Measurement Units and Site Transformers

State the SI unit of measurement for each of the following quantities: a) Mass. b) Force. c) Time.

A site transformer having yellow sockets is used to supply site power tools. a) State the voltage indicated by a yellow plug and socket. b) State the voltage between L1 and Earth in the transformer.

Explain the convection cycle.

Determine, for the circuit in Figure 1, the power dissipated. Show your workings.

Determine the final cost of the materials in Table 1, where VAT at 20% needs to be added. Show your workings.

A garage workshop is to be shown on a 1:50 plan drawing. The actual size of a wall will be 24 m. Calculate, in mm, the length this wall will be represented on the drawing. Show your workings.

State three general areas of confirmation provided by certification issued on completion of a building services project. Answers to include either: To confirm the installed product is safe, suitable, and compliant with regulations or appropriate certifications, for example.

State the purpose of a schematic diagram for a building service system.

Explain how understanding and knowledge of products by a designer can assist a client and provide good customer service prior to installation work. Your answer should include choosing suitable solutions or products to address the needs of the client.

Explain the importance of a client’s body language, when explaining how to set and use a programmer used to control a newly installed system, during handover.