A heat recovery ventilator is more energy efficient than a balanced ventilation system consisting of an exhaust blower and a supply air blower because:
A) It recovers energy from the compressor. B) It recovers energy from the attic.
C) It recovers energy from the exhaust air. D) It recovers energy from the system blower.
C
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Andrew Jackson's military exploits were instrumental in the United States gaining
A. a peaceful and just conclusion to the territorial and settlement conflicts involving the Seminole Indians of Florida. B. possession of Florida from the Spanish. C. joint fishing rights in Labrador, Nova Scotia, and Newfoundland. D. naval limitations on the Great Lakes. E. gaining control of eastern Texas.
Air impact wrenches should be used with ________
A) Dry air B) Chrome sockets C) Either A or B D) Neither A nor B
Digital systems require that voltage levels change between high and low
Indicate whether the statement is true or false
What type of system provides even heat in a residence by circulating hot water to radiators, finned tubes, or convectors?
A. wall-mounted B. hydronic C. baseboard D. zone-control