The flow resistance through the heat exchanger of an oil furnace is frequently increased because of
A) Soot accumulation B) Internal collapse of the heat exchanger
C) Loose heat exchanger cross-baffle members D) Water accumulation
A
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A ____ has a tapered jaw that can be opened and closed single-handedly by pressure action on a side lever.
a. clamp-on accessory b. meter reader c. connecting reader d. clamp meter
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One transfer switch shall be permitted to serve one or more branches or systems in a facility with a maximum demand on the essential electrical system of ____.
A. 100 kVA B. 110 kVA C. 125 kVA D. 150 kVA
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Disc brake design incorporates servo action
Indicate whether the statement is true or false
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Which of these is measured as a percentage?
A) Dwell B) Duty cycle C) Pulse width D) None of these
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