Mock Test 13
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Question 1 of 40
1. Question
1. In a two pipe central heating system :
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Question 2 of 40
2. Question
2. Which one of the following components allows the customer independent control of the hot water and central heating system?
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Question 3 of 40
3. Question
3. The steps to take prior to temporarily decommissioning a central heating system so that an additional radiator can be installed would include :
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Question 4 of 40
4. Question
4. which one of the following describes the purpose of backgroud heating ?
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Question 5 of 40
5. Question
5. The main objective of installing a central heating system in a property is :
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Question 6 of 40
6. Question
6. Which Building Regulation covers the energy efficiency requirements for central heating systems?
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Question 7 of 40
7. Question
7. The type of copper commonly used in the installation of central heating systems within domestic properties is :
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Question 8 of 40
8. Question
8. Identify one advantage of underfloor heating :
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Question 9 of 40
9. Question
9. What is the main reason a 150mm gap is left between the floor and the bottom of the radiator ?
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Question 10 of 40
10. Question
10. What would be the Delta T temperature between a system with a flow temperature of 600 oC, a return temperature of 400 oC, and an ambient air temperature of 200 oC ?
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Question 11 of 40
11. Question
11. In which of the following situations is it important to insulate central heating pipework?
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Question 12 of 40
12. Question
12. One advantage of installing a fully pumped central heating system is:
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Question 13 of 40
13. Question
13. What is the size of pipe used in micro-bore heating systems
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Question 14 of 40
14. Question
14. A zone valve in an S plan central heating system is designed to :
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Question 15 of 40
15. Question
15. Which central heating system uses a manifold ?
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Question 16 of 40
16. Question
16. Which of the following components could be fitted with a remote sensor?
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Question 17 of 40
17. Question
17. A disadvantage of using a one pipe heating system is that :
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Question 18 of 40
18. Question
18. Which of the following statements relates to a full gravity heating system ?
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Question 19 of 40
19. Question
19. What is a disadvantage of a one pipe system ?
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Question 20 of 40
20. Question
20. Which of the following relates to existing commercial properties ?
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Question 21 of 40
21. Question
21. When the floor plan is grater than 150m² what must be used to control the hot water and central heating circuits ?
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Question 22 of 40
22. Question
22. Which of the following is incorrect in relation to a three-port mid-position valve ?
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Question 23 of 40
23. Question
23. Which of the following statements are true ?
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Question 24 of 40
24. Question
24. What is the cistern called that supply’s the central hearting circuit ?
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Question 25 of 40
25. Question
25. In the cistern that supply’s a central heating system how much expansion do you need to allow for?
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Question 26 of 40
26. Question
26. Once you have allowed for expansion in the F&E cistern how much of an air gap must be maintained from the water level to the vent pipe ?
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Question 27 of 40
27. Question
27. What would be fitted to the incoming supply on the F&E cistern ?
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Question 28 of 40
28. Question
28. What is the maximum surface temperature for a radiator the NHS can have in its hospitals ?
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Question 29 of 40
29. Question
29. Radiators convect heat using the fins on the back of the panel. How much heat is convected and how much is radiated from the radiator ?
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Question 30 of 40
30. Question
30. On a mid position valve the A port would refer to :
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Question 31 of 40
31. Question
31. What is a two port valve also known as ?
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Question 32 of 40
32. Question
32. At what temperature would you expect the cylinder thermostat to be set at ?
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Question 33 of 40
33. Question
33. Filling a fully indirect open vented central heating system would be carried out through :
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Question 34 of 40
34. Question
34. What component would act as a safety device on a sealed system if the expansion vessel failed ?
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Question 35 of 40
35. Question
35. What is a disadvantage of a one pipe system ?
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Question 36 of 40
36. Question
36. A damaged pump on a central heating system has been renewed on a number of occasions. Which one of the following could be a possible cause of the damage ?
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Question 37 of 40
37. Question
37. Which one of the following measures could be taken to prevent unwanted circulation in heating system pipework ?
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Question 38 of 40
38. Question
38. The downstairs radiators in a heating system are failing to warm up, whilst the upstairs radiators and hot water syatem are only lukewarm. What is the most likely fault ?
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Question 39 of 40
39. Question
39. During maintenance procedures, in addition to turning off the electrical supply to any electrically operated components at the consumer unit which one of the following safety actions should be taken ?
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Question 40 of 40
40. Question
40. Wiring diagrams for the heating controls on a fully pumped system can be found in the :
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