What is the primary function of the private branch exchange (PBX)?
A. Switching one telephone line to another
B. To meet the increasing demands of data transmission
C. To meet the economic objectives of providing service
D. To maintain order during the interchange of data
A
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What would you say about the code values for numbers of plumbing fixtures that must be installed in buildings?
A) Reduced numbers would generally be adequate, but not allowed. B) They are sufficient based on years of industry experience. C) Designing for higher fixture counts is usually advisable.
In determining the total width of a movement joint between building components, we account for the dimensional and construction tolerances. Poor or inadequate quality control on a construction site
A) decreases dimensional tolerances. B) increases construction tolerances. C) increases dimensional tolerances. D) decreases construction tolerances. E) none of the above.
What two pressures are created by air moving through the duct system?
A) Velocity pressure and static pressure B) Barometric pressure and atmospheric pressure C) Air pressure and friction pressure D) Supply pressure and return pressure
To avoid electrical shock, what class fire extinguisher should be used on electrical equipment?
A) Class B B) Class C C) Class D D) Class A