When replacing an accumulator how much refrigerant oil should be added (typical)?

A) About 7 oz.
B) 2 oz.
C) No more than 0.5 oz.
D) None of these


B) 2 oz.

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The floor, ceiling, or roof assembly designed to resist in-plane (shear) forces is the _____.

a. diaphragm b. header c. lateral d. curtain wall

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Shop towels are often dyed red. When they are exposed to battery acid or other acids, they turn black.

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

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Hard spots in a brake drum are caused by ________

A) Machining a drum at too high a speed B) Excessive heat and pressure C) Improper mounting of the drum on the lathe D) Machining a drum without using a rubber belt to damper out the vibrations

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What stops air infiltration between the foundation and the sill plate?

A) Termite shield B) Air filtration system C) Latex sill caulk D) Sill sealer

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