A(n) ____ is made up of a small ball held tightly against a seat by a spring.

A. oxygen regulator
B. safety disc
C. safety release valve
D. torch valve


Answer: C

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Which of the following is the most widely used material for wiring?

a. tin b. copper c. gold d. silver

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Dominant male sugar gliders use the scent glands on _____ to mark members of their group

A) the surfaces of their feet B) the corners of the mouth C) the anal region D) the top of their head

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Rectangular coordinate dimensions may be shown without using dimension lines by using a datum, which is shown as a zero line.

Answer the following statement true (T) or false (F)

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What regulates the flow of chilled water through the cooling coil?

A) An electric fan B) A control valve C) The input temperature D) The condenser

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