What is the most common cause of puff-back?
A) Delayed ignition because of a blocked combustion chamber
B) Premature ignition caused by an excessively high ignition voltage
C) Premature ignition caused by higher-than-normal oil pressure
D) Delayed ignition because of a plugged oil filter
A
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List and briefly explain OSHA's voluntary protection programs
What will be an ideal response?
One BTU is equal to _________________ calories
A) 100 B) 212 C) 252 D) 32
When aligning a coupling, the first thing to do is to:
A. Eyeball the initial placement of both units. B. Shim up the driver unit. C. Shim up the driven unit. D. Make sure the base and bottom of each unit are clean and smooth.
For whom should fire fighters consider that they work?
a. their team b. their supervisors c. the tax-paying citizens d. themselves