LESSON 3
PRACTICE EXERCISE
The following items will test you grasp of the material covered in this lesson. There is only one correct
answer to each item. When you complete the exercise, check your answer with the answer key that
follows. If you answer any item incorrectly, study again that part of the lesson which contains the
portion involved.
Situation. You are to construct a roof system. You know that the ceiling joists form the framework for
the ceiling of a room.
1.
Rafters make up the main body of the framework of all roofs. Rafters are extended a short
distance beyond the wall to--
A.
Strengthen the wall
B.
Form the eaves and protect the sides of the building
C.
Prevent the wind from passing between the top plate and the rafters
D.
Strengthen the roof
2.
What is the line length as used in roof framing?
A.
The
rise
B.
The
run
C.
The
span
D.
The
3.
What is the total run of an ordinary rafter?
A.
Half of the span
B.
Half of the run
C.
The hypotenuse
D.
The measurement of 12 inches
4.
Common rafters extend from the _____________ to the _____________.
A.
Plate to the hip rafter
B.
Ridge to the valley rafter
C.
Plate to the roof edge
D.
Ridge the roof edge
3-31
EN5156
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