What is the most important safety precaution when using molten lead?

A. Be sure the piping is warmer than the ambient temperature.
B. Be sure that the ladle, oakum, and joint are dry.
C. Be sure to keep your head and face over the joint.
D. Be sure to wear a hardhat.


Answer: B

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A. Replace the spring pin B. Remove the weight from the spring C. Replace the spring D. Remove and inspect the spring pin

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The _________ ___________ is the valve that controls the amount of airflow into the engine.

Fill in the blank(s) with the appropriate word(s).

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