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1. Which way is the force of a liquid exerted?
2. What is potential difference measured in?
3. Which of the following installations offers the least resistance to the flow of water?
4. Which voltage is domestic voltage?
5. When cutting into pipework to add a connection, what type of earth bonding should be put in place to keep the operative safe?
6. What is the SI unit for temperature measurement?
7. An old direct hot water cylinder is attached to a boiler with no pump. How is the heat transferred to the hot water cylinder?
8. What protective device is positioned in the consumer unit and protects the whole circuit?
9. In a hot water system there are components made of dissimilar metals that are connected together. Which one of the components destroys the other due to electrolytic corrosion?
10. What happens to a gas which has a relative density of greater than 1, when left in air?
11. What element must be present to form a ferrous metal?
12. Which of the following metals is not an allow?
13. Which phrase best describes a parallel electrical circuit?
14. Which of the following materials has the best ductility?
15. In a pulley system, how do you work out the required lifting force?
16. What makes a good insulator?
17. Which of the following processes shows sensible heat?
18. In relation to the properties of copper R250/220 refers to ?
19. Strength is measured in three factors, what are these ?
20. What is force measured in ?
21. If a liquid has a relative density more than 1 and it was put in a tub of water it will ?
22. Which type of water makes it hard to form a lather with soap ?
23. What is used in central heating systems to protect the inside and outside of iron pipes ?
24. Which of the following most accurately describes the way in which heat is transferred by radiation?
25. The energy used to heat 1kg of water by 2ºC is 8.372kJ. The specific heat value for water is:
26. Match the following statement with the term – Convection
27. How many classes of leaver are there ?
28. In relation to pulley systems, if you double the wheels and ropes how would the effort be affected?
29. How much does water expand by when it freezes ?
30. What best describes a first class leaver ?
31. Match the property with the statement – Tenacity
32. Match the property with the statement – Ductility
33. How much does 1m³ of water weigh at 4ºc ?
34. How can you tell if a brass fitting is dezincification resistant ?
35. What is the scientific measurement of temperature ?
36. If an object has a mass of 4KG how much does it weigh ?
37. What will increase the effect of electrolytic action ?
38. When talking of gasses which is the true statement?
39. What is SI unit of measurement for electrical resistant?
40. What is relative density?
