Ventilation systems can be grouped by their effect on building pressure as:
A) Small, medium, or large. B) Exhaust, supply, or balanced.
C) Contributing, offsetting, or correcting. D) Natural draft or forced draft.
B
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Gasoline containers must be placed in a ____________________ space.
Fill in the blank(s) with the appropriate word(s).
The boiler system component that monitors water temperature and typically controls the burner of a standard boiler is _____.
a. the water level control b. a zone control c. the make-up water valve d. an aquastat
The multi-zone roof top units are usually custom manufactured for a specific application with a specific number of zones.
Answer the following statement true (T) or false (F)
What is the main ingredient found in a diesel fuel conditioner?
A. alcohol B. cetane improver C. cleaning additives D. pour point depressant