Why is carbon monoxide production undesirable in furnace operation?
A) Carbon monoxide is an inert substance. B) Carbon monoxide causes furnace inefficiency.
C) Carbon monoxide may block ventilation. D) Carbon monoxide is toxic.
D
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Assume the input ripple to a 7812 regulator is 80mV. What is the output ripple if the ripple rejection ratio is 72 dB
A) 0.2 mV B) 20.1 ?V C) 2.01 ?V D) None of the above
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A tesla is a unit of ________
A) magnetic flux density B) permeability C) reluctance D) magnetomotive force
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You should never mix ventilation strategies
Indicate whether the statement is true or false
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How is heat transfer by convection accomplished?
A. Heat travels by infrared rays. B. Heat travels by radio waves. C. Heat travels through the surrounding air. D. The cooler and warmer objects are touching.
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