Most commonly used flat head screws have a head angle of ________ degrees
A) 82 B) 60 C) 52 D) 72
A
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A grounding wire may be which of the following?
a. Green b. White c. Black d. Blue
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Eight kilograms of saturated liquid water expands until T2 = 200°C while P = const = 800 kPa. The work is nearest:
A) 128 kJ B) 131 kJ C) 157 kJ D) 265 kJ
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In an electrical circuit,resistance is:
A) One coulomb of electrons flowing in one second. B) Opposition to the flow of electricity. C) The ability to make current flow. D) The ability of electricity to do work.
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Mechanical seals are classified by _____
a. size and configuration b. arrangement and design c. operating temperature and configuration d. industry and sector
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