Flashings for round pipes, such as stack vents for plumbing systems and roof ventilators usually come as flashing ____ made for various roof pitches.
a.collars
b.rings
c.beds
d.insulators
ANS: A
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Technician A says that most commercial hybrid hydraulic vehicles use a diesel engine as the primary power source. Technician B says that most commercial hybrid electric vehicles use a diesel engine as the primary power source. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
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What force is demonstrated in objects with like charges?
A. attraction B. repulsion
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In a combination circuit, the ____ of all individual wattages will equal the total circuit wattage.
A. sum B. difference C. product D. ratio
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U.S. eggs are normally produced under a contract with a:
A. niche farmer B. hobbyist C. breaking plant D. poultry company
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