Carpentry & Building Construction Flashcards
Using a 1/4” scale, what does 3 1/2” represent?
14 feet
On a blueprint, lines that terminate with arrows are:
Dimension lines
Which blueprint page shows the building with boundaries?
Plot or site plan
Which blueprint page shows window and door placement?
Floor plan
Which page of the blueprint shows the external views of the structure?
Elevation
What part of the blueprint designates the brand and model number of a window?
Window schedule
The difference in elevation between the basement and the first floor is 9’4”. The top tread is a full tread, how many treads will the stairs have?
15
If the sheet of plywood has a 32/16 panel identification index, it may be used as a floor decking with a maximum span of?
16” inches
Concrete is made of what four parts?
Cement, sand, gravel, and water
What material impacts the strength of concrete the most?
Aggregate
In order to slow set up, what would be added to the concrete?
Retarding admixture
What is added to concrete to control strength, durability and watertightness?
Water
The wetter the concrete, the:
Greater the slump
The best way to remove air from concrete:
Vibrate
How thick is a #5 rebar?
5/8”
Which tool measures horizontal angles only?
Builders or dumpy level
When laying out a building, what do you use as a starting point?
Benchmark
If the layout for a rectangular building is square, then which is true?
The diagonals are equal
You do not install batter boards until:
The grading corners have been stablished
If the run of the standard rafter is 12’, what is the run of the king hip?
17’ Feet
The first board of tongue and groove flooring should be installed how many inches from the frame wall and which side of the board should face the wall?
1/2” inch, groove
What is the minimum distance batter boards can be placed from the point of excavation?
4’ Feet
What does the top of the batter board represent?
The height of the foundation wall
In surveying, if rod “A” reads 5’ and rod “B” reads 5’ 6”, then:
groundbpoint “A” is 6” higher than groundpoint “B”
What is the formula for estimating the excavation material volume in cubic yards?
L x W x D / 27
Footings do not directly support:
Lintels
The sides of footings are molded by boards referred to as:
Haunch boards
What is used to hold foundation wall forms together?
Snap ties
What is used over window and door openings in a concrete block wall?
Lintel
A standard mortar joint in block construction is how wide?
3/8” inch
The typical exposure while using roll roofing is how many inches?
17” inches
What is the nominal size of a standard block?
8” x 8” x 16”
Unused mortar should be discarded after:
2 1/2 hours
When lumber dries, it tends to shrink:
More in width than length
When a piece of lumber is cut along the natural age ring, it is called:
Ring Shake
The curve or camber on glulam beams should be:
Placed up or on top
What is the minimum quality of plywood that can be used for a concrete form?
B - B
Horizontal members that carry the heaviest load of attached horizontal members are called:
Girders
Subfloor plywood underlayment spacing is:
1/8” on ends and sides
The main support under a wood deck is called a:
Girder
A built-up girder should have how many inches clearance between the end of the girder and the masonry in a masonry pocket?
1/2” inch
The standard height of an interior door is:
6’ 8”
The correct order for hanging a bifold door is:
Top track first, then fasten the lower track to the floor directly under the top track
What is the door hinge size for a 1 3/8” interior door?
3 1/2” x 3 1/2”
Door installations call for installing the door stop:
Lock side first
The proper installation of drip edge calls for it to be installed:
Under the underlayment at the eaves, but over the underlayment at the rake
How many bundles of shingles are there in a square of 3 tab shingles?
3
What is the strip nailed to the end of the rafter?
Fascia
When installing plywood soffit, nails should be installed how far apart?
6” apart
Metal gutters are attached to the:
Fascia
Gutter splash blocks should be at least how long?
3’ long
Siding boards cut during installation should be treated with:
Water repellant
What should be installed between the foundation and the brick at finish grade?
Flashing
A third stair stringer should be installed when stairs exceed what width?
2’ 6”
How long should the screws be to fasten 3/4” thick cabinets to studs covered with 1/2” drywall?
2 1/4”
When installing three tab shingles, no nails should be placed within how many inches of a valley?
6” inches
When using roll roofing, the strip should be nailed so that it overhangs the edge by a minimum of:
1/4” inch
A stair stringer must have ______ inches remaining after it has been notched.
3 1/2” inches
In constructing a stack bond pattern block wall, what additional step is required that is NOT needed with a common bond wall?
Joint reinforcement must be added to every second course
A contractor is building a 40’ x 24’ single story house with a 6/12 straight gable roof and 96” from sole plate to top plate. How many 4’ x 8’ sheets of wall sheathing are required? Do not deduct openings or add waste.
— 37
37
What angle does the valley rafter form with the main ridge board in a roof of uniform pitch?
45 degrees
All of the following are part of an exterior frame wall EXCEPT:
Bridging
A contractor is installing wall cabinets in a new home built with 2 x 6 studs. Some of the cabinets span only a single stud. How are the cabinets attached?
With two #10 screws into the single stud and at least two 3/16” x 3 1/2” toggle bolts through the drywall
An 18’ long, 2” x 4” fir stud wall has double top plates, a single bottom plate and fourteen 8’ studs. Fir costs $520 per thousand board feet. How much does the lumber for this wall costs? Do not allow for waste.
$59
Carpentry Page 63 Board feet calculation is on page 63. Number of pieces X thickness (inches) X width (inches) X length (feet) all divided by 12 18 x 3 = 54 54/8 = 6.75 = number of pieces for top and bottom plates (round up to 7 pieces) 14 studs So 21 pieces total 21 x 2 x 4 x 8 = 1344 1344/12 = 112 board feet total 1000 (board feet for pricing) / 112 (actual board feet) = 8.93 $520 (cost per 1000 bf) / 8.93 = $58.23 OR $520 / 1000 = $0.52 per board foot x 112 = $58.24
The plans for a family room call for 12” x 24” acoustical ceiling tiles glued in place over gypsum board. The room is 13’ 6” x 18’ 6”. What size border tile are needed for the short wall?
6” inches
When precise information is needed about a small or complex portion of the building, what would you look for on the plan?
A detail section
How many board feet are in a 2 x 4 x 12?
8
What type of door consists of stiles and rails?
Raised panel door
Radiating stair treads are also known as:
Winders
What is the horizontal length of a stairway called?
Total run
How tall is a kitchen base cabinet?
34 1/2” inches
How deep is a kitchen base cabinet?
24” inches
How deep is a kitchen wall cabinet?
12” inches
When installing insulation, how should the vapor barrier be installed?
To the warm side of the house
How long should wood flooring be stored in the building in which it is going to be installed to allow for proper acclimation?
4 days
What type of product is used as a base for tile and shower stalls?
Backerboard
How do you calculate cubic feet?
Length in feet x width in feet x thickness in feet
How do you calculate cubic yards?
Length in feet x width in feet x thickness in feet, divided by 27
One square of 235 lb shingles will cover how many square feet and weigh how much?
100 sq feet, 235 lbs
If you have sixteen 2X6 boards that are 8 foot long how many board feet do you have?
128 Board Feet
A tool that can be used to cut crescent shaped grooves into the edge of molding to form a joint?
Plate or Biscuit Joiner
What is a leveling rod used to measure?
The difference in elevation between two points
When surveying, 2 degrees of measurement would equal?
120 Minutes
What would the diagonal measurement be on rectangle building that is 60 foot wide by 80 foot long?
— 100 feet
A widened base that supports foundation walls is a?
Footing
Before you backfill a concrete wall you must?
Dampproof the wall
In constructing a stack bond pattern block wall, what additional step is required that is NOT needed with a common bond wall?
Joint reinforcement must be added to every second course
How many 8X8X16 concrete blocks would be needed on a 800 square foot wall?
880 blocks
How much mortar would be required for a 600 square foot wall using 8X8X16 concrete blocks?
— 19.5 Cu. Foot
What type of wood has the lowest resistance to decay?
Untreated Sapwood
What does OSB stand for?
Oriented-Strand-board
Glulam (Glue-Laminated) beams should not be _______ or _______ unless they were designed to be:
Notched or Drilled
What type of wall is designed to add strength to a house?
— Shear Wall
How long is a 16d nail?
3.5 inch
What part of a joist may not be notched?
The middle 1/3
How many sheets of 4’ X 8’ plywood are required to cover a room that is 8’ wide by 24’ long and 12’ high?
24 Sheets
Fireblocking may be required if a wall is over _____ high?
10’ Feet
The unit run measurement for a rafter that is attached to the ridge at a 90 degree angle is?
12” inches
The unit run measurement for a rafter that is attached to the ridge at a 45 degree angle is?
17” inches
The ends of all ceiling joist must rest on no less than?
1.5” bearing on wood framing, or 3” if bearing in masonry
A triangle shaped truss with “W” bracing is called?
Fink Truss
If the run of the standard rafter is 12’, what is the run of the king hip?
17’ Feet
When installing roof sheathing nail spacing at the edge of the panel should be spaced?
6” Inches
A door that is hinged on the right side and opens out is a?
Right hand door
For roll roofing, roll paper endlaps should be offset by how many inches?
6” inches
On a roof, what is the strip nailed to the end of the rafter?
Fascia
If plywood is used as an exterior wall covering?
Sheathing is not required
What type of insulation is thick and pre-cut to fit in-between framing members?
Batt
Drywall that is used in bathrooms or high moisture areas?
MR (Green Board)
Veneer plaster is applied to what type of drywall, which has an absorbent face?
Blue board (gypsum base)
The last large construction operation in a home is what?
Installing of a finished floor
Housewraps have high-density polyethylene fibers that allow _______ to pass through but not ________?
Vapors can pass but not water
The measure of a materials ability to resist heat transmission?
R Value
Nail pops are greatly reduced if the moisture content of the framing is less than ____ at the time the drywall is installed?
19%
What is the drying time of joint compound if the temperature is 80 degrees and the relative humidity is 60%?
13.5 hours
What influence do below freezing temperatures have curing concrete?
A longer time is needed
In concrete work, a welded wire matt is placed where and for what reason?
Placed in the upper part of the slab to prevent cracks from opening
Where are floor joist doubled when using a 1/2 inch subfloor?
Where a partition is to run parallel to the floor joist
An enclosed area measuring 12’ x 16’ x 8’ high will need 1/2 inch plywood floor decking. An enclosed area measuring 16 x 16 x 8’ high will need 3/4 inch plywood floor decking. The costs are $12 per sheet for half inch plywood and $20 per sheet for the 3/4 inch plywood. What is the total cost for all the plywood?
Between $225 and $250
What is a ledger?
The length of lumber that connects a deck to a house
How should a wood door jamb be installed?
So the outer edges are flush with the finished wall
What is used to fasten formed metal gutters to fascia?
Wrap around hangers
How many straps are necessary to attach a gutter downspout
2 Straps
What is the common thickness of load bearing walls
18G and 29G
When does condensation form?
Warm air hits a cool surface
Finish flooring should be installed immediately after the completion of what procedure?
All other work, except final interior trim
