Air leakage through a building envelope is a function of
A) the area of holes, cracks, and openings in the envelope.
B) wind speed.
C) materials of which the component is made.
D) all of the above.
E) A, B, and the inside -outside air temperature difference.
E) A, B, and the inside -outside air temperature difference.
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What helps prevent water pump cavitation?
A) Using the correct water pump B) Using the specified radiator cap C) Using the specified brand of heater hose D) Use a higher output water pump
A disease caused by bacteria, fungi, and some other organisms found in the feedlot is called
____________________.
Fill in the blank(s) with the appropriate word(s).The throttle plate is spring loaded to hold the throttle slightly open how far?
A) 8% to 10% B) 16% to 20% C) 22% to 28% D) 3% to 5%
Why do solenoid type valves pose a problem for some types of burners?
A) Solenoids open and close too slowly. B) Solenoids open and close too quickly. C) Solenoids' seal is not strong. D) Solenoids create too much pressure when closing.