The function of the door interlock switch is to permit the unit to operate only when ____.
a. the AGV is energized
b. the furnace door is closed
c. power is applied
d. the unit is in the heating cycle
b. the furnace door is closed
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Boilers and furnaces which condense flue gas in second heat exchangers generally have annual efficiencies in what range?
A) 85% to 89.5% B) 95% to 99.5% C) 92% to 98.5% D) 90% to 95.5%
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Anemia is a condition associated with iron deficiency
Indicate whether the statement is true or false
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Even with increased leisure time activity for the American public, employment opportunities offered by state and federal governments are not expected to ____
A) increase B) decrease C) stay the same D) none of these
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A male ferret is called a ____________________
Fill in the blank(s) with correct word
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