There are ________ classes of fire extinguishers
A) 8 B) 3 C) 4 D) 6
C
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Match the oil contaminant with the possible source. Some contaminants may come from multiple sources.
A. High humidty conditions B. Roller bearing C. Dust D. Elevated temperature E. Plain bearing F. Pump seal G. Gears H. Shaft
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An aligned section has the cutting plane staggered to pass through offset features of an object.
Answer the following statement true (T) or false (F)
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Which group of soil organisms includes the largest number of autotrophic species?
A) fungi B) actinomycetes C) protozoa D) bacteria E) detritivores
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Isometric drawings are used to great advantage in detailing
A. instruction diagrams B. piping diagrams C. dimensions diagrams D. symbols diagrams
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