Bcit carpentry level 1 - modules g4, g5,
g7
On which kind of surface should a slab-on-grade be placed? correct
answerssuitable bearing or compacted fill
What factors affect the durability of slabs-on-grade? correct
answersprotection from weather, finishing, W:C ratio
What factors affect the strength of slabs-on-grade? correct
answersbase material, concrete mix, curing
What should be done to walls or columns that pass through or beside slabs-
on-grade? correct answersprovide isolation joints
Why is it important to compact the sub grade? correct answersgive firm,
even bearing
Why are screeds and forms oiled before concrete placement? correct
answerseasy cleaning
How long should slab forms remain in place after concrete
placement? correct answersas long as possible
Does BC Building Code require reinforcement for slabs-on-grade?
correct answersNo
Reinforcement for concrete comes in which forms? correct answersHeavy
wire mesh, rebar
What types of gardeners are there? correct answersPowdered and
mechanical When are hardeners applied? correct answersDuring
finishing
Controlling water/cement ratio (W:C ratio) contributes to what? correct
answersStrength and durablility
What are the two basic types of slab-on-grade? correct answersMonolithic
and isolated What will separate slap and footing and slab and wall? correct
answersA barrier
What is the main property of steel and concrete that allows steel to be used
to reinforce concrete? correct answerssimilar coefficient of expansion
, The compressive strength of concrete is about x times its tensile
strength? correct answers10 times
What is the size of a 10 M bar? correct answers10 mm. (⅜)
diameter What name describes a grade 60 bar? correct
answershard
What type of construction uses welded wire mesh for reinforcing
concrete? correct answersslab-on-grade
Welded wire mesh is available in sheets 6100 mm long, or rolls 61 000 mm
long. How wide is it? correct answers2.288 m or 7.5'
In the description 254 × 254 × P13/P13, what does P13 mean? correct
answerscross section of wire is 13 mm? R=2, Dia.=4
What does yield mean, as applied to reinforcing steel? correct
answersfails at that strength
How are L-shaped anchor bolts placed when great accuracy is not required?
correct answersThey are placed by hand as soon as the concrete has been
leveled and floated (known as wet-set).
The Building Code requires anchor bolts to be spaced how? correct
answers2.4 m o.c Engineers specify a maximum anchor bolt spacing of
what? correct answers1.2 m o.c
What is done to anchor bolts to prevent them from turning or pulling out
when their nuts are tightened? correct answersBent at the end
The job of anchor bolts is to: correct answershold the building down to the
foundation, and provide lateral support to the foundation wall.
The two common strengths of mesh sheets or rolls are: correct
answers300 MPa and 400 MPa.
Where is sheet and mesh specified? correct answersOn the buildings
drawing
How should rods be left after placing concrete and stripping the
form? correct answersprojecting from the first slab
What is bent to form a right angle, and inserted through the
keyway correct answersAngled dowels
If not specified, the distance dowels must penetrate each concrete
section is: correct answers24 times the diameter of the dowel.
g7
On which kind of surface should a slab-on-grade be placed? correct
answerssuitable bearing or compacted fill
What factors affect the durability of slabs-on-grade? correct
answersprotection from weather, finishing, W:C ratio
What factors affect the strength of slabs-on-grade? correct
answersbase material, concrete mix, curing
What should be done to walls or columns that pass through or beside slabs-
on-grade? correct answersprovide isolation joints
Why is it important to compact the sub grade? correct answersgive firm,
even bearing
Why are screeds and forms oiled before concrete placement? correct
answerseasy cleaning
How long should slab forms remain in place after concrete
placement? correct answersas long as possible
Does BC Building Code require reinforcement for slabs-on-grade?
correct answersNo
Reinforcement for concrete comes in which forms? correct answersHeavy
wire mesh, rebar
What types of gardeners are there? correct answersPowdered and
mechanical When are hardeners applied? correct answersDuring
finishing
Controlling water/cement ratio (W:C ratio) contributes to what? correct
answersStrength and durablility
What are the two basic types of slab-on-grade? correct answersMonolithic
and isolated What will separate slap and footing and slab and wall? correct
answersA barrier
What is the main property of steel and concrete that allows steel to be used
to reinforce concrete? correct answerssimilar coefficient of expansion
, The compressive strength of concrete is about x times its tensile
strength? correct answers10 times
What is the size of a 10 M bar? correct answers10 mm. (⅜)
diameter What name describes a grade 60 bar? correct
answershard
What type of construction uses welded wire mesh for reinforcing
concrete? correct answersslab-on-grade
Welded wire mesh is available in sheets 6100 mm long, or rolls 61 000 mm
long. How wide is it? correct answers2.288 m or 7.5'
In the description 254 × 254 × P13/P13, what does P13 mean? correct
answerscross section of wire is 13 mm? R=2, Dia.=4
What does yield mean, as applied to reinforcing steel? correct
answersfails at that strength
How are L-shaped anchor bolts placed when great accuracy is not required?
correct answersThey are placed by hand as soon as the concrete has been
leveled and floated (known as wet-set).
The Building Code requires anchor bolts to be spaced how? correct
answers2.4 m o.c Engineers specify a maximum anchor bolt spacing of
what? correct answers1.2 m o.c
What is done to anchor bolts to prevent them from turning or pulling out
when their nuts are tightened? correct answersBent at the end
The job of anchor bolts is to: correct answershold the building down to the
foundation, and provide lateral support to the foundation wall.
The two common strengths of mesh sheets or rolls are: correct
answers300 MPa and 400 MPa.
Where is sheet and mesh specified? correct answersOn the buildings
drawing
How should rods be left after placing concrete and stripping the
form? correct answersprojecting from the first slab
What is bent to form a right angle, and inserted through the
keyway correct answersAngled dowels
If not specified, the distance dowels must penetrate each concrete
section is: correct answers24 times the diameter of the dowel.
