The characteristic that determines whether a substance is ferromagnetic or not is called ____.
A. retentivity
B. permeability
C. residuality
D. polarity
Answer: B
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Explain why low-slope roof components (membrane, cover board, insulation, adhesives, and fasteners) must be obtained from the same manufacturer.
What will be an ideal response?
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Motors are selected mainly because of the starting torque required for the motor to perform its function.
Answer the following statement true (T) or false (F)
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The cold anticipator starts the cooling system early to allow the air-conditioning system to get up to capacity when needed.
Answer the following statement true (T) or false (F)
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____ has a higher tensile strength and lower creep than the tin-lead solders.
A. Tin-antimony B. Cadmium-silver C. Cadmium-zinc D. Copper-zinc
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