A boot in a duct system is a fitting used ____.

A. at the plenum
B. between the trunk duct and the branch duct
C. between the branch duct and the supply register
D. to eliminate vibration between the unit and the duct


Answer: C

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When preparing a steam boiler for wet storage, the boiler is _____.

a. valved off from the remainder of the system b. filled with treated water below its normal water line c. filled with treated water to its normal water line d. valved open to the remainder of the system

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Find the total resistance () of the circuit shown.

Fill in the blank(s) with the appropriate word(s).

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List four possible fan motor mechanical problems.

What will be an ideal response?

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Which task is the MAC layer responsible for in an 802.15.4 device?

A. turning the radio transceiver on and off B. analyzing link quality C. association and disassociation D. selecting a frequency channel for operation

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