Most R-134a refrigeration systems use ________ oil for lubrication.
A) PAG
B) SAE 30
C) POE
D) Mineral
A) PAG
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Blocker ring clearance can be checked using a ________.
A) Dial indicator B) Dial bore gauge C) Plastigage D) Feeler gauge
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Assess the validity of the following statement, "The South's devotion to states' rights was a major reason for its failure to win the Civil War."
What will be an ideal response?
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In CAD, alternative shapes and sizes can be built into a part, sometimes called ____, and the designer can look at and analyze many "what if" scenarios.
A. analogies B. configurations C. sketches D. synectics
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In the accompanying figure, why must air space be maintained in the tank?
What will be an ideal response?
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