What characteristic makes a grille into a register?
a. An adjustable damper installed behind the face.
b. The absence of an adjustable damper behind the face.
c. Widely spaced louvers on the face.
d. Being designed to fit into a 24 × 24 suspended ceiling grid.
a
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The term _____ is based on a scale rule that is multiples of the 4" grid called the module.
A. course counter B. modular C. oversize brick D. engineer
_______________ and ____________ pipes should be pitched toward the tank opening to prevent the formation of oil traps.
Fill in the blank(s) with the appropriate word(s).
When blowing through the vacuum supply hose, if air passes through the check valve into the booster __________
A) Replace the vacuum pump B) Replace the booster C) Replace the check valve D) The check valve is functioning properly
The system ________ can communicate with each other and adjust system operation to match the heat load and operating conditions
A) Computers B) Components C) Remotes D) Controls