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Level 1 Carpentry Final Exam
Terms in this set (251)
What does WHMIS stand for?
Workplace Hazardous Material Information System.
What is basic PPE?
eye protection, ear protection, steel-toed boots, hardhats and respiratory protection.
List 3 Acts that provide safety regulations for workers in British Columbia?
Workers compensation Act, Factories Act, Mining Act.
Who do you report to if a tool is damaged?
Whose responsibility is it to provide WHMIS training?
What are the limits of approach for power lines?
75,000v 3 metres, 75,000-250,000v 4.5 metres, over 250,000v 6 metres.
What is the level of PSI when cleaning clothing with compressed air?
70 kPa (10 psi)
Signals for hoists?
one-STOP, two-RAISE, three-LOWER, Four-ALL CLEAR.
What should be done before moving bottles of compressed gas?
Make sure the protective cap is securely in place.
Can individuals be fined for failing to follow the worksafe bc regulations?
What does CSA stand for?
The Canadian Standards Association.
Does WorksafeBC require construction workers to have hearing tested once a year?
When is Eye protection required?
Whenever doing a task that is dangerous to the eye.
Symptoms of mild hypothermia?
normal breathing and pulse, bouts of shivering.
symptoms moderate hypothermia?
violent shivering, slow weak pulse, inability to think.
shivering has stopped, unconsciousness, little or no breathing.
Should your back be straight and not bent when lifting?
What is a normal ladder slope?
List 3 important considerations while shovelling?
keep back straight, bend knees, position your self in a comfortable position.
List the 5 preferred fall safety systems?
Guardrails, fall restraint system, full body harness, safety monitor with a controlled zone, a safety net.
When would you use safety belts?
for fall restraint systems.
And never pair it with?
A fall arrest situation.
What does the lanyard connect too?
Maintain a free fall of no more than?
How much breakable strength does a vertical lifeline have?
How much weight can the anchor sustain?
How much weight can a Horizontal lifeline provide?
800lbs per person attached to the line.
Breaking strength of a Horizontal lifeline?
what is a safety monitor?
Is a system in which a trained worker is designated to monitor work activities to ensure safe work is being done.
What is the minimum width of control zone for a safety monitor?
2 meters or 7 feet.
What is a "fall arrest system"?
An approved fall arrest system will limit the free falling of a worker to 4', approved systems use a lanyard, lifeline and harness.
What does MSDS stand for?
Material Safety Data Sheet
What is a MSDS?
It is a technical bulletin that provides detailed hazard, precautionary, and emergency information on a controlled product.
When does your employer get a new MSDS?
When the data sheet is over three years old.
Examples of compressed gas?
Examples of flammable material?
butane, white phosphorus, acetone.
examples of oxidizing material?
sodium hypochloric, perchloric acid.
examples of poisonous material?
sodium cyanide, hydrogen sulphide.
examples of bio-hazardous material?
hep B virus, salmonella.
examples of corrosive material?
examples of dangerously reactive material?
plastic monomers and some cyanides.
What is the normal moisture content for wood?
What is the minimum moisture content at which wood will begin to rot?
What are the two preservatives used in Pressure Treated wood?
chromated copper arsenate
What type of air born fibre is the most dangerous?
List two woods naturally resistant to wood decay?
Redwood and Cedar.
What causes silicosis?
inhalation of silica aka fine concrete dust.
What metals are classified as "heavy metals"?
lead, mercury and arsenic.
What does the fire triangle consist of?
heat, fuel, oxygen.
What are Class A fires? Which type of extinguisher would you use?
They are fires involving ordinary combustible materials, such as wood, cloth and paper. Extinguisher with an A on it
What is a class B fire?
Fires that involve flammable liquids ex. GAS
DO NOT USE WATER.
What is a Class C fire?
Fires involving energized electrical equipment. DO NOT USE WATER.
What are class D fires?
Fires that involve certain combustible metals such as, magnesium, titanium, and sodium.
Class A extinguisher?
wood, paper, textiles etc.
What is the multi purpose extinguisher?
What psi do extinguishers range from?
What three types of pictorial drawings are there?
perspective, isometric, oblique.
What are the 7 types of drawings?
architectural, structural, mechanical, electrical, shop, as built and landscape.
What are architectural drawings used for?
overall design and finishing details.
What do structural drawings show?
bean and girder details.
are telephone locations shown on electrical drawings?
What is the purpose of As-built drawings?
Owners may ask subtrades to make detailed drawings of their work for possible conflicts in the future.
_____________ _ _ _________ _ _ _________
_______________ _ ___________ _ _______
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
What is the most common scale for construction drawings?
What would the plot plan have in its drawings?
walkways, driveways, and retaining walls.
what would the foundation plan show?
the size and location of all the footings.
the floor plan?
They give all the room dimensions and the overall dimensions of the building.
What does the elevation show?
It shows how the exterior of the building will look when its finished.
What is a butt gauge used for?
laying out hinge gains.
what is another name for a beam compass?
what is the most commonly used square by a carpenter?
The body and tongue of a framing square are?
24'' body and 16'' tongue.
Which tool is best for stair layout?
which tool can transfer angles?
Sliding T bevel
which square can be used for a marking gauge?
where is the rafter table located on a framing square?
on the face of the blade.
What is the best way for levelling a long distance?
using a string line
Which type of saw has teeth like tiny chisels?
What causes a saw to buckle in a a piece of wood?
what does the number stamped or printed on the heel of a handsaw indicate?
The number of point per inch.
How do you adjust the depth of a cut on a jack plane?
by turning the adjusting nut
what is adjusted to make the plane iron parallel to the sole of the plane?
lateral adjustment lever.
what angle should plane irons and chisels be ground to?
there are three styles of twist for auger bits?
Solid centre, single twist, double twist.
What is the square end of the auger bit called?
Should outside edges be sharpened on auger bits?
no only the inside edges.
When would a torx screw be used?
For security purposes.
What type of pliers would you use for cut and tie wire for intsalling reinforcing steel in concrete forms?
What type of pliers would you use for cutting wire?
Which type of wrench has a box-end at one end and an open-end at the other?
what type of wrench is suited for gripping round objects?
What is the most commonly used wrench?
What is used to set bevel cuts on a skill saw?
What is another name for a plunge cut?
What is the max RPM for a skill saw?
What identifies the size of the skill saw?
The size of the blade.
What part do you adjust for the blade depth of a skill saw?
the body of the saw
What type of blades are used on skill saws?
fine toothed carbide tipped.
Number sizes drills range from?
1 to 80
What happens to the face of gypsum board if a screw is set too deep into a stud?
will break through the paper, thereby reducing the strength of the drywall.
This bit is used on an electric hand drill for drilling a hole that will extend only part way through the wood?
which type of nailer is used for fastening framing and sheathing?
strip nailer or coil nailer.
when using a nail gun how often do you check the air gauge?
twice a day
How is the power of a battery-powered tool rated?
What is the range of voltages that battery powered tools come in?
4.8 volt - 24 volts
low velocity P A T must be used whenever possible?
Low velocity powder actuated tools fire up to ?
100 metres per second
medium velocity of a PAT?
150 metres per second
high velocity of a PAT?
speeds up to 460 metres per second
What components does a low-velocity tool have that is not found in a high-velocity tool?
low-velocity have a piston as high do not.
The power level of a PAT lowest to highest?
gray, brown, green, yellow, red, purple.
When you select a cartridge for fastenign low-velocity tool, which load colour and power must you start with ?
gray power level 1
name two ways powder-actuated cartridges are fired?
rim fired, centre fired.
How much penetration is required for fastening a 38 mm x 89 mm member to concrete?
What do you put on a fastener if its penetrating too deep into the surface?
What is spalling?
a spall is a patch of concrete that has been blown out by a poor fastening or concrete defect
what is the minimum thickness of concrete required for fastening with a powder actuated tool?
75mm or 3 inches.
what is the minimum distance you may set a fastener from a torch cut or weld?
50 mm or 2"
what is the minimum thickness of steel for accepting a PAT?
what three types of chainsaws are there?
gasoline, electric, air-driven.
The most common cause of serious injury from a chainsaw is?
What is the best way to prevent kickback?
keep the back of the saw against your body.
3 types of cuts made with a chain saw?
plunge, under cut, top cut.
2 safety features that prevent injuries?
chain catcher and rear hand guards.
What divice prevents Raynauds Syndrome?
What is the safest of the 3 cuts?
when filing a cutter, pressure should be applied against the?
edge of the cutter on outward stroke.
to remove an old chain you must dismount?
What is used to adjust the blade to allow ripping between 45-90 degrees?
tilt hand wheel and lock
what are the two machined groves on the tabletop for?
mitre gauges and crosscut boxes.
how do you lock the height and tilt the adjustments on a table saw?
tighten the lock knobs
Which instrument requires only the fisheye bubble to be adjusted?
an automatic level
another name for an automatic level?
self levelling level.
the transit level can?
perform adequately both vertically and horizontally.
An optical level should be picked up by its base?
vibration has bad effect on optical levels?
sudden extremes in temperature?
could cause the interior lenses to fog up.
laser or electronic levels are not suitable for use when laying drainage pipes?
What information can be found in a legal description?
lot number, city section, and large plan number.
what is an encroachment?
a building extending onto another property.
The abbreviation OIP stands for what?
Iron Post Found
a witness stake is used when?
a set back or offset is required.
Why do corner stakes for excavations not have a nail driven into the top?
excavations are not precise.
which is a physical marker used on site to establish on-site elevations?
grade stakes are usually placed on?
grid lines are indicated by?
a letter and a number.
the removal of garbage, debris and shit is called?
string lines are usually set to cross directly over ?
outside building corner.
what angle are Keyways usually set at?
What are dowels used for?
used to connect two sepertae cast-in-place concrete sections.
what is the maximum step allowed for a step footing?
600mm or 2"
what type of footing is used under a concrete wall?
what is often used with dowels?
What is a corbel?
Its a widening in a wall, often at the top.
What controls the maximum spacing of the studs in a double waler system?
the maximum allowable deflection of concrete.
What is a window buck?
It is used to make the openings for wood framed doors and windows in a concrete wall.
What are blockouts for?
so that beams, pipes, or ductwork can be installed later.
What is a bulk head?
It is the end face of a section of formwork acting as a vertical support to the concrete.
what is contact area?
contact area is the surface area of both the inside and outside concrete walls.
three distinct framing systems?
platform, balloon, post beam and plank.
Platform framing is also known as?
What is the standard stud length for platform framing?
The single bottom plate is known as?
Balloon-frame construction is also known as?
How long are the studs in Eastern Framing?
18 feet long.
Why have framing systems been developed?
To construct low-rise residential and commercial buildings.
What are knee walls?
Knee walls are a type of pony wall which support the rafters and close off the attic space.
How does a girder differ from a beam?
larger beams are called girders a d girders support beams.
what is a purlin?
purlins are beams used to support rafters or ceiling joists.
why are collar ties used?
used to strengthen the rafters and reduce the unsupported span.
What is a cantilever?
Its a portion of a beam or joist that projects beyond its support.
Where is a parapet used?
A parapet is used as a railing or fire stop/block.
what is the horizontal projection of the roof at the top of a wall called?
How long does it take for wood to mature to a size that it can be harvested?
what happens to wood when exposed to atmospheric changes?
its swells and shrinks.
What is water in a cell wall called?
when does wood shrink?
when all the free water is gone from the cells.
where does the greatest shrinkage take place in a piece of wood?
width and thickness
quater-sawn wood is also known as?
which species of wood is considered the strongest of the softwoods?
Which is the heaviest species of softwood?
What causes wood decay?
Which insect eats the wood?
which insect leaves piles of sawdust and makes a rustling sound in walls?
which insect travels in specially constructed mud tunnels?
which insect that bored small round holes in wood?
where is machine stress lumber used?
list 4 grades used with lumber classified as "light framing"
construction, utility, economy, standard.
list 4 grades used with lumber classified as "structural joists and planks"
select structural, number 1, number 2, number 3.
What does S-GRN stand for?
list 2 basic types of sheathing panels?
plywood and composition board.
describe cross banding?
when the plywood veneer is laid out at right angles to one other.
what two features do OSB sheets have to help resist water?
painted edges and drainage holes along the tongue.
What does equilibrium mean?
a state of balance. The moisture control on lumber.
LVL stands for?
Laminated Veneer Lumber
What does OWSJ stand for?
Open Web Steel Joist
what materials can be used for the top chord of an 'I' joist?
What types of materials are used to make the webs of engineered floor joists?
The webs are made from plywood or OSB and os joined to the chord with a special edge finger joint.
When would a piggy back truss be used?
when the truss is to tall to be transported.
Why would a coated nail be used?
to prevent the nail to corrode.
Which type of nail would be suited for exposure to the weather?
hot-dipped galvanized nail.
what is the difference between sheer and withdrawal?
sheer is the resistant of pulling out while withdrawal is the resistant of lateral movement.
What forces are acting on a post anchor?
uplifting forces of wind.
what is a connector plate used for?
used for wall bracing
what types of building would use a 4' long anchor bolt?
high rise construction.
what are sill plates used for ?
support floor and wall framing.
what is the minimujm o.c spacing for anchor bolts?
What is a shear point?
it is the edge of a bearing end over supporting a framing member.
what is the purpose of a pier?
to support the column
describe the term "supported joist length"
the amount of floor a beam supports.
What is the minimum end bearing for floor joists?
What type of nails are used to fasten floor joists?
3 1/4" common nails.
What is the primary cause for squeaks in wood floors?
the friction between the fastener and sub-flooring.
what must be done before applying loads to parallel chord joists?
installation of squash blocks and rim joists.
what is the minimum nailing for floor joists to sill plates?
2 82mm toe nails.
how far is a 2x10 joist allowed to cantilever beyond its support if it is supporting floor load?
a 2x10 cannot cantilever beyond its support if it is supporting floor load.
What does strapping consist of?
1x4 nailed at 7"0.c
what materials can be used for strapping?
19x64mm lumber, furring strip's
Where is the first sheet started?
at the longest side of the building, chalk a line 48" from the edge.
why is lumber floor sheathing installed at a 45 degree angle?
to be used as a diagonal bracing.
what is the maximum width of lumber floor sheathing?
list two types of matched edges used with floor sheathing?
tongue and grooved, and ship lapped.
When toe nailing wall studs in place, what is the minimum length of nail that may be used?
what is the minimum length of nail that may be used to fasten the cripple studs to the adjacent studs?
3" nails every 30"
why is not a good idea to leave concealed spaces in the wall frame?
because insulation must be placed in those open spaces.
what are L studs for?
to connect the walls and provide a nailing ground.
What does PET stand for?
precision end trimmed.
what is the best way to determine stud length?
a storey pole.
How are panel type walls nailed?
they are nailed at 6" o.c along the edges abd 12" o.c in the middle of the sheets.
should wall sheathing be joined at corners of window and door openings in non-load bearing walls?
describe how a spring brace is used?
its a 1x8 member that is nailed to the top plate and then to the floor.
why should sheathing overlap the window openings?
the sheathing should overlap to provide support to the corners of the openings.
over what height of wall are fire stops required?
other than staggering the studs what can be done to reduce sound transmission?
the installation of insulation.
what determines the position of the ceiling joists?
the o.c spacing, floor openings, roof projections.
why is the ceiling joist cut 3/8 lower that the height of the rafters?
to allow rafter shrinkage
which type of roofs uses stub joists?
what are outriggers used for?
To frame the overhang of the gable roof.
what is the difference between the line length and run of a rafter?
line length is the sloped measurement while the run is horizontal.
what are H clips used for?
H-clips are used for to support the ceilings between rafters
how is the ridge board laid out?
what o.c spacing is used for trusses?
which trusses are set first?
What is another name for a hip roof?
what type of cut is used for a rip rafter?
double cheek cut.
what type of cheek cut is used for a jack rafter?
single cheek cut.
Does the depth of a birds mouth on a common rafter set the birds mouth for the hip?
What does the tripod consist of?
the end common and two commons.
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