Carpentry Exam #3

Question 1

How much concrete is required for a slab measuring 
36 ft. × 26 ft. × 12 in.? 
a. 864u. Yd 
b. 328. Yd 
c. 49.38 cu. yd. 
d. 34.67 cu. Yd

Answer 1

d. 34.67 cu. Yd

Question 2

What defines the stringer for a circular stair?
a. The slope and run of both stringers are the same.
b. The slope of both stringers are the same.
c. The slope of the inside stringer is greater than the slope of the outside
stringer.
d. The slope of the outside stringer is greater than the slope of the inside
stringer.

Answer 2

c. The slope of the inside stringer is greater than the slope of the outside
stringer.

Question 3

In preparation for building the first floor of a residence, location of the
stairwell is critical. How can this be done accurately and properly for each house?
a. Check both the blueprints and the manufacturer’s detail and build on site
b. Find the measurements on the blueprints and build on site.
c. Check the blueprints and manufacturer’s details relative to actual site
location of pads and strip footings before building.
d. Find the measurements on a manufacturer’s floor detail and build on site

Answer 3

c. Check the blueprints and manufacturer’s details relative to actual site
location of pads and strip footings before building

Question 4

What is the theoretical line length of a common rafter for a gable dormer
roof with a total span of 3 810 mm with a 1:2 slope ratio roof?
a. 2 130 mm
b. 4 241 mm
c. 4 260 mm
d. 2 111 mm

Answer 4

a. 2 130 mm

Question 5

The front setback on a garage is 5 791 mm and the slope from the top of
garage slab to the sidewalk is to be 5%. The top of the 102 mm garage slab
is located 203 mm below the top of the foundation wall, at the front of the
garage. What will be the depth of the buck, and what is to be the
difference in height from the front sidewalk to the top of the garage
foundation wall?
a. 305 mm bucks and 492 mm of height change.
b. 203 mm bucks and 289 mm of height change.
c. 203 mm bucks and 492 mm of height change.
d. 305 mm bucks and 289 mm of height change.

Answer 5

a. 305 mm bucks and 492 mm of height change.

Question 6

What should be done when forming in order to prevent discoloring of
concrete at column corners?
a. Make sure corners have extra release agent.
b. Install a cove strip in the form corners.
c. Ensure tight fitting column corners.
d. Install chamfer strips in the form corners.

Answer 6

d. Install chamfer strips in the form corners.

Question 7

What should be done when forming in order to prevent discoloring of
concrete at column corners?
a. Make sure corners have extra release agent.
b. Install a cove strip in the form corners.
c. Ensure tight fitting column corners.
d. Install chamfer strips in the form corners.

Answer 7

d. Install chamfer strips in the form corners.

Question 8

What is a tag line?

a. A line attached to the fly forms to keep them from spinning.
b. A line attached to the workers so they cannot fall off a floor slab.
c. A line attached to the fly form so it can be pulled horizontally to the edge of the building for lifting to the next floor.
d. A line attached to the fly form to keep it from falling if the crane cable fails.

Answer 8

a. A line attached to the fly forms to keep them from spinning

Question 9

How should the template be placed when gaining hinges with a router
template?
a. 1/8” higher on jamb than door
b. 1/8” lower on jamb than door.
c. Equal distance down on door and jamb.
d. 1/8” lower on door than on jamb.

Answer 9

b. 1/8” lower on jamb than door.

Question 10

What should be done to prevent the build-up of moisture between a rain
screen type cladding and the outside face of the wall?
a. Seal continuously to insure no water can get in.
b. Provide a secondary drainage plane and weep holes.
c. Install vertically so water will run off without penetrating.
d. Provide drainage holes every 4’

Answer 10

b. Provide a secondary drainage plane and weep holes.

Question 11

What substrate is required to install a ceramic tile floor in a bathroom?

a. Install a minimum ½” plywood underlay.
b. Install a minimum ½” particle board.
c. Install ¼” ‘silvaplyulay’ underlay.
d. Flood with self leveling cement to insure a smooth, flat surface to work on

Answer 11

a. Install a minimum ½” plywood underlay.

Question 12

What is the inside spindle spacing if the newel posts are 5’ 4” apart (inbetween) and the spindles are 11⁄16” wide?

a. 4 5/8
b. 3 ½
c. 4 9/16
d. 4”

Answer 12

d. 4”

Question 13

When isolating the bottom plate from the concrete, what should be placed 
on top of a concrete foundation wall?
a. Continuous bead of caulking. 
b. 1" of rigid insulation. 
c. Filler strip. 
d. Sill gasket.

Answer 13

d. Sill gasket.

Question 14

In the structural blue prints, which takes precedence if a discrepancy is 
found? 
a. Shop drawings. 
b. Building section. 
c. Section view. 
d. Detail drawings.

Answer 14

a. Shop drawings.

Question 15

What is the maximum volume of water this tank can hold if its fill line is
¾ the distance from the bottom of the tank on a cylindrical water storage tank has 12¼” thick walls and an outside diameter of 27’ 8¼”. It is 13’ 1½”
deep?
a. 5 500 cubic feet
b. 5 088 cubic feet
c. 2 115 cubic feet
d. 1 696 cubic feet

Answer 15

b. 5 088 cubic feet

Question 16

What is the minimum length of ladder required to climb 2.532 m 
vertically to another floor? 
a. 3.7m 
b. 4.0m 
c. 2.8m 
d. 3.5m

Answer 16

a. 3.7m

Question 17

During the driving procedure what should be installed to protect the butt 
of a wood pile brooming? 
a. Metal point. 
b. Pile shoe. 
c. Pile ring. 
d. Rubber cap.

Answer 17

c. Pile ring.

Question 18

What procedure should be used so the inverted stringers can be easily
attached when pouring wing walls that will house a closed concrete stair?
a. Set threaded inserts into concrete in specified locations for attachment.
b. Set ready rod ties in concrete in specified locations for attachment.
c. Use explosive actuated tools to attach inverted stringers because there is less chance for error of attachment locations.
d. Set taper ties into concrete in specified locations for attachment because they can be removed and filled with grout later

Answer 18

a. Set threaded inserts into concrete in specified locations for attachment.

Question 19

What must be confirmed before lifting panels and attaching bracing on pre-cast and tilt-up structures, temporary bracing can be attached to
inserts in the member itself and a ground member?
a. The inserts are pre-cast and concrete has achieved its seven day design strength.
b. The proper inserts are installed correctly and concrete is strong enough
c. The proper inserts are used and concrete is strong enough.
d. Concrete has achieved its seven day design strength and then inserts installed.

Answer 19

b. The proper inserts are installed correctly and concrete is strong enough

Question 20

What is the length of the header required for a window if the final
window size from outside of jamb to outside of jamb is 32¾”?
a. 36¾”
b. 32½”
c. 38¾”
d. 35 ½ “

Answer 20

a. 36¾”

Question 21

An exterior door is installed in a rough opening and the top corner on the strike side does not close tight to the weather-stripping. How is this
corrected?
a. Shim behind the brick mould at the top on the hinge side.
b. Shim behind the brick mould at the bottom of the strike side.
c. Shim behind the brick mould at the bottom on the hinge side and at the
top on the strike side.
d. Shim behind the brick mould at the bottom on the strike side and at the
top on the hinge side

Answer 21

d. Shim behind the brick mould at the bottom on the strike side and at the
top on the hinge side.

Question 22

The minimum ventilation required with openings to the exterior for an
insulated roof space is?
a. 1/300 of the insulated ceiling space.
b. 1/400 of the insulated ceiling space.
c. 1/500 of the insulated ceiling space.
d. 1/200 of the insulated ceiling space.

Answer 22

a. 1/300 of the insulated ceiling space.

Question 23

What is the best solution for the problem when a stair using the
maximum rise and the minimum run is too long for an existing rough
opening?
a. Cut out the header and rebuild the R.O. to suit.
b. Install a set of winders.
c. Decrease the tread size by shortening the nosing just enough to clear the
headroom.
d. Increase the riser height to steepen the stair just enough to clear the
headroom.

Answer 23

b. Install a set of winders.

Question 24

When forming post tensioned suspended slabs and installing the reinforcement, what procedure is used?
a. Set the regular reinforcing steel before post tensioning tendons.
b. Set the chairs for post tensioning tendons at so that they remain in the
tension third of the slab.
c. Set the chairs for post tensioning tendons so that they are all at the same height (top third of the slab).
d. Set the mechanical sleeves and inserts before post tensioning tendons.

Answer 24

b. Set the chairs for post tensioning tendons at so that they remain in the
tension third of the slab.

Question 25

To ensure an accurate reading of an unknown elevation, what procedure
is used?
a. Start by taking a reading on the benchmark,
then take the reading on the unknown elevation, turn level and take the reading at the benchmark to confirm elevation.
b. Start by taking a reading on the benchmark then take the reading on the unknown elevation, move level and take both reading again to confirm elevation.
c. Start the reading by placing the builders level on the benchmark, then take the reading of the unknown elevation.
d. Start the reading by placing the rod on the unknown elevation and work back to the benchmark.

Answer 25

a. Start by taking a reading on the benchmark then take the reading on the
unknown elevation, turn level and take the reading at the benchmark to
confirm elevation.

Question 26

What else should be done in the snap tie system of forming, the wedges
should be placed at a slight angle to increase their bearing on the
structural forming members?
a. They should be hammered snug and tacked with two duplex nails to
prevent dislodging.
b. The wedges should be hammered as tight as possible and tacked with two
duplex nails to prevent dislodging.
c. They should be nailed with two duplex nails and the large hole up to
prevent dislodging and make stripping easier.
d. They should be nailed with two duplex nails and the large hole down to
prevent dislodging and make stripping easier.

Answer 26

a. They should be hammered snug and tacked with two duplex nails to
prevent dislodging.

Question 27

What mathematical processes must occur so that slab is poured at correct height when setting up shoring for a suspended slab?

a. Height of shore plus depth of joist plus thickness of formply plus thickness of slab equals top of pour.
b. Height of shore plus depth of stringer plus depth of joist plus thickness of formply plus thickness of slab equals top of pour.
c. Height of shore plus depth of joist plus thickness of formply equals bottom of pour
d. Height of shore plus depth of stringer plus depth of joist plus thickness of formply equals top of pour.

Answer 27

b. Height of shore plus depth of stringer plus depth of joist plus thickness of
formply plus thickness of slab equals top of pour

Question 28

How can the riser face be repositioned if lateral deflections have taken
place when pouring a concrete stair?
a. By removing the concrete to allow the form to spring back into place, then replacing the concrete a little at a time.
b. By using an inverted stringer, wedging the riser stock slightly back beyond straightness and then continuing to pour.
c. By adding some water to the concrete and continuing to pour at a slower rate.
d. By repositioning the ends of the riser stock to align with the bowed section.

Answer 28

b. By using an inverted stringer, wedging the riser stock slightly back
beyond straightness and then continuing to pour.

Question 29

What is one critical step to ensure proper curing of concrete?

a. Place a polyethylene barrier on the ground and wet it before concrete placement.
b. Place a polyethylene sheet immediately on top of the freshly finished concrete so it does not have a chance to dry out.
c. Place dry burlap on top of the freshly finished concrete and spray it with water an hour later so the concrete can begin to set up.
d. Place a polyethylene barrier on the ground before concrete placement.

Answer 29

d. Place a polyethylene barrier on the ground before concrete placement.

Question 30

What information is required to fasten the two double joists carrying the
stair headers when framing an engineered floor system for a residential
house?
a. Check with the framing foreman who knows the proper nailing specs and
fasten accordingly.
b. Check the specs on the blueprints and fasten accordingly.
c. Check the specs on the manufacturer’s drawings and fasten accordingly.
d. Check the nailing specs in section 9 of the Canadian Building Code and
fasten accordingly.

Answer 30

c. Check the specs on the manufacturer’s drawings and fasten accordingly.

Question 31

Which figures should be used on the framing square to lay out the cross
bridging fro 2”x 10” floor joists spaced 16” on centre?
a. 11” and 12½”
b. 10” and 18”
c. 8¼” and 16”
d. 8½” and 14½”

Answer 31

d. 8½” and 14½”

Question 32

What is the theoretical line length of the third gable and stud framed 16”
on centre from the corner on a roof with 8:12 slope?
a. 3’ 811/16”
b. 6’ 123/8”
c. 2’ 8”
d. 3’ 69/16”

Answer 32

c. 2’ 8”

Question 33

What is the length of the cutout when building a mortising jig for a 3½” x
3½” butt hinge?
a. 3½” + the diameter of the guide bushing.
b. 3½” + ½ the diameter of the guide bushing.
c. 3½” + the difference in diameter of the router bit and the guide bushing
d. 3½” + ½ the difference in the diameter of the router bit and the guide
bushing

Answer 33

c. 3½” + the difference in diameter of the router bit and the guide bushing

Question 34

If a finished window size (outside of jamb to outside of jamb) is 48” x 28”
and its center is located at 14’ 5” from the SE corner of a house, at what
mark from the SE corner will the window side of the closest trimmer be
located?
a. 12’ 4½”
b. 12’ 6½”
c. 12’ 8¼”
d. 12’ 5¼”

Answer 34

a. 12’ 4½”

Question 35

What happens to the design length on the given rafters if the minor span
is increased on an intersecting roof?
a. Both supporting valley rafters and supported valley rafters are
lengthened.
b. Supporting valley rafter remains the same, but it may or may not be
attached to the major ridge at the same location.
c. Supporting valley rafter stays the same because it remains attached to
the major ridge at the same point.
d. Supporting valley rafter lengthens but the supported valley rafter
remains the same because it is already supported.

Answer 35

b. Supporting valley rafter remains the same, but it may or may not be
attached to the major ridge at the same location.

Question 36

What procedure is used to keep the soffit the same for an unequal slope
roof with an equal overhang?
a. Raise the wall under the minor roof by the difference in height of ridges of the two roofs.
b. Raise the wall under the major roof by the difference in rise of the roofs over the run of the overhang.
c. Raise the ridge of the minor roof to the ridge of the major roof.
d. Raise the wall under the minor roof by the difference in rise of the roofs over the run of the overhang.

Answer 36

d. Raise the wall under the minor roof by the difference in rise of the roofs
over the run of the overhang.

Question 37

How are the joists installed when rafters are placed opposite each other
and ceiling joists are supported on a bearing wall?
a. Set on opposite sides of the rafters, lapped over the bearing wall, spaced with a block and nailed together.
b. Set on the same side of the rafters, lapped over the bearing wall and nailed together.
c. Be placed on the same side of the joists, butted together at the bearing wall and toe-nailed to the bearing wall.
d. Set on opposite sides of the rafters, lapped over the bearing wall and nailed together.

Answer 37

a. Set on opposite sides of the rafters, lapped over the bearing wall, spaced
with a block and nailed together.

Question 38

How is truss roof sheeting installed?
a. Remove all temporary bracing and sheet roof.
b. Install ridge blocking and permanent bracing then remove temporary
bracing as it gets in the way of the roof sheeting.
c. Install ridge blocking, all permanent bracing and remove temporary
bracing.
d. Install ridge blocking, sheet roof and remove temporary bracing as it gets
in the way of the sheeting then install the permanent bracing

Answer 38

b. Install ridge blocking and permanent bracing then remove temporary
bracing as it gets in the way of the roof sheeting

Question 39

How is a close cornice constructed?
a. Carrying the sloped soffit line of the gable to the horizontal fascia.
b. Cutting rafter tails flush with the building and lapping fascia over sheathing.
c. Sloping the soffit to match the roof slope and covering the wall to soffit
junction with a cornice molding.
d. Continuing the horizontal soffit line to the gable overhang and plumbing up to create a “pork chop”

Answer 39

b. Cutting rafter tails flush with the building and lapping fascia over
sheathing.

Question 40

What is the correct reason that fireplace interior walls are placed on an 
angle? 
a. directs smoke toward the chimney. 
b. saves on materials. 
c. increases the oxygen draft. 
d. radiates more heat.

Answer 40

d. radiates more heat.

Question 41

Which of the following is a neutral refractory material?

a. magnesia.
b. lime
c. carbon
d. alumina.

Answer 41

c. carbon

Question 42

Which of the following will a reinforcing steel erector insert grout in his 
post-tensioning system's sheaths? 
a. through the sheath openings. 
b. through the vents. 
c. through the latches. 
d. through the anchors.

Answer 42

b. through the vents.

Question 43

Which of the following is the main reason for blocking the inside of
vertical mullions on a multi-storey curtain wall at the level of the expansion
joints?
a. control heat losses.
b. improve the expansion joints’ resistance.
c. eliminate water infiltrations.
d. eliminate air circulation from one storey to another.

Answer 43

d. eliminate air circulation from one storey to another.

Question 44

Which of the following can prevent this problem when an aluminum door
rubs on the entire surface opposite the strap hinges?
a. replace the retaining plate and the strap hinges.
b. adjust the screw at the door head.
c. level the door on the side.
d. readjust the door frame.

Answer 44

a. replace the retaining plate and the strap hinges

Question 45

Which of the following operations is performed after applying glazing tape
during the installation of a glass panel with more than one pane of glass,
flush glazing?
a. inserting the glass in the rails.
b. make the finish joints.
c. fastening the upper rail.
d. placing setting blocks in the bottom rail.

Answer 45

b. make the finish joints.

Question 46

When a chief building official issues a Stop Work Order, the order is
effective from the time it is from which of the following?
a. posted on the site
b. delivered by a building inspector or an authorized person
c. made by the chief building official
d. served on the affected persons

Answer 46

a. posted on the site

Question 47

When a set of steps is provided for entry into and egress from a public
spa, the steps must be equipped with which of the following?
a. handrails on both sides
b. guard
c. handrail with a height of not less than 700 mm and not more than 1000
mm
d. handrail

Answer 47

d. handrail

Question 48

A high school with an occupancy load of 50 is provided with a fire alarm
system. Under the building code, which of the following areas do NOT require
fire detectors?
a. change rooms
b. elevator shafts
c. janitor’s rooms
d. classrooms

Answer 48

d. classrooms

Question 49

Which of the following are not required to be considered in the design of a footing?

a. dynamic loading
b. radon gas
c. hydrostatic uplift
d. permafrost

Answer 49

b. radon gas

Question 50

Which of the following items is not permitted in computer room floors of a
building required to be of non-combustible construction?
a. electrical transformers and main equipment control panel
b. computer data cables
c. optical fiber cables
d. electrical wires

Answer 50

a. electrical transformers and main equipment control panel