Refresher Test Flashcards
Line length for any framing member of a roof is always measured from?
A: end to end
B: wall to wall
C: working point to working point
D: the centre of the span
C: Working point to working point
In stair construction, fillets are used to fit
Between the balusters (spindels)
CODE
The minimum headroom requirement for
A: commercial stair?
B : residential stairs?
A: 2050 mm(6’ 8 3/4”)
B: 1950mm (6’5”)
CODE
How many stringers are required in a residential stair 1200 mm wide, if it has open risers?
3
CODE
9.8.9.4
3) Required exit stairs and public stairs serving buildings of other than residential occupancy shall have a width of not less than the greater of a) 900 mm,
In this case, since 1200mm is greater than 900mm a third stringer is required.
If they had closed risers, then 1200mm would be ok with just two stringers
CODE
At what height must a handrail for stairs be installed?
CODE
9.8.7.4
Handrails must be installed at a minimum height of 900 mm (35.4 inches) above the stair or ramp nosing.
The maximum height of a hand rail should not exceed 1,070 mm
(42.1 inches).
These measurements are taken vertically from the tread or landing nosing to the top of the handrail.
Handrails require at least 2″ of clearance (the distance between the edge of the railing and the nearest wall).
In most cases, handrails must be continuously graspable throughout the length of ramps and flights of stairs – from the bottom riser to the top riser.
The top of an upper cabinet is usually _____mm above the floor?
2100mm (84”)
When bonding plastic laminate, where do you begin applying pressure?
In the middle and work outward
What is the typical sequence of installation for a plastic-laminate counter top with edging and backsplash
Edging, counter top, face of splash
The type of floor finish required for a building will be shown
In the room schedule
A room measure 3.6m x 3.6m and the walls are 2.4 m high. How many sheets of drywall 3.6m long will you need for the entire room
*Drywall measures 1.2 wide (48”)
1.2 x 3= 3.6
Walls are 2.4 m high 1.2 x2 = 2.4
so 2 pieces covers one wall exactly
3 pieces covers the roof
8+ 3= 11
Which are true?
A carpenters checks mechanical drawings for (1) routing of the ductwork and openings in walls, floors, and roofs; (2) location of hot-air diffusers and cold-air returns; (3) location of light switches and fixtures
1 and 2 are true
3 is false
If specifications call for tile flooring and the drawings call for carpeting, which type of flooring would be considered correct?
Tile flooring
Specifications take precedence
Softwood lumber used for interior finishing should have a moisture content of
8-10%
Although usually around 10%
This is for finishing lumber
(Framing lumber is 19%)
How many board feet of lumber are in 188 pieces that are 2” x 8” and 14 feet long
Calculate board feet
Convert all feet to inches 14x 12 = 168
(188 x 2 x 8 x 168) divided by 12
= 3510 BM
Which of these are softwood?
Oak, pine, mahogany, ash, birch, maple, walnut, teak, fir, hemlock
Pine
Fir
Hemlock
Hardwood grades are based on the appearance of what
The worst face
Grades
FAS Firsts and Seconds
Select
Common 1
Common 2
Common 3
Utility
Which of the following bonding agents are waterproof
A: Urea-formaldehyde resins
B: phenolic resins
C: animal glues
D: Lignin
Phenolic resins
Name the types of waterproof bonding agents
1: polyvinyl acetate (PVA)
use as a bonding agent for application on concrete, cement board or masonry
Light: needs to be airtight
2: poly- eurethane
Can have a gap ( not airtight)
3: phenolic resins
When cutting a hardwood plywood panel with a table saw which direction should the veneer be placed
The veneer should be placed up
Need to know the rotation of the blade
As it rotates towards you, it makes a nice cut as it enters and a mess as it leaves, so your nice face should be on the entry side which is face up in this case
What type of door would have a
Ball-bearing hinge?
A heavy exterior door
What type of door would have a
NRP hinge?
NRP= non removable pin
Good for exterior doors
What is the proper spacing of door hinges?
Remember 7-11 (like the store)
7 inches from the top
11 inches from the bottom
The middle hinge is centred between the two
What kind of windows would use a sash fastener
Double hung windows
In a single hung window, which direction does the window slide?
The bottom slides up
In which direction does a double hung window open
Top slides down
Bottom slides up
When you use a cabinet scraper, you should scrape in which direction
With the grain
If you are required to sand fibreglass or other plastics, the sandpaper to use is?
Silicon carbide
Fun card
Tell me everything you know about sandpaper?
Graphite: for hand sanding
Aluminum sulphide: for power sanding
Silicon carbide: for plastics or fibreglass
Paper weight: A-F (A is thick F is thin)
Open or closed coat abbrasives
What is the difference between open and closed grit sandpaper?
how much of the surface area is covered with abrasive grains.
Open coat abrasives are less densely packed with grains compared to closed coat abrasives.
Open coat abrasives are better for sanding softer materials like cedar, pine, aluminum, and brass.
Closed coat abrasives are better suited to sand harder materials like oak, hickory, and steel.
Choosing the right sandpaper?
A: heavy sanding and stripping
B: smoothing surfaces and removing small imperfections
C: to finish surfaces smoothly
D: painted surfaces, requiring sanding between coats
A: coarse sandpaper grit measuring
40- to 60-grit
B: choose medium sandpaper from
80- to 120-grit sandpaper.
C: use a super fine sandpaper with
400- to 600-grit
D: 220X ( x is grit)
When using a router, the bit will pull itself into the cut if you travel
From left to right
When routing the outside edges of a frame or a panel, move the router in a counter-clockwise direction.
If you are using the router on an inside opening, move the router in a clockwise direction.
On a router table you move the stock rather than the router, which is suspended upside down under the table
When looking straight down at the top of a router, the bit rotated in which direction?
When looking straight down at the top of a router, the bit rotates in a clockwise direction.
That means you should move the router from left to right, but—and this is important—that’s only true when the router is positioned in the middle between you and the workpiece
Ex if you are routering out a window
If it is an electrical box ( routering out the outside) would be right to left
If a table saw coasts for only a short time after it is turned off, the problem could be?
The belts are too tight
To check that the table saw’s rip fence is parallel to the saw blade, you should align the fence with the
Edge of the machine mitre groove
To cut a blind dado on a table saw requires
A: one stop block
B: Two stop blocks
C: antikickback fingers
D: the splitter bar
B: Two stop blocks
There are ___ types of Dados and a_____?
3 types of dados and a rabbet
Through, stopped and blind
1: Through
The through dado joint is the most common type of dado joint and involves cutting a groove that spans the entire width of the workpiece.
2: Stopped dado
A stopped dado joint, as the name suggests, is a groove that does not extend across the full width of the workpiece. Instead, it stops before reaching the edge.
3: Blind dado (half dado)
Rabbet
A rabbet joint has a groove or dado cut along the wood edge or end, so when the second wood piece is fit into the groove, the long side is flush
A compound mitre is accomplished on a radial-arm saw by tilting the motor and
Swinging the radial arm
The purpose of blade supports on a band saw is to
Prevent the blade from being pushed off the wheels
When you change a band saw blade, you should apply the correct tension only after you have
Adjusted the tracking
In regards to band saw
The most dangerous place to stand is?
Directly beside it
When you change a band saw blade, you should apply the correct tension only after you have
Adjusted the tracking
The guid pins are moved toward the front of the band saw blade until they are
Just behind the gullets
When you change the blade on a band saw, you must watch that you don’t install the blade with the teeth
Upside down
When cutting a mortise with a drill press, the mortise chisel may creep sideways if you attempt to cut
With only three sides touching the wood
A mortise is for drilling a square hole
Drill speed on a drill press
A: hardwoods
B: softwood
C: big holes
A: slowly
B: fast is ok
c: slowly
Surface treatment:
The table and column of a woodworking shop drill press should be kept lubricated with a film of
Paste wax ( turtle wax)
This deals with the surface
Also applies to the surface of a table saw, or a jointer/planer
For lubricating tools, you would use graphite
If the quill of a drill press will not return to its uppermost position, you should
Adjust the return spring
A large twist drill cuts a cleaner hole in wood if the bit is sharpened like a ?
Like a spur bit
The narrowest stick that can be edge jointed safely on a jointer is
20mm wide
Jointer:
Where should the outfeed table be in relation to the blade
Perfectly level
Basic function of a jointer
Used to straighten a board
Takes a crooked board and makes it straight
Note: Never adjust the outfeed table
When starting a cut for a taper, the front of the stick must be resting on the
Rear table
On a jointer, the depth of cut is controlled by adjusting
The infeed table
Never adjust the outfeed table
When using a thickness planer and the cutter stalls, the first thing to do is
Turn off the power
Why would this ?
The depth is too much
The surface wasn’t prepared
If stock sticks or hesitates in the planer, the probable cause is
The pressure bar is set too low
The thickness of planed lumber as it leaves a planer is determined by the
Elevating handwheel
To keep sandpaper and your work from overheating you should
Keep the work moving
Also sand with the grain
Material removed is against the grain
To check the platen on a belt sander, you must first remove
The sanding belt
Final sanding of wood that will be stained is fine with grit as coarse as
400 grit
The smallest angle reading on most transits used by building contractors is
20 seconds
The formula to find the height of an object relative to the theodolites position is
Tangent x distance = height
Framed walls are squared by aligning their plates and then
Making their diagonals equal
How long should studs be if the wall is to be covered with paneling 2800mm high and the ceiling is to have a finish of 15mm thick
Order of operation
Do the ceiling first
add it to the panel length to get the total height
2800+ 15
Studs are 38mm thick and there are always three plates ( 2top 1 bottom)=114
Subtract the plates from the total height
2815-114= 2701
The main purpose for staggered stud-wall construction is to
Reduce the noise from one room to another
CODE:
A: If a window rough opening is to be 1200mm (48”) wide, the length of that lintel will be
B: If a window rough opening is to be 1200mm (118”)wide, the length of that lintel will be
A: 1276mm (51”)
2 cripple widths
B: 1352mm (114”)
4 cripple widths
CODE: 9.23.10.6
If more than 3m (9ft)
need two cripples 1 long studs
The line length of the supporting valley rafter is the same as the
Major hip rafter
For the edge cut off the sheathing to fit the valley or hip, the numbers to use on the framing square are the
Length per unit of run for the common and the unit of rise
The run of a hip-Jack rafter will always equal its
Distance from the corner of the building
The shortening for all Jack rafters framed to the hip or valley are
One half the diagonal thickness of the hip or valley
An angle newel will be found only on stairs which
Turn a corner
Starting newel - 4”
Turning angle newel 5”
CODE
The minimum headroom requirement for all stairs is
CODE: 9.8.2.2
2.0m
If finished flooring will be added to the lower floor after the notched stair stringers will be installed, the carpenters must
A: reduce the bottom rise by the tread thickness
B: add the finish floor thickness to the bottom riser
The BC building code requires that the sum of two risers plus one run for any stair add up to no less than
550mm
21 1/2 “
CODE
In residential construction, a handrail is required on BOTH sides of a stair if the stair is
CODE: 9.8 handrails
Wider than 1100 mm
CODE
The attachment points for a handrail must not
CODE
9.8.7.7
Break one’s handhold
CODE
The minimum effective depth for notched stair stringers is
90mm
The 45 degree angle between the bottom corner of the stair treads and the bottom of the stringers
Qu 269
Carpentry refresher test reference
CODE: 9.8.9.4.
Wooden Stair Stringers. 1) Wooden stair stringers shall. a) have a minimum effective depth of 90 mm, measured perpendicularly to the bottom of the …
CODE
A balcony railing inside a single family dwelling must be at least
900mm high
36”
CODE
Hinges and strike plates must have at least two screws in each that penetrate into the solid wood framing by at least
25mm
1”
What is placed over the top of sliding glass doors or windows to prevent their removal
Screws or bolts
Regulations governing the security of the occupants dwelling units in British Columbia are set by the
British Columbia Building Code
CODE
The space between the exterior door jamb and the door-rough opening must be blocked
At the lock height on each side of the jamb
CODE
When more than one smoke alarm is installed in a new dwelling unit, the alarms must be wired so that
All will sound when one is activated
The type of roofing material that is cut smooth on one side and may be rough on the other is called
Resawn shakes
How much does the lead valley run up the roof
12” beyond the centre
Explain the difference between an open and a closed valley
Open valley:
• Consist of a metal valley pan (flashing) between “open” ends of shingle runs on either side
• Highest water-shedding ability
• Usually more expensive to install because of metal cost
• Protected from degrading over time due to no risk of granule loss on the shingles
Closed valley:
• Created by running the shingles from one slope underneath those from the adjacent slope
• Acceptable water-shedding ability
• Usually cheaper to install
• Subject to degrading over time due to granule loss where shingles overlap or where water runs along valley
CODE
Eaves protection must extend inside the inner face of the exterior walls by
300mm
One foot
Why:
Has to do with ice damage
The heat from inside the house will melt snow directly above it faster than the snow on the outside edge over the eaves
This means that there will be a little snow barrier at the edge and the ice and water will creep upward
CODE
The minimum side lap on wood shingles or shakes is
38mm - 40mm
CODE
The bottom edge of wood or shake Internet should be placed at a distance above the butt edge of the shake equal to _____ times the exposure
Two
CODE
Roof flashing should extend up a framed wall not less than
75mm
Appx 3”
Step flashing requires a piece of flashing for ____
For each layer of roofing
What type of door is secured by a pin and bracket at the top and bottom
Bifold
What keeps the door frame from moving while the bricks or concrete blocks are placed around it
Bracing
How much wider than the size of the door should you make the rough opening for an exterior door
2-2 1/2” for the module
But should think of it as either
2 or 2 1/2 inches
Hinges on an exterior door are located at ______ from the top; ______ from the bottom, and centred between the two
7” from the top
11” from the bottom
180mm; 280mm
The windows with a sash hinges at the sides is
A casement window
CODE
Vinyl and aluminum siding should be installed with gaps left for expansion. These gaps should be at least
6mm wide in warm weather and 12mm in cold weather
CODE
The minimum overlap for wood bevel siding is
25mm
To ensure that vinyl siding does not damage the corner post or warp as it expands, it is nailed
Loosely in the MIDDLE of the slots
CODE
Decks using spaced decking should have flashing placed between
The building and the ledger
The best nails to use for fastening lumber to deck surfaces are
Galvanized
The lumber species most commonly used for interior wall finishes in BC is
Red cedar
The moulding that it’s sometimes added to the top of the baseboard is
Base cap
The mould covering the joint between the baseboard and the floor is
The shoe mould
Material used to support interior plastered surfaces is called
Lath
CODE
When gypsum board is double nailed to wall framing members spaced 400 mm o/c, each part of nails should be spaced apart no more than
300mm
What is the size of the rabbet on an overlay door
10mm x 10mm
3/8” x 3/8”
CODE
In rectangular wall cabinets, how thick is the component that attaches to the wall
19mm
3/4”
