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IET SPD course

MikeB69
Has anyone done the IET SPD course ? I have completed it now but confused by one answer

When doing the final assessment test I am baffled by question 10 relating to Critical Risk Level, I don't understand how the answer is worked out from the figures they have given and why the answer is (B).

Has anyone done it or can they explain please?


Many thanks
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  • 0
    I assume that (a) is meant to be rural; (b) is suburban; and (c) is urban. Clearly, the equation in 443.5 is to be applied, but beyond that, I too am baffled.
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    I assume that (a) is meant to be rural; (b) is suburban; and (c) is urban. Clearly, the equation in 443.5 is to be applied, but beyond that, I too am baffled.
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