How often should the spark plug be replaced?
What will be an ideal response?
The spark plug should be replaced after 100 hours of operation.
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Why is it important for an airport to develop and maintain an effective wildlife management program?
What is a wildlife hazard assessment? Why is it important for an airport operator to manage wildlife attractants?
Any coloration of the Saanen dairy goat breed is registered as a(n) ____________________ dairy goat.
Fill in the blank(s) with the appropriate word(s).
Proper height above the roof is important when installing a heat pump rooftop unit:
A) To allow the condenser to take advantage of local prevailing wind. B) To ensure adequate combustion air to the burners. C) So that the unit can be serviced from underneath. D) So that snow does not block airflow through the outdoor coil.
A common type of defrost control used on air-source heat pumps is:
A) Demand defrost based on compressor current draw. B) Time initiated and time terminated. C) Demand defrost based on suction pressure. D) Time initiated and temperature terminated.