Name: 
 

Chapter 4



True/False
Indicate whether the sentence or statement is true or false.
 

 1. 

If a duct system is installed correctly, it is not necessary to seal the joints because they will not leak.
 

 2. 

A slip connector is installed on the short dimension of a rectangular galvanized metal duct system.
 

 3. 

A drive connector should be installed on the short dimension of a rectangular galvanized metal duct section.
 

 4. 

When connecting round metal ductwork, the male end connection should always face toward the air supply.
 

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 5. 

Which type of duct system is used primarily when the duct system and the air handler are not located on the same level?
a.
plenum-type duct system
b.
extended-plenum duct system
c.
reducing-extended-plenum duct system
d.
perimeter duct system
 

 6. 

Which type of duct system is used on systems that have the air handler located at one end of the structure to be conditioned?
a.
plenum-type duct system
b.
extended-plenum duct system
c.
reducing-extended-plenum duct system
d.
perimeter duct system
 

 7. 

Which type of air handler would be best suited for attic installation?
a.
vertical upflow
c.
horizontal
b.
vertical downflow
 

 8. 

Which type of duct insulating material is installed on the inside of the duct system?
a.
foil-covered fiberglass insulation wrap
b.
acoustical duct lining
c.
either a or b
d.
neither a nor b
 

 9. 

At least ____ screws must be used to make connections for round metal ductwork.
a.
1
c.
3
b.
2
d.
4
 

Short Answer
 

 10. 

What should be installed in a galvanized metal duct system to reduce sound transmission and vibration throughout the occupied space?
 



 
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