1.
What is the area factor of registers, grilles and diffusers that reflects the free area for airflow relative to a square foot?
A
Boots
B
Ak Factor
C
Plenum
2.
These are sheet metal fittings designed to transition from the branch duct to he receptacle for the grills, register, or diffuser to be installed.
A
Plenum
B
Takeoffs
C
Boots
3.
The condition that exists when there is no external static pressure at the inlet or outlet of an air-moving device is _____.
A
Stratify
B
Free air delivery
C
Venturi
4.
A chamber at the inlet or outlet of an air handler, the air distribution system attaches to this.
A
Takeoffs
B
Boots
C
Plenum
5.
In air distribution, layers of air at different temperatures will tend to do this unless outside influence forces the air to move and mix is called _____.
A
Venturi
B
Ak factor
C
Stratify
6.
A connection point installed on a trunk duct that allow the connection of a brand duct.
A
Plenum
B
Takeoff
C
Boots
7.
The barrier placed over insulation to stop water vapor from passing through the insulation and condensing on a cold surface is called a_____.
A
Ak factor
B
Free air delivery
C
Vapor barrier
8.
A ring or panel surrounding the blades on a propeller fan to improve fan performance is ______.
