Module 5 - Building Components

Question 1

Typical stud spacing

Answer 1

16” or 24” on center

Question 2

Typical sizes of wood studs

Answer 2

2x4 and 2x6 (nominal dimensions)
typically used for residential

Question 3

Typical size of metal studs

Answer 3

2 1/2” set into metal channels on ceiling and floor
most common in commercial spaces

Question 4

Size of gyp boards

Answer 4

most common is 4’x8’
Other common sizes include 4’x9’, 4’x10’, and 4’x12’

Question 5

Mechanical systems include

Answer 5

heating and cooling , plumbing, fire protection and electrical systems

Question 6

Plenum

Answer 6

The space between the ceiling and the structural floor above is used as a passage for ductwork, piping, wiring, and return air space.

Building codes limit the use of combustible and hazardous materials in the plenum.

Question 7

VAV

Answer 7

variable air volume (as opposed to constant air volume, CAV)
With variable air volume systems, the VAV box varies the quantity of air. One duct leads in and one or more lead out and is attached to registers mounted in the ceiling. A VAV box is placed in the plenum near the space it serves.