The maximum tensile stress a material can withstand without irreversibly deforming is known as its _____
a. ductility
b. hardness
c. shear force
d. yield strength
d
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A refrigerator removes 25 kW of heat from a cold space while rejecting 35 kW of heat to the warm space. Determine the power used and the coefficient of performance of the refrigerator.
Given: Q?C = 25 kW; Q?H = ?35 kW What will be an ideal response?
Define a vacuum
A) A vacuum is a negative pressure. B) A vacuum is any pressure less than atmospheric pressure. C) A vacuum is anti-pressure created by counterclockwise molecular rotation. D) Vacuum is the reciprocal of pressure. For every pressure there is a reciprocal vacuum.
Which character of a vehicle's VIN represents the country of origin (manufacture)?
A. the first B. the third C. the eighth D. the tenth
What component is designed to create less flash gas to increase refrigeration efficiency and performance?
A. The condenser B. The evaporator C. The thermostatic expansion valve D. The subcooler