TMA11 Exam Questions and Answers
Graded A+
Question 01: The statutory requirements of space heating system's controls are
covered under the:
A British Standards
B Construction Regulations
C Building Regulations
D Water Regulations - Correct answer-Your answer, Building Regulations (C), is
correct. The Building Regulations cover central heating, and the 1995 version for
England and Wales has been amended - the new regulations came into force on
the1st April 2002.
Question 02: One disadvantage of using a one pipe heating system is that:
A It is not possible to use thermostatic radiator valves
B The central heating pump must always be on the return
C The pipework to the radiator valve must always be 22 mm
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, D Accurate balancing of the heat emitters is a must - Correct answer-Your answer,
Accurate balancing of the heat emitters is a must (D), is the correct one. Remember
that in this type of system the radiators are fed with water from a single flow pipe
run from the boiler, connecting to the radiators by means of short flow and return
pipes, returning back to the boiler on completion.
Question 03: What is the maximum velocity rate for a circulating pump on a small
bore central heating system?
A 1 m/s
B 1.4 m/s
C 1.6 m/s
D 1.8 m/s - Correct answer-Your answer to this question was 1.4 m/s (B) - which
is incorrect. Review the topic Domestic Circulators found within Module 11. Let
me know if you are having trouble understanding anything. The correct answer is 1
m/s (A).
Question 04: Heat emitted from a radiator is at which of the following proportions?
A 90% radiation - 10% convection
B 10% radiation - 90% conduction
C 10% radiation - 90% convection
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
Graded A+
Question 01: The statutory requirements of space heating system's controls are
covered under the:
A British Standards
B Construction Regulations
C Building Regulations
D Water Regulations - Correct answer-Your answer, Building Regulations (C), is
correct. The Building Regulations cover central heating, and the 1995 version for
England and Wales has been amended - the new regulations came into force on
the1st April 2002.
Question 02: One disadvantage of using a one pipe heating system is that:
A It is not possible to use thermostatic radiator valves
B The central heating pump must always be on the return
C The pipework to the radiator valve must always be 22 mm
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, D Accurate balancing of the heat emitters is a must - Correct answer-Your answer,
Accurate balancing of the heat emitters is a must (D), is the correct one. Remember
that in this type of system the radiators are fed with water from a single flow pipe
run from the boiler, connecting to the radiators by means of short flow and return
pipes, returning back to the boiler on completion.
Question 03: What is the maximum velocity rate for a circulating pump on a small
bore central heating system?
A 1 m/s
B 1.4 m/s
C 1.6 m/s
D 1.8 m/s - Correct answer-Your answer to this question was 1.4 m/s (B) - which
is incorrect. Review the topic Domestic Circulators found within Module 11. Let
me know if you are having trouble understanding anything. The correct answer is 1
m/s (A).
Question 04: Heat emitted from a radiator is at which of the following proportions?
A 90% radiation - 10% convection
B 10% radiation - 90% conduction
C 10% radiation - 90% convection
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
