The type of jack that is operated by the pressure of an enclosed liquid is the _____
a. screw jack
b. ratchet jack
c. hydraulic jack
d. electric jack
c
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The first method of preserving food was probably drying
Indicate whether the statement is true or false
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When charging liquid refrigerant from a single valve supply cylinder, the cylinder is placed ____.
A. upside down B. right side up C. on its side D. in any position indicated
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After the end of the Carolingian line of kings in France, the new royal line was known as the
a. Merovingians. b. Capetians. c. Ottonians. d. Valois.
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Types of pressure vessels commonly used in HVACR include which of the following? (You may select more than one.)
A) Oil storage tank B) Refrigerant cylinder C) Boiler D) Receiver E) Gasoline storage tank F) Accumulator
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