
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 - ANS-✅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
D Viscosity - ANS-✅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 - ANS-✅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 - ANS-✅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
calculating the flow rate per minute in litres per minute. - ANS-✅
Question 05: On a cold water system conforming to the Water Regulations which of the following should
be turned off to isolate the WC float valve?
A Supply stop valve
B Appliance service valve
C Water supplier's stop valve
D Distributing service valve - ANS-✅The correct answer is Appliance service valve (B), as you selected.
To conform to the requirements of the Water Regulations Schedule 2: paragraph 16 (2), inlet pipes to
cisterns including WC cisterns must be fitted with a servicing valve immediately before connection to the
cistern float valve.
Question 06: In areas where the water supply is poor during periods of peak demand what type of
system would usually be specified for a domestic dwelling?
A Direct Cold Water System
B Boosted Cold Water System
