F-2 Flashcards
Who must design the support system and the stages of demolition before a building can be demolished?
Professional Engineer
What safety gear must a worker wear in demolishing a building
Boots, hard hat, eye protection, gloves
What services must be disconnected before a building can be demolished?
Electrical Water Gas Sewer Telephone
What height above adjacent levels are scaffolds required?
3m(10ft)
What is required when chutes are used to remove debris from a building?
Enclosed and gated if more than 45 degrees
Enclosed at both entry points
Should lead to truck or bin
When is hoarding required?
When demolition is next to a street or sidewalk
2 things that must be done when material is dropped from upper floors into a specified outside area.
Barricade where materials will land
Put up signs.
Why are hoardings constructed?
To protect people who are not working on the building site
According to the building code, how much height should a “covered walkway” have?
2.5m
Building construction poses a hazard to the public. A covered walkway is required if it is closer than __m to the public right of way?
2m
A covered hoarding must have a weather-tight roof that is…
Sloped toward the project.
Who determines whether hoarding is adequate and can begin construction or demolition?
Local Building Authority
2 Advantages of covered hoarding using arch-way scaffold supporting a concrete form panel roof.
Save on labour and Material
2 disadvantages of covered hoarding which uses archway scaffold supporting concrete form panel roof
Time consuming, if used for long period it is expensive.
If hoarding is placed on the street, it must be equipped with…
Warning Lights
What is a courtesy to include when constructing hoardings?
Direction signs at entrances
How can a builder take advantage of cut and fill practises to reduce cost of transporting fill dirt?
Use excavated dirt to fill the low areas
Grade stakes are usually place on…
Grid lines
Where is the depth of cut taken from?
The top of the grade stake.
Removal of garbage, debris, old frames etc. is called…
Grubbing
Does the concrete displace slurry when the concrete is placed in a concrete-slurry wall?
Yes
What are steel H beams used for a concrete slurry wall called?
Soldier beams
What supports the shore when a short supports the wall of a building?
Hydrolic jack and mud crib
Where is a needle beam placed?
In an opening in the wall.
What two types of underpinning are placed in spaced sections under an original footing?
Leg underpinning
Jack cylinder underpinning
When must shoring be inspected?
Beginning of each day, and if there’s vibration, often during the day.
Footings must be at least 1.2m below grade to…
Prevent problems when building on clay
Typical thickness of lifts beneath slabs are 4”-6” so that…
Compaction can be done evenly
Bottom of excavations cannot…
Freeze, have standing water or have organics
Difference between perimeter drainage systems and granular drainage systems is that the perimeter drainage systems use…
Perforated pipe
Rainwater leader is also known as a…
Downspout
Dry well must be installed…
Downhill from the building.
Perforated drainage pipe is to be installed so that…
The writing is up and the two holes face down.
Clean outs should be installed…
Where the pipe leaves the building or where convenient to unplug or flush.
The purpose of filter cloth is to…
To stop backfill fines from Mixing in with drain rock
Backfilling material should…
Have a slippage plane if backfill contains pyritic material or if soil is subject to ice lensing.
When backfilling against foundation walls, it is best to start…
With the corners
Slabs on grade need…
A uniformly dense base
