Using the graph above, find the velocity of the air flowing in an 5-inch duct delivering 100 cubic feet per minute.

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


600 feet per minute

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The _____ arch is a flat arch of solider position brick.

A. multicentered B. jack C. semicircular D. Gothic

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Fifteen sections of 2” pipe of the length shown are used to construct a framework. How many standard 21’ lengths of pipe must be bought to do this job?

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The terminals of a motor can be identified using a battery and a(n) _____.

a. voltmeter b. ohmmeter c. ammeter d. continuity tester

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If you know that a battery has become sulfated after a long period of inactivity and you want to save it, which of the following methods would be most likely to succeed?

A. replace the electrolyte with fresh B. high charge for 24 hours C. trickle charge for 2 days D. connect in parallel with a known good battery then fast charge

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