The following items will test your grasp of the material covered in this lesson. There is only one correct
answer for each item. When you complete the exercise, check your answer with the answer key that
follows. If you answer any item incorrectly, study again that part of the lesson which contains the
Situation: The mission requires an operational M157 Smoke Generator System with trained personnel to
fulfill the mission.
What should be added to fog oil when operating at temperatures below 32 F (0 C) ?
30W motor oil
How long should the purge button be depressed during starting procedures on the M157 Smoke
Three to five seconds
Until the air indicator light comes on
What type of fuel should be used in the M157 Smoke Generator System during operations in
Type 2 automotive combat gasoline
During operations in extreme heat, to what pressure should the fog oil pump pressure relief valve