Building Con Ch.7

Question 1

Heavy timber _ inches or more in smallest dimension

Answer 1

8

Question 2

Floor beams are

Answer 2

Joists

Question 3

Osb size

Answer 3

Fairly constant width to length ratio

Question 4

Lumber vs rough lumber

Answer 4

Lumber-wood sawn & planed

Rough- lumber left sawn 4 sides

Question 5

Stud sizes

Answer 5

2x4

2x6

Question 6

5 types wood frame buildings

Answer 6

Post and Frame
Balloon
Platform
Plank and beam
Truss

Question 7

Post and frame key points

Answer 7

Identifiable frame/skeleton
Mortise and tendon joints
Walls not structural/load bearing

Question 8

Chamfer

Answer 8

Cut corners off to retard combustion

Question 9

Balloon frame keynotes

Answer 9

Wall of ordinary studs nailed together

Universal method multi story to mid 20th century

Quick fire spread thru joist channels

Question 10

platform frame keynotes

Answer 10

first floor a platform
subfloor on joists
no continuity from top to bottom limits fire spread

Question 11

soffits

Answer 11

false spaces above cabinets connection between wall and joist spaces

Question 12

sill

Answer 12

rot and insect decay resistant layer laid on foundation

Question 13

spacing of floor joists

Answer 13

16 or 24 oc

Question 14

bridging

Answer 14

cross bracing between joists keep upright and share the load

Question 15

platform stud spaced

Answer 15

16 oc

Question 16

vary the slope of the roof

Answer 16

hips and valleys

Question 17

stairways framed using

Answer 17

stringers

Question 18

stringers support

Answer 18

risers and treads

Question 19

plank and beam keynotes

Answer 19

built with heavier beams
thick tongue/groove used flooring
reduced concealed space

Question 20

plank and beam concern

Answer 20

fire in high open spaces can spread rapid and develop huge volume

Question 21

lightweight trusses used since

Answer 21

1960s

Question 22

two things used to create a longer piece of dimensional lumber (trusses)

Answer 22

finger joints and adhesives

Question 23

dangers wood truss floors

Answer 23

high surface to weight ratio
gusset plate heating
no outward indication of presence

Question 24

dangers truss roofs

Answer 24

lack ridge pole

can fall when exposed

Question 25

flammability range co

Answer 25

12.5-74%

Question 26

firestops vs draftstops

Answer 26

Firestops-vertical

draftstop-horizontal

Question 27

wood made fire retardant by

Answer 27

mineral salts

Question 28

used to answer woods lack of shear strength

Answer 28

plywood

Question 29

spliced timbers joined by

Answer 29

metal connectors

Question 30

laminated timbers define

Answer 30

plank like sections of nominal 2 inch boards glued under pressure

Question 31

characteristics laminated timbers

Answer 31

burn like solid heavy timbers and do not delaminate like plywood

Question 32

planks are fabricated by

Answer 32

gluing three boards together with center protrude on one end and indented on other

Question 33

what is sheathing

Answer 33

covering applied to framing of structure

Question 34

used as sheathing

Answer 34

plywood, foamed plastic, fiberboard

Question 35

types of siding

Answer 35

vinyl
metal
corrugated metal
stucco

Question 36

type 5 construction

Answer 36

wood frame