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NHIE Home Inspection Manual: Structural - Floor System| exam questions and answers/verified 100%

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NHIE Home Inspection Manual: Structural - Floor System| exam questions and answers/verified 100%NHIE Home Inspection Manual: Structural - Floor System| exam questions and answers/verified 100% What is the uniform live load for sleeping rooms? - correct answers-- 30 PSF What is the uniform live load for other rooms? - correct answers-- 40 PSF What is the max allowed deflection under the uniform load? - correct answers-- L/360 - L is joist, truss, or beam span in inches - I.e., A 144 inch beam may not bend more than about 3/8 inch (144/360=.4 or 3/8") What are examples of a point load? - correct answers-- Person walking across a room, a bathtub filled with water and a bather How do you define point load? - correct answers-A point load is refers to when a load is applied to a single, specific point on a structural member. What are the 6 common wood species used for framing lumber? - correct answers-1) Doug fir, 2) Hem fir, 3) Spruce, 4) Pine, 5) Fir, and 6) Southern pine How do wood grades work? - correct answers-- Rated by grades No. 1, No. 2, & No. 3 - Highest grade is No. 1 - No. 2 commonly used in residential framing What are the 2 most common types of floor sheathing? - correct answers-1) OSB 2) Plywood What are dimensional lumber floor joist typically spaced at o.c.? - correct answers-- 16 o.c. & 24 o.c. - 12 o.c. used for stiff floor applications Helpful saying: - 16-n-24 fo' the flo' How much should a floor joist bear on wood? - correct answers-- 1 1/2 in. How much should a floor joist bear on concrete and masonry? - correct answers-- 3 in. In modern construction, should the sill plate be secured to the foundation? - correct answers-- Yes What width bolts are needed to secure the sill plate to the foundation? - correct answers-- At least 1/2 in. Can straps be used to secure the sill plate to the foundation? - correct answers-Yes, if they are specifically made for that purpose. How far apart should the sill plate bolts or straps be placed? - correct answers-- 6 ft min - Washer & fully tightened nut required How far from the edge should a sill plate bolt or strap be located? - correct answers-- 1 ft max - 1/2 in. bolts not closer than 3.5 in. to plate edge - Bolts/straps installed in middle 1/3 of plate Attaching a full depth rim joist where the joist bear on the foundation is called? - correct answers-- Blocking Floor joists from opposite sides that meet over an interior wall or beam should lap at least ________ inches? - correct answers-- 3 Note: - Joist should be fastened to each other What is the purpose of bridgin

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NHIE Home Inspection Manual: Structura
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Floor System| exam questions and answ
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Whatugisugtheuguniformugliveugloadugforugsleepingugrooms?ug-ugcorrectuganswers--ug30ugPSF

Whatugisugtheuguniformugliveugloadugforugotherugrooms?ug-ugcorrectuganswers--ug40ugPSF

Whatugisugtheugmaxugallowedugdeflectionugunderugtheuguniformugload?ug-ugcorrectuganswers--ugL/360ug

-ugLugisugjoist,ugtruss,ugorugbeamugspanuginuginches

-ugI.e.,ugAug144uginchugbeamugmayugnotugbendugmoreugthanugaboutug3/8uginchug(144/360=.4ugorug3/8")

Whatugareugexamplesugofugaugpointugload?ug-ugcorrectuganswers--
ugPersonugwalkingugacrossugaugroom,ugaugbathtubugfilledugwithugwaterugandugaugbather



Howugdougyouugdefineugpointugload?ug-ugcorrectuganswers-
Augpointugloadugisugrefersugtougwhenugaugloadugisugappliedugtougaugsingle,ugspecificugpointugonugaugstructuralugmemb
er.

Whatugareugtheug6ugcommonugwoodugspeciesugusedugforugframinguglumber?ug-ugcorrectuganswers-1)ugDougugfir,ug

2)ugHemugfir,ug

3)ugSpruce,ug

4)ugPine,ug

5)ugFir,ugandug

6)ugSouthernugpine

Howugdougwooduggradesugwork?ug-ugcorrectuganswers--ugRatedugbyuggradesugNo.ug1,ugNo.ug2,ug&ugNo.ug3

-ugHighestuggradeugisugNo.ug1

-ugNo.ug2ugcommonlyuguseduginugresidentialugframing

Whatugareugtheug2ugmostugcommonugtypesugofugfloorugsheathing?ug-ugcorrectuganswers-1)ugOSB

2)ugPlywood

Whatugareugdimensionaluglumberugfloorugjoistugtypicallyugspacedugatugo.c.?ug-ugcorrectuganswers--
ug16ugo.c.ug&ug24ugo.c.

, -ug12ugo.c.ugusedugforugstiffugfloorugapplications



Helpfulugsaying:

-ug16-n-24ugfo'ugtheugflo'

Howugmuchugshouldugaugfloorugjoistugbearugonugwood?ug-ugcorrectuganswers--ug1ug1/2ugin.

Howugmuchugshouldugaugfloorugjoistugbearugonugconcreteugandugmasonry?ug-ugcorrectuganswers--ug3ugin.

Inugmodernugconstruction,ugshouldugtheugsillugplateugbeugsecuredugtougtheugfoundation?ug-ugcorrectuganswers--
ugYes



Whatugwidthugboltsugareugneededugtougsecureugtheugsillugplateugtougtheugfoundation?ug-ugcorrectuganswers--
ugAtugleastug1/2ugin.



Canugstrapsugbeugusedugtougsecureugtheugsillugplateugtougtheugfoundation?ug-ugcorrectuganswers-
Yes,ugifugtheyugareugspecificallyugmadeugforugthatugpurpose.

Howugfarugapartugshouldugtheugsillugplateugboltsugorugstrapsugbeugplaced?ug-ugcorrectuganswers--ug6ugftugmin

-ugWasherug&ugfullyugtightenedugnutugrequired

Howugfarugfromugtheugedgeugshouldugaugsillugplateugboltugorugstrapugbeuglocated?ug-ugcorrectuganswers--
ug1ugftugmaxug



-ug1/2ugin.ugboltsugnotugcloserugthanug3.5ugin.ugtougplateugedge

-ugBolts/strapsuginstalleduginugmiddleug1/3ugofugplate

Attachingugaugfullugdepthugrimugjoistugwhereugtheugjoistugbearugonugtheugfoundationugisugcalled?ug-
ugcorrectuganswers--ugBlocking



Floorugjoistsugfromugoppositeugsidesugthatugmeetugoveruganuginteriorugwallugorugbeamugshoulduglapugatugleastug___
_____uginches?ug-ugcorrectuganswers--ug3



Note:

-ugJoistugshouldugbeugfastenedugtougeachugother

Whatugisugtheugpurposeugofugbridgingugjoists?ug-ugcorrectuganswers--ugPreventugtwisting

Bridgingugisugrequiredugwhenugaugjoistugisug_____ugin.ugxug_____ugin.ugoruglarger?ug-ugcorrectuganswers--
ug2x12uganduglarger



-ugAlthoughugitugisugcommonugonugsmaller

Whenugaugfloorugsystemugcantileversug&ugsupportsugaugloadugbearingugwall,ugtheugback-
spanugshouldugbeugatugleastug______ugft.ugforugeveryug_____ugft.?ug-ugcorrectuganswers--
ugAtugleastug3ugfeetugforugeveryug1ugfeet

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