Why are bananas treated with ethylene gas?
A) To kill tarantulas that are often found in bunches of bananas
B) To retard spoilage by killing fungi
C) To retard spoilage by killing bacteria
D) To begin the ripening process
D
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How much does the W-beam shown in Figure 3 weigh per foot?
a. 12 lbs. b. 24 lbs. c. 50 lbs. d. 72 lbs.
A thrust washer is used to control end ____________________.
Fill in the blank(s) with the appropriate word(s).
Type EMT must be supported at least every __________ along the run. (General Rule)
a. 3 feet b. 5 feet c. 10 feet d. 12 feet
What process can be used to balance a crankshaft?
A) Heavy metal is used to increase the weight of the counterweight B) Material is drilled out of the counterweight C) Material is welded onto the counterweight D) Any of these may be used