CARPENTRY LEVEL 2 EXAM
How much are on center common rafters shortened at the top? - ANSWERS-half the
thickness of the ridge board
If a roof has a 19mm ridge and 38mm common rafters, how much is a 38mm x 140mm pin
rafter shortened? - ANSWERS-19mm
Why are shortenings for a hip rafter done on a diagonal to other framing members? -
ANSWERS-rise
Why are shortenings for a hip rafter done on a diagonal to other framing members? -
ANSWERS-because in plan view, hip rafters run at 45 deg. to other framing members
Which of the following is one of the common units of run used on a metric square for hip
rafters? - ANSWERS-424mm
What is the minimum thickness of a hip rafter? - ANSWERS-38 mm
What is the name of the framing members that attach to the sides of hip rafters? -
ANSWERS-hip jacks
With what should the top edge of the hip rafters be flush? - ANSWERS-top surface of the
commons
When using the metric square, the standard runs are: - ANSWERS-For common rafters 300
mm and 424 mm for hip rafters
,The shortening made at the top end of the "end" common is equal to what measurement? -
ANSWERS-half the thickness of the first common
What is the standard unit of run used on an imperial square for common rafters? -
ANSWERS-12"
What is an end common rafter? - ANSWERS-A common rafter at the end of a ridge that is
parallel to the ridge.
To layout the cheek cuts at the rafter tail, measure ahead and back from the shortening
plumb line: - ANSWERS-Half the thickness of the hip rafter
How much are end common rafters shortened at the top? - ANSWERS-half the thickness of
the common rafter
The first two steps in actually laying out a hip rafter is: - ANSWERS-Lay out the working
points including plumb lines and then shorten at the ridge.
To layout a seat cut for a common rafter of a hip roof, with a slope of 1:4, what figures on
the framing square would be used? - ANSWERS-62.5 and 250, mark on 250
How much deeper must a hip rafter be than a common rafter? - ANSWERS-50 mm
Cheek cuts for a hip rafter are made by following the plumb lines with a circular saw set at: -
ANSWERS-45 deg.
How are hip jack rafters supported at their lower end? - ANSWERS-wall plates
Where is the working point at the top end of a hip jack rafter actually located? - ANSWERS-
center of the hip
, The tail of the hip jack rafter is shortened by: - ANSWERS-The thickness of the fascia
What will be the actual length of the hip roof ridge for a building with the following
specifications?
Building size 12 000 mm x 7000 mm
Roof slope 100 : 250
All stock 38 mm thick - ANSWERS-5038 mm
To which of the following are hip jack rafters very similar? - ANSWERS-common rafters
Which of the following is the most important, before installation of roof members can
begin? - ANSWERS-adequately brace supporting walls
How is the ridgeboard calculated for a hip roof? - ANSWERS-building length minus width
Before starting to frame a hip roof what should be done first? - ANSWERS-ensure all wall
plates are true
What would be the actual cutting length of the main ridgeboard for the following roof?
Building Size: 14 700 mm x 6400 mm
Slope: 6:12- 2 x 4
Common Rafters - ANSWERS-8338 mm
The run of a hip jack rafter is always equal to what measurement? - ANSWERS-its' distance
from the corner of the building
To determine the cutting length of a ridge for a hip roof you start with its theoretical line
length and then: - ANSWERS-Add the full thickness of one common rafter.
How much are on center common rafters shortened at the top? - ANSWERS-half the
thickness of the ridge board
If a roof has a 19mm ridge and 38mm common rafters, how much is a 38mm x 140mm pin
rafter shortened? - ANSWERS-19mm
Why are shortenings for a hip rafter done on a diagonal to other framing members? -
ANSWERS-rise
Why are shortenings for a hip rafter done on a diagonal to other framing members? -
ANSWERS-because in plan view, hip rafters run at 45 deg. to other framing members
Which of the following is one of the common units of run used on a metric square for hip
rafters? - ANSWERS-424mm
What is the minimum thickness of a hip rafter? - ANSWERS-38 mm
What is the name of the framing members that attach to the sides of hip rafters? -
ANSWERS-hip jacks
With what should the top edge of the hip rafters be flush? - ANSWERS-top surface of the
commons
When using the metric square, the standard runs are: - ANSWERS-For common rafters 300
mm and 424 mm for hip rafters
,The shortening made at the top end of the "end" common is equal to what measurement? -
ANSWERS-half the thickness of the first common
What is the standard unit of run used on an imperial square for common rafters? -
ANSWERS-12"
What is an end common rafter? - ANSWERS-A common rafter at the end of a ridge that is
parallel to the ridge.
To layout the cheek cuts at the rafter tail, measure ahead and back from the shortening
plumb line: - ANSWERS-Half the thickness of the hip rafter
How much are end common rafters shortened at the top? - ANSWERS-half the thickness of
the common rafter
The first two steps in actually laying out a hip rafter is: - ANSWERS-Lay out the working
points including plumb lines and then shorten at the ridge.
To layout a seat cut for a common rafter of a hip roof, with a slope of 1:4, what figures on
the framing square would be used? - ANSWERS-62.5 and 250, mark on 250
How much deeper must a hip rafter be than a common rafter? - ANSWERS-50 mm
Cheek cuts for a hip rafter are made by following the plumb lines with a circular saw set at: -
ANSWERS-45 deg.
How are hip jack rafters supported at their lower end? - ANSWERS-wall plates
Where is the working point at the top end of a hip jack rafter actually located? - ANSWERS-
center of the hip
, The tail of the hip jack rafter is shortened by: - ANSWERS-The thickness of the fascia
What will be the actual length of the hip roof ridge for a building with the following
specifications?
Building size 12 000 mm x 7000 mm
Roof slope 100 : 250
All stock 38 mm thick - ANSWERS-5038 mm
To which of the following are hip jack rafters very similar? - ANSWERS-common rafters
Which of the following is the most important, before installation of roof members can
begin? - ANSWERS-adequately brace supporting walls
How is the ridgeboard calculated for a hip roof? - ANSWERS-building length minus width
Before starting to frame a hip roof what should be done first? - ANSWERS-ensure all wall
plates are true
What would be the actual cutting length of the main ridgeboard for the following roof?
Building Size: 14 700 mm x 6400 mm
Slope: 6:12- 2 x 4
Common Rafters - ANSWERS-8338 mm
The run of a hip jack rafter is always equal to what measurement? - ANSWERS-its' distance
from the corner of the building
To determine the cutting length of a ridge for a hip roof you start with its theoretical line
length and then: - ANSWERS-Add the full thickness of one common rafter.
