Construction Fundamentals: CFM 210 Final Questions and Answers, Exams of Social Sciences

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CFM 210 FINAL QUESTIONS AND ANSWERS

What is the minimum embedment for anchor bolts? - answers- 7" What is the farthest an anchor bolt can be from the end of a sill plate? - answers- 12" Whats the minimum number of anchor bolts needed in a single piece of sill plate? - answers- 2 Sill sealer is manufactured in how many foot rolls? - answers- 50' How many feet are in a sill sealer roll? - answers- 50' How do you calculate for rim joists? - answers- 1. Lf/order length of material How do you calculate floor joists? - answers- ex.

1. 16" o.c./12" = 1.333' (has to be in feet)
2. 1.333'/60' = 45
3. 45 +1 = 46
4. 462 = 92 floor joists How do you calculate blocking - answers- take the lf of one side and divide by joist length How many sqft are in a box of construction adhesive - answers- 1000 Calculate for construction adhesive? - answers- sqft of building/sqft per box and round up Or 1000/12 tubes per box = 83. 1800/83.33 = 21.6 or 22 tubes How do you calculate sub floor or floor sheathing? - answers- building sqft/32 sqft = ans Ans 1.1 = how many sheets are needed What is the name of the member which holds the header? - answers- trimmer stud What is the name of the member that is attached to the side of the header? - answers- king stud

The use of string lines and a spacer are a good way to straighten a wall? True or false - answers- true What is the correct way to square a wall prior to sheathing it? Nail the sheathing on then adjust wall. Mark the layout on top and bottom plate, add sheathing, then studs. Mark the layout on the bottom plate, add sheathing, then studs. Nail studs on layout marks, measure corner to corner, nail sheathing. Both a & b None of the above - answers- nail studs on layout marks, measure corner to corner, nail sheathing. Why would you use a double sill plate? - answers- it can help elevate the height of the ceiling and bring it closer to 96" How wide should a girder supporting the floor system be? - answers- the width of the column How far should you lap floor joist over a bearing point? - answers- at least the width of the beam What is required to be placed between the joist and the subfloor when assembling a wood floor system? - answers- adhesive Where is the rim joist located on the floor system? - answers- perpendicular to the direction of the joist. What is the standard length of bolt used in a 8" thick concrete foundation. (assume single sill plate) - answers- 10" How many sqft is a sheet of sub-floor? - answers- 32sqft How do you do joists span calculations? - answers- 1. Divide the height by 2

2. Find an appropriate spacing on the chart How do you calculate for sill plate material? - answers- 1.take the lineal footage required and divide it by the order length of the material (this number is given)
3. Take that answer and multiply by a 10% waste factor Ex. 30x60 building with 16' lengths

Lineal feet = 180 180/16 = 11. 11.25*1.1 = 12.375 or 13 How do you calculate sill sealer material? - answers- 1. Divide the lf by how many feet are in a roll which is 50 and then round up When is tempered glass required in a window or door? Within 18" of the floor. Within 24" of a door or exit. Where there is a slip hazard. All of the above A & c None of the above - answers- all of the above The reason tempered glass is used in construction, is it cannot be broken. True False - answers- false What is the most a bearing stud can be notched? 20% of stud width 25% of stud width 30% of stud width 35% of stud width 40% of stud width None of the above. - answers- 25% of stud width What is the most a single non bearing stud wall can be notched? 20% of the stud width. 25% of the stud width. 30% of the stud width. 35% of the stud width. 40% of the stud width. None of the above. - answers- 40% of the stud width. How close to the edge can you drill a hole in a stud according to code? 1/4" 3/8"" 7/16" 1/2" 9/16" 5/8" None of the above - answers- 5/8" A hole can be drilled in the same cross section as a notch on a stud?

True False - answers- false Double top plates are required in all wall construction. True False - answers- false Drilled holes cannot exceed what percent of a single stud width in a bearing wall? 30% 40% 50% 55% 60% None of the above - answers- 40% Drilled holes cannot exceed what percent of the stud width in a non-bearing wall? 20% 25% 30% 35% 40% None of the above - answers- none of the above What is the correct header size for a 3^0 x 6^8 door? 38" 39" 40" 41" 42" 43" None of the above. - answers- 41" What is the correct rough opening size for a standard 40 x 40 vinyl window? 48" 49" 50" 51" 52" 53" None of the above - answers- 48" What is the correct rough opening size for a 30 x 68 door? 36" 38" 40" 42"

43"

44"

None of the above - answers- 38" What is the correct header size for a 40 x 40 standard vinyl window? 48" 49" 50" 51" 52" 53" None of the above - answers- 51" What is the minimum number of nails required by code, to connect a stud to top and bottom plates? 2 4 6 8 10 12 None of the above - answers- 4 How do you determine the swing of a door using the hinge method? From the side where you cannot see the hinges. From the side where you can see the hinges. With your back to the door. The hand you grab the knob with. None of the above. - answers- from the side where you can see the hinges. You have a window labeled on the plan x o x. What does that mean? There are two fixed panes. There is one fixed pane. One pane operates. Two panes operate. A & c B & d None of the above - answers- b & d When calculating stairs, which object do you calculate first? Stringer Riser Tread Spacer Balaster

Knewel post 12/2 - answers- riser What is the name of the object that the treads and risers are attached to? Stringer Tread Riser Handrail Balaster - answers- stringer What is the minimum head clearance in a stairway? 83" 82" 81" 80" 79" 84" - answers- 80" According to the ibc, what is the minimum tread depth on a commercial set of stairs? 10" 10.5" 11" 11.5" 12" - answers- 11" According to the irc, what is minimum tread depth of a residential set of stairs? 10" 10.5" 11" 11.5" 12" - answers- 10" According to the ibc, what is the maximum rise allowed on a set of commercial stairs? 8.75" 8.5" 8.25"" 8" 7.5" 7" - answers- 7" According to the irc, what is the maximum rise allowed on a set of residential stairs?

8.75"

8.5"

8.25"

8"

7.75"

7.5"

7.25"

7" - answers- 7.75" When you add the unit rise and unit run together for a set of stairs, the sum should be between ____________ for comfortable design? 16 - 18 14 - 16 12 - 14 10 - 12 8.75- 10 - answers- 16 - 18 What is the spacing for balasters on a set of stairs? No more than 4" o.c. No more than 4" between No more than 3" o.c. No more than 3" between Less than 4" between - answers- less than 4" between According to the irc what is the minimum width, finish wall to finish wall, allowed residential stairs servicing 12 people or less? 37" 36" 38" 43" 44" 46 - answers- 36" According to the ibc what is the minimum width allowed, finish wall to finish wall, for a set of stairs commercial serviceing 50 or fewer in a building? 37" 36" 38" 43" 44" 46" None of the above - answers- 36"

In general, how many steps in transition will require a handrail in commercial? (do not consider the exclusions) 1 2 3 4 5 None of the above - answers- 1 How many steps in transition will require a handrail in residential construction? 1 2 3 4 5 None of the above - answers- 4 According to the code, how high must a guardrail be in commercial? 36" 38" 40" 42" None of the above - answers- 42" According to the ibc irc, at what distance in elevation change are you required to have a landing between floors? 10' 8' 12' 14' None of the above - answers- 12' How tall are 8' and 9' studs? - answers- 8 = 92 - 5/8" tall 9 = 104 - 5/8" tall What is lignin? - answers- wood glue Dry rot is a problem at what percent humidity? - answers- greater than 19% What woods can be placed on concrete? - answers- pressure treated Cyprus

Cedar Redwood What is a distinguishing feature of deciduous trees? - answers- their leaves drop Pith - answers- found at the center of the tree; takes up a large part of the stem Medulla - answers- wood rays - sheets or ribbons that extend vertically through the tree Cellulose - answers- wood cellulose makes up nearly 50% of woody plant mass Heartwood - answers- dead inner wood of the tree Sapwood - answers- where new growth takes place