1. List the five Work Health and Safety (WHS) and Occupational Health and Safety (OHS) requirements relating to inspecting and servicing cooling systems, including procedures for working with: hot pressurised cooling systems, rotating fans, belts and pulleys and coolant additives. 2. What are the five environmental requirements for trapping, storing and disposing of fluids released from cooling systems? 3A. What does a hydrometer measure? 3B. List the six steps for using a hydrometer to test the freeze point. 4A. How does a refractometer work to measure specific gravity? 4B. List the five steps for using a refractometer to measure freeze point: 5A. What two methods are used to measure coolant pH? 5B. List the four steps to test coolant pH: 6. Explain the effects of the following conditions and the components that they can affect: A. Corrosion B. Cavitation C. Electrolysis 7A. How is a transient voltage test carried out? 7B. What should the reading be below to be acceptable? 7C. What can be done to verify that electricity is finding its way into the cooling system? 8A. Why is using a pressure tester a more effective way to find risks? 8B. If the coolant is leaking internally into the engine what appearance could the oil or spark plugs have? 8C. List the four steps to pressure test a cooling system for leaks: 9A. What is a combustion leak test designed to do? 9B. Which three signs indicate the need to do the test? 9C. List the three steps to carry out a combustion leak test: 10A. What customer complaint would need the inspection and testing of fans and fan shrouds? 10B. List the eleven steps necessary to inspect the shroud/air dam and test the electric cooling fan