Here I post all the questions I solved in the Rolls Royce's web page: 1-Why are turbine blades coated with a ceramic material? A)It makes them lighter B)It helps make them stronger C)It helps to stop them melting- D)It makes them a better colour 2-Why can’t titanium be used to make turbine blades? A)In temperatures over 600ºC where it rubs against other metals, it can burn- B)It is too dense and would be too heavy to use C)It is the wrong colour D)It is too expensive 3-Drag and drop the densities to the correct material: Titanium 6/4: 4.5g/cm3 Nickel alloy 8.2g/cm3 Partially yttrium stabilized zirconia: 5.1g/cm3 Nickel super alloy: 8.4g/cm3 4-What are the two main things engineers must consider when choosing materials to use in an engine? A)Colour and weight B)Cost and colour C)Weight and name D)Cost and weight - 5-Which statement is true? A)To active the same amount of thrust you can either accelerate a Sma...
Excellent as always.
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