Boxes that are listed for ceiling suspended paddle fans are permitted to support fans that do not weigh more than __________ pounds. Boxes that can support more than 35 pounds must have the maximum weight marked on the box.
a. 35
b. 45
c. 50
d. 70
d. 70
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____ decking uses a concrete topping poured onto metal decking to provide a strong and stiff structural floor system.
A. Cellular steel-floor raceway B. Concrete C. Acoustic steel D. Composite metal
____ colors, such as those ranging from reds through orange and yellow, create a feeling of friendliness.
A. Light B. Dark C. Warm D. Cool
?Technician A says that too much oil pressure can cause excessive oil consumption. Technician B says that viscosity goes up (oil becomes thicker) with lower temperatures. Who is right?
A. ?Technician A only B. ?Technician B only C. ?Both A and B D. ?Neither A nor B
The curb's cross braces are intended to support the duct connections to the unit, but not the entire air distribution system.
Answer the following statement true (T) or false (F)