What is the difference between hard and soft copper?
What will be an ideal response?
Hard copper is rigid and cannot be formed without cracking or buckling. Soft copper has been annealed and can be formed.
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Explain the concept of:
a. Embodied water b. Embodied energy What will be an ideal response?
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The ____ phase must be that phase having the higher voltage to ground on 3-phase, 4-wire, deltaconnected systems.
A. A B. C C. D D. B
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When seating a bead of a tire, never exceed ________ psi
A) 50 B) 30 C) 40 D) 60
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On a time temperature defrost control, what determines the amount of time before the defrost cycle starts?
A) the outdoor temperature B) the coil pressure drop C) the coil temperature D) the operating time
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