Interior Finish Test Flashcards
In the OBC what is the minimum tread run for a Residential (private) stair?
Not less than 210 mm or 8 11/16”
In the OBC what the maximum riser height for a residential (private) stair?
Not more than 210 mm or 8 1/14”
In the OBC what the maximum angle or inclination for a residential (private) stair?
45° with the horizontal.
What is the best choice of level when installing acoustical grid ceiling?
Laser level
What swing would doors with emergency exit hardware have?
Reverse Swing
What is the minimum throw of a 5 pin deadbolt?
25mm or 1”
How many 12”x12” ceiling tiles would be required in a 12’ - 4” x 14’ - 0” room?
182 tiles
What is the side member of a frame and panel door called?
Rail
What are the relief cuts on the back of the door jambs intended to prevent?
Cupping
What is the standard thickness of an interior residential hollow core door?
1 3/8”
What are the acceptable handrail heights according to OBC?
800mm - 965mm
What is leaving a 3/16” set back from the door casing to the inside face of the jamb called?
Reveal
When fastening a strike plate for a deadbolt, what is the minimum penetration of wood screws into solid wood?
30 mm
When trimming a traditional style double-hung window, what part is installed first?
Stool
Insulation installed on the inside of foundation walls shall extend from the underside of the sub floor to not less than _____ below the exterior grade.
OBC
600 mm
If the tread stock is 1 1/8” (29mm) thick and the lower finished floor is 3/4” (19 mm) thick, what would be the drop of the stringer if it were resting on the subfloor?
3/8” or 10mm
What is the usual location of a door knob on an interior residential door?
36” from the finished floor to the center of the door knob.
When screwing drywall to a wood framed wall with studs at 16” o.c. , what is the maximum distance apart that the screws can be along the supports, in the field.
OBC
400 mm
What is the minimum required headroom above stairs in a public building?
2050 mm
How is a housed stringer constructed?
The profile of the tread and riser ends routed out
How far beyond the the top and bottom of a stairway shall a handrail extend horizontally?
300 mm
What is the distance from the bottom of the door to the centre of the centre hinge What is the distance from the bottom of the door to the centre of the centre hinge?
Door height = 6’ 8” (2032 mm)
Hinge height = 3 ½”
Hinge location = 7” and 11” (180mm and 280 mm)
42” or 1066 mm
To trim a window measuring 2’ x 4’ with a mitered corners what is the most efficient use of trim?
2 pieces at 8’
How should a square notch out of a corner of a piece of a gypsum board?
Got one layout line with a drywall saw commas scored the other with a knife and snap
What will the thread run before a stair with 17 risers and a total of 13’-10” (4216 mm)?
10 3/7” or 264mm
- Which of the windows below does not have a hinged sash?
C. Horizontal slider
- What is the best method to cut the hole for a sink in a countertop?
B. Drill holes in the corners and cut with a jigsaw
- On a knockdown hollow metal door frame,how is the head jamb joined to the side jambs?
C. Tab and slots.
- What is the maximum vertical height of flight of stairs that can travel without the landing?
C. 3.7 M
- Is a total rise of a stairway when the framing members have the following dimensions?
Sub floor (lower floor ), 58 flat by wood or 16 mm
Single bottom played and double top plate.
1 ⅝” or 41 mm plate member.
Start link 92 ⅝” or 2353 mm
Joists (top floor), 11 ⅜” (289 mm)
Subfloor (top floor), ⅝” (16 mm) plywood.
Finish floor (lower floor), ⅛” (3 mm) vinyl tile.
Finnish floor (top floor), ¾” (19mm) T&G oak.
Answer : 110 ⅛” or 2797 mm
- What is the effective depth of a stringer?
C. The amount of stock left on the catch Stringer after you cut out the triangles
- What is the minimum thickness of drywall (gypsum) allowed on the ceiling running perpendicular to support at ?24” on centre?
B. 12.7 Mm
- A complete set of stairs has a landing located midway. There’s 16 in risers total in the stairs with a thread rise of 7” (178 mm) and a thread run of 10 ¼” (260 mm). What is the total run of the upper flight?
C. 82” or 20 mm
- Where is the headroom when the flight of stairs measured?
D. The vertical distance from anything overhead to align crossing the leading edges of the threads
- The following diagram shows a 15’ 10” wall with 5 - 20”x 40” windows evenly spaced. What is the on centre spacing of the windows from the far left side?
C. 25”, 35”, 35”, 35”, 35”, 25”
- Individual Winder treads turn through an angle of not less than:
C. 30ﾟ
- What is the correct order to install door hardware?
C. Hinges, strike, latch, knob
- When mounting a grab bar in a barrier-free shower, how far from the floor should be located?
A. 800 mm
43. What would be the length of the side jams using the following information: James rest on the finished floor Finish floor tick sickness ¾” (19mm) Door height 6’ 8” (2032 mm) Jamb Material ¾” (19 mm) thick Gap under door ⅝” (16mm) Gap between door and jamb ⅛” 3 mm) Head jamb rabbeted into side jambs Flash to top
Answer: B 81 1/2 inch Or 2070 mm
- Direction would placing a hinge shim toward the knuckle move the door?
A. Lock Jamb
- Barrier-free rams in commercial development should be sloped?
D. 1 in twelve
- What is the best sequence for installing these trim members?
A. Wayne Scott, baseboard, casing, chair rail
47.What is the standard distance between a kitchen counter top and underside of the underside cabinets?
B 18” or 457 mm
- Drywall screws must penetrate the wood stud by how much 1 hour fire rated wall?
?
- Length of the stairwell opening is 121 ½” (3086 mm), A track run is 9 ⅞”(250, the tread rise is 7 ¼” (184mm), the floor system thickness is done and a quarter quarter inch what would be the available headroom?
D 82” or 2086mm
- When installing a parquet flooring, how should the main layout reference line be established in a rectangular room?
C Find the midpoint of the long walls, connect them with the center line.
- When installing balusters on treads, where is the 1st short baluster position?
C Flush with the face of the riser
- If there isn’t a template, what is the best way to lay out a lock set so it can be drilled into a door?
A. Combination square and layout lines
- What is the first step when constructing a set of circular stairs?
A. Frame the inside walls
- What butts into a plinth block?
C. Door casing and Baseboard
- How far back from the wall is the 1st piece of 3/4 inch hardwood flooring placed?
D. 1 ¼”
- What should you do to fit one Finnish wood panel against another at an inside corner?
D .Mark panel with scriber, cut on the waste side of line, plane as needed to fit panel into position
- How should the vinyl base be secured to the wall?
A Adhesive
- Within a balustrade where is the new will post traditionally located?
B Centre of balusters
- When building a mortising jig for a 3 ½” x 3 and 3 ½” inch butt hinge, what is the length of the cut out?
B 3 ½” + ½” the difference in the diameter of the router bit and guide bushing.
- What is the proper method of gutting a minor on a countertop?
B Cut with a counter upside down using a straightedge and a circular saw.
- If you have to pull the door and back up to open it, what kind of swing is the door?
C Reverse swing
- How is the ingrain concealed when applying an apron while trimming a window?
CMitre corner and return into wall
- Agreed ceiling is to be stalled in a room measuring 20’x40’ and has a 30” bulkhead all around the perimeter,using 2’x2’ ceiling tiles how many linear feet of main T’s is required?
C. 245
- Is a cut stair’s Stringer is to extend to the subfloor, how much will the Stringer need to be dropped, using the following dimension: Total rise 84”, Thread Thickness 1”, Finish floor thickness ⅜”.
B ⅝”
- When cutting a hole in the drywall for an electrical outlet, which is the correct sequence?
C Cut drywall with rotary tool in clockwise direction
- Given rough stairwell opening width of 42” (1070 mm),finish wall thickness of ½”(12.5mm), a clearance of ⅛” (3mm) on each side of the stringers, stringer stock thickness of 1”(25mm), and a dado depth of ⅜” (9.5mm), what would be the length of the thread?
C 39.5” or 1008 mm
- What procedure should be used for constructing a balustrade on a finished stare?
D Cut newels, cut the handrails and feed the balusters
- What is the minimum size of landing in the dwelling?
A 860 mm
- What is used to protect the door from being damaged at the bottom?
D Flight
A circular stair with a when d1 80ﾟ stair arc has a total rise of 100” (2540 mm). Using a tread rise as close to 7” (178mm) as possible determine the number of degrees each thread travels through?
C 12.86ﾟ
77. With the same type of stair above and the same dimensions, determine what the thread width would be at the outside stringer if the radius to the inside Stringer was 6” (1829 mm),and stair width was 3” (914 mm) and nosing projection was 1” (25 mm).
C 27 ⅛” or 688mm
- When ceramic tiles maybe will be set on 20mm plywood or waferboard having all the edges supported by 38mm × 38mm blocking and 6 underlay, what is the maximum on centre spacing of the floor joists?
C 400 mm
- What is required for the fire rated suspended grid ceiling?
C 16 Gauge hanger wire to support the main tees.
- In the fire rated steel framed wall, how far down is the stud kept from the top track (runner)?
A. 6 mm
- When attaching wall mould to finish well for a suspended grid ceiling, where should you snap a chalk line?
C The underside of the wall mould
- How are the balusters attached to the handrail?
C Fasten bolsters into a groove in the handrail
