Capacitance is present whenever two ____ are separated by an insulator.
A. resistors
B. conductors
C. capacitors
D. magnets
Answer: B
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Being a brittle material, concrete is weak in shear. Therefore, shear reinforcement is used in concrete beams. Sketch the profile of this reinforcement and provide the term by which it is identified.
What will be an ideal response?
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When a ground rod is installed, the top of the rod must be positioned _____.
a. below permanent moisture level if practicable b. 4" above grade c. 6" above grade d. 10" above grade
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A hydraulic retarder will use this moving component to slow a machine down:
a. the planet carrier b. the turbine c. the rotor d. the stator
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At least __________ of free blacks lived in southern cities
A) three-quarters B) one-half C) one-third D) one-quarter
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