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Engine : Motor Plants and Auxiliary Boilers - 695/947
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When a nozzle tester is used to check the spray pattern of a diesel fuel injection nozzle, which of the following statements is true?
A) The valve should normally begin to open at 1/2 the popping pressure
B) The needle valve spring should always be removed first before testing
C) The needle valve should remain open after the nozzle pops open
D) A serious hazard of blood poisoning exists if the fuel spray penetrates the skin of the operator
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