Construction Technology II - 7.05
Quiz
Ceiling joists provide a surface to fasten the ceiling finish and insure that:
- Floors do not buckle.
- Insulation is not needed.
- Opposite walls do not spread.
- Painting is critical.
What joist extends across the entire span of the structure?
- Ceiling
- Cripple
- Header
- Trimmer
Whenever possible, lay out and install ceiling joists directly above the wall:
- Corners.
- Headers.
- Plates.
- Studs.
When laying out ceiling joists 16" or 24" on center, the FIRST measurement is how much shorter?
- 1/4"
- 1/2"
- 5/8"
- 3/4"
To lay out a common gable roof, the R (rafter) would go on one side of the layout line and on the other would be:
- C.
- R.
- X.
- Z.
Allowable spans for joists depend on the species, size, and grade of lumber, as well as the spacing and:
- Load.
- Pressure.
- Run.
- Spot temperature.
What is the MINIMUM overlap required for ceiling joists that are supported by a wall?
- 6"
- 12"
- 12"
- 24"
If the joists exceed the allowable span, two pieces of joist material MUST be spliced over a bearing wall or:
- Header.
- Partition.
- Plate.
- Sill.
Appropriate safety equipment for floor openings during construction are:
- Bandages.
- Guard rails.
- Safety tags.
- Two-way radios.
What are the two ways to join ceiling joists over load bearing walls?
- Glued or clamped
- Lapped or butted
- Mitered or nailed
- Mortised or hinged
The ends of ceiling joists MUST also be cut at an angle matching the roof:
- Degree.
- Level.
- Peak.
- Pitch.
Once the ceiling joists are in position, they should be secured to the top plates by:
- Bolts.
- Clamping.
- Toe-nailing.
- Welding.
A rib-band or strongback is used to prevent twisting or bowing in the:
- Joists.
- Plates.
- Rafters.
- Trusses.
In addition to holding the joists in line, the strongback provides support for the joists at the center of the:
- Ridge.
- Rise.
- Run.
- Span.
On the average job, figuring one stud per lineal foot could leave a shortage, so always figure in an extra:
- 10%.
- 12%.
- 15%.
- 20%.