Warning devices should be audible and _____.
a. visible from a distance of 35 feet (11 meters)
b. distinguishable from other sounds on a work site
c. easy for workers to turn off manually
d. equipped with an automatic override
b. distinguishable from other sounds on a work site
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Fungi are tiny nongreen plants that lack _____ and live as parasites on green plants
A) spores B) pigment C) chloroform D) chlorophyll
Technician A says that worn valve stem seals will affect oil consumption. Technician B says that valve stem seals are normally reused during an overhaul. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
Newborn animals have little antibody material in their blood at birth, and without
colostrum they are very susceptible to diseases. A. True B. False
The alternating current frequency supplied by the power companies in the United States is ____________________ hertz.
Fill in the blank(s) with the appropriate word(s).