The major difference between a petroleum-based grease and a petroleum-based oil is the ____.

A. color
B. viscosity
C. dependability
D. odor


Answer: B

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Used only on precision machine parts, a(n) ____ sealer hardens in the absence of air.

What will be an ideal response?

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How is refrigerant forced from the receiver tank in the heat mode?

A. It is pulled out by suction pressure B. It is forced out by solenoid valve number 2 C. It is forced out by refrigerant that is forced through the bypass check valve D. The receiver tank outlet valve closes forcing refrigerant for the receiver back through the bypass check valve

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When planning a cast-in-place open concrete stairway, treads and risers are laid out on _____

a. the subfloor b. full-size templates c. temporary panels d. graph paper

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Assume L1 = 1 H, L2 = 2 H, C = 0.5 F, R = 1 ? in the circuit shown below. Find the transfer function H(s) = Vo(s)/Vin(s).

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