Mock Test 11
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Question 1 of 40
1. Question
1.Which one of the following pieces of information will be provided by the installation plan?
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Question 2 of 40
2. Question
2. Which one of the following hot water components should be fixed using flexible connections?
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Question 3 of 40
3. Question
3. To prevent electrolytic corrosion taking place in a system where can the magnesium rod be placed?
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Question 4 of 40
4. Question
4. In a customer’s property, the CWSC supplies both the hot and cold water systems. The minimum size of this cistern is:
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Question 5 of 40
5. Question
5. What is used at a basin outlet to prevent contamination of the water system?
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Question 6 of 40
6. Question
6. What is the primary function of the open vent on a domestic hot water system?
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Question 7 of 40
7. Question
7. To prevent the risk of legionella forming in a dead leg it should be:
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Question 8 of 40
8. Question
8. Identify one advantage of a stored hot water system in a domestic property.
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Question 9 of 40
9. Question
9. Â Where would it state the maximum flow rate and temperature for a particular pumped shower that has been installed?
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Question 10 of 40
10. Question
10. If a system is prone to limescale build ups, this shows:
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Question 11 of 40
11. Question
11. Â Under the Water Regulations, what can category 2 water be described as?
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Question 12 of 40
12. Question
12. Which one of the following pieces of information will be provided by the installation plan?
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Question 13 of 40
13. Question
13. Which one of the following hot water components should be fixed using flexible connections?
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Question 14 of 40
14. Question
14. To prevent electrolytic corrosion taking place in a system, where can the magnesium rod be placed?
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Question 15 of 40
15. Question
15. . In a customer’s property the CWSC supplies both the hot and cold water systems. The minimum size of this cistern is :
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Question 16 of 40
16. Question
16. Which one of the following circumstances should be reported to the water supplier?
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Question 17 of 40
17. Question
17.  A customer has intermittent flow of hot water from their bath tap – what is the most likely cause of the problem?
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Question 18 of 40
18. Question
18. To prevent the risk of legionella forming in a dead leg it should be :
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Question 19 of 40
19. Question
19. Identify one advantage of a stored hot water system in a domestic property.
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Question 20 of 40
20. Question
20. Where would it state the maximum flow rate and temperature for a particular pumped shower that has been installed?
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Question 21 of 40
21. Question
21. In a single feed indirect hot water storage cylinder the water in the primary circuit is prevented from mixing with the water in the cylinder by means of :
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Question 22 of 40
22. Question
22. What is a domestic hot water system where cold water is stored and has a seperate feed and expansion cistern?
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Question 23 of 40
23. Question
23. Which statement refers to a centralised system ?
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Question 24 of 40
24. Question
24. What temperature is hot water stored at ?
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Question 25 of 40
25. Question
25. When stratification occurs what would you expect in a hot water cylinder ?
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Question 26 of 40
26. Question
26. If the total system capacity was 350 Litres how much would the system water expand in Litres when heated to 60°C ?
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Question 27 of 40
27. Question
27. What do Regulations require to be fitted to immersion heaters ?
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Question 28 of 40
28. Question
28. What is the minimum size of the flow and return pipework on solid fuel system ?
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Question 29 of 40
29. Question
29. The function of the primary return pipe is to convey water from the cylinder to the :
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Question 30 of 40
30. Question
30. A component designed to remove air from wet systems without the use of a release key is known as ?
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Question 31 of 40
31. Question
31. What valve needs to be located on the cold feed pipe to the hot water cylinder ?
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Question 32 of 40
32. Question
32. Which of the following is an advantage of an unvented system ?
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Question 33 of 40
33. Question
33. What is fitted to ensure an unvented cylinder does not explode if the pressure relief valve and temperate relief valve fail ?
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Question 34 of 40
34. Question
34. Which building regulation covers hot water ?
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Question 35 of 40
35. Question
35. What is the minimum distance from the CWSC to the shower head for an electric shower ?
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Question 36 of 40
36. Question
36. What must an electric shower have as close as posable to the shower unit ?
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Question 37 of 40
37. Question
37. Which pipe takes the expansion of the water in the hot water cylinder ?
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Question 38 of 40
38. Question
38. Building Regulations for hot water state that the design of the hot water system should :
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Question 39 of 40
39. Question
39. When water turns to steam how much does it expand by ?
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Question 40 of 40
40. Question
40. In a feed and expansion cistern what is the minimum distance that has to be left from the water level to the warning/overflow pipe ?
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