Fiber optic cables are composed of three sections: the core, the ____, and the sheath.
A. jacket
B. cladding
C. skin
D. center
Answer: B
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When laying out a rectangular-shaped foundation, you know it's square if the diagonals are _____.
a. equal b. longer than the shortest side c. shorter than the shortest side d. unequal
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The process of fish laying eggs is called ____
a. farrowing c. filtration b. spawning d. harvesting
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Specific gravity is used in the HVACR industry:
A) For sizing gas lines. B) For recovering refrigerant. C) For determining system capacity. D) For charging air conditioners.
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This describes a characteristic of a gas lens:gas lens
A) Gas flows in a smooth-flowing solid column. B) The gas swirls around inside the cup. C) Turbulence pulls atmosphere into the column. D) Having 4-5 holes through which the gas is diffused.
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