What is the most common cause of puff-back?
A) Delayed ignition because of a blocked combustion chamber
B) Premature ignition caused by higher-than-normal oil pressure
C) Delayed ignition because of a plugged oil filter
D) Premature ignition caused by an excessively high ignition voltage
A
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Why should an acetylene cylinder always be used in the upright position?
A. Acetylene will not ignite B. Liquid acetone will drain through hoses C. Acetylene sits in the top half of the tank D. Pressure gauges will not read properly
Reptiles are cold-blooded vertebrates
Indicate whether the statement is true or false
You should never use both the rip fence and miter gauge at the same time
Indicate whether the statement is true or false.
The relatively small, but perceived substantial, Japanese immigration into California in the early 1900s led to
A. growing Japanese control of certain key industries like banking and horticulture. B. growing employment of Japanese men and women in service industries. C. an appreciation for Japanese arts and culture on the West Coast. D. growing racial discrimination and fear of a yellow peril. E. the increasing belief that Japan was plotting to attack the United States.