TRADE 02 Flashcards by ekyn chen

What should you do before cutting the bottom chord of a truss?

a. connect to adjacent trusses with cross ties
b. support the ceiling directly
c. place columns under the ends of the truss
d. support the floor

a. connect to adjacent trusses with cross ties

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Furring channel refers to:

a. a tool used to polish marble
b. a wood cutting tool
c. wood or metal strips that provide a base for fastening finish material
d. a surveyor’s instrument used to establish points and elevations

c. wood or metal strips that provide a base for fastening finish material

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What is a purlin used for?

a. to support the rafters
b. to flatten the roof
c. to reduce the number of joists needed
d. to level the ridge beam

a. to support the rafters

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How should the length of a glulam to be determined if over 16’?

a. Contractor can determine length
b. Engineer must calculate length
c. Dimension must be determined from UBC
d. Lumberyard can do the calculations

b. Engineer must calculate length

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the term “furring” refers to:

a. a plumbing fitting
b. a grounding electrode system
c. wood or metal strips fastened to a structural surface to provide a base for fastening finish material
d. parquet flooring pattern

c. wood or metal strips fastened to a structural surface to provide a base for fastening finish material

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In a home with a passive solar system, the window should face:

a. north
b. east
c. west
d. south

d. south

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If the width of a door that swings towards a landing on a ramp is 36”, what minimum length landing is required?

a. 36”
b. 48”
c. 60”
d. 78”

d. 78”

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What is the most effective method when preparing the surface of a metal frame for painting?

a. use hand tools
b. use power tools
c. sandblasting
d. use a blowtorch

c. sandblasting

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What is the name of the measurement system most commonly used in the United States?

a. metric
b. setric
c. English
d. Dutch

c. English

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What is the minimum clearance between wood framing members and the ground in a crawl space?

a. 6”
b. 12”
c. 18”
d. 24”

b. 12”

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In a built-up wood post constructed of three separate piece of lumber, excessive loading may cause the pieces to buckle away from each other. How can this be prevented?

a. the pieces should be glued together
b. the pieces should be securely nailed together
c. a metal post anchor should be used
d. wooden posts should never be built-up

b. the pieces should be securely nailed together

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In framing, a lookout is a(n):

a. Safety watch person on duty during scaffold construction
b. large upper-story window
c. optical leveling telescope
d. cantilevered beam

d. cantilevered beam

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What is the purpose of weep screeds?

a. to reduce water infiltration in stucco
b. Air flow
c. Keep small animals out
d. All of the above

a. to reduce water infiltration in stucco

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Mortar joint refers to:

a. wood joint
b. asphalt joint
c. vertical or horizontal joint between masonry walls
d. Pittsburgh joint

c. vertical or horizontal joint between masonry walls

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When a scaffold is over 7-1/2’ ____ are required.

a. railings
b. nets
c. ropes
d. safety belts

a. railings

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where would you NOT need safety glazing?

a. dual glazing
b. north-facing buildings
c. new buildings
d. when general contractor decides it is not necessary

a. dual glazing

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What does “ADA Compliant” refer to?

a. contractors followed Americans with Disabilities Act code and requirements
b. disabled workers are to work on the project
c. construction should have grab bars installed
d. an extra permit is needed

a. contractors followed Americans with Disabilities Act code and requirements

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A garage has a volume of 180,000 cubic feet. How many exhaust fans must be installed if each fan is capable of removing 1000 cubic feet of air per minute and the air must be completely exchanged at least 4 times each hour?

a. 3 fans
b. 6 fans
c. 12 fans
d. 18 fans

c. 12 fans

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The function of a Waler is:

a. to support a deck
b. horizontal member used to align and brace concrete forms or piles
c. to catalyze a chemical reaction
d. to decrease a chemical reaction

b. horizontal member used to align and brace concrete forms or piles

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Which of the following is most important when digging a trench 6’ deep that workers will enter?

a. erect barricades
b. post a sign indicating the depth of the trench
c. bracing on trench walls
d. fence around the deepest area of the trench

c. bracing on trench walls

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What is the minimum size framing member needed for R-22 insulation?

a. 2” x 4”
b. 2” x 4” with a 1/2” shear wall
c. 2” x 6”
d. 4” x 4”

c. 2” x 6”

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A collar beam is a:

a. vertical member that ties opposite rafters together
b. horizontal member that ties opposite rafters together
c. any vertical or horizontal member that ties rafters together
d. member that runs parallel to the rafters

b. horizontal member that ties opposite rafters together

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Which of the following is correct concerning the notching and boring of joists?

a. notch at end 1/4 of joist depth max; notch at top of bottom 1/6 depth max; bore at least 2” from top or bottom; bore diameter is 1/3 depth max.
b. notch at end 1/2 of joist depth max; notch at top or bottom 1/4 depth max; bore at least 3” from top or bottom; bore diameter is 1/4 depth max
c. notch at end 1/3 of joist depth max; notch at top or bottom 1/4 depth max; bore at least 4” from top or bottom; bore diameter 1/4 depth max.
d. none of the above

a. notch at end 1/4 of joist depth max; notch at top of bottom 1/6 depth max; bore at least 2” from top or bottom; bore diameter is 1/3 depth max.

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A racked joint is a type of :

a. fitting used in plumbing
b. plaster finish used on exterior walls
c. concrete formwork
d. mortar joint that is compacted to a specific depth while the mortar is still green

d. mortar joint that is compacted to a specific depth while the mortar is still green

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If a scaffold is constructed with two ladders and a plank, how far can the plank be above the ground? a. 8' b. 16' c. 24' d. 40'

b. 16'

what is the difference between a hip jack rafter and a common rafter? a. there is no difference b. a hip jack is longer than a common rafter c. a hip jack runs from the top plate to a hip rafter, but a common rafter runs to the ridge board d. a hip jack doesn't connect with the top plate

c. a hip jack runs from the top plate to a hip rafter, but a common rafter runs to the ridge board

According to the Energy Conservation Code, the maximum glazed area is calculated from a percentage of the ____ gross area, when building a 4 story residential building. a. wall b. floor c. ceiling d. door

b. floor

How soon should you pour concrete after have mixed it without additives? a. 1/2 hour b. 1 hour c. 4 hours d. 8 hours

a. 1/2 hour

Which of the following is least likely to appear in the safety rules for operating a crane? a. all definitions of hand signals are posted in a visible area b. hand signaler must be in well-lighted area. c. only qualified persons shall be permitted to give hand signals d. crane operator must respond to all signalers

d. crane operator must respond to all signalers

What size aluminum conductor would carry the same electrical current as a 14-gauge copper conductor? a. 10-gauge b. 12-gauge c. 14-gauge d. 16-gauge

b. 12-gauge

What is the nailing pattern for installing shear wall paneling if it is not specified in the plans? a. no special pattern b. 6" on edge and 12" in the field c. ask the local building authority d. must be specified in the plans.

b. 6" on edge and 12" in the field

What type of brick is used to build a garden wall? a. grade SW b. grade MW c. grade NW d. any of the above

a. grade SW

What is the maximum length of a 2" trap arm? a. 3-1/2' b. 5' c. 6' d. 10'

b. 5'

When would you wet brick masonry? a. never b. at any times c. when temperatures are above 32 degrees Fahrenheit d. before building a brick wall in warm weather

d. before building a brick wall in warm weather

When should you re-tighten the anchor bolts? a. before you finish framing b. after you finish framing c. after installing sheathing d. Prior to framing

b. after you finish framing

What type of nail is recommended for installing plywood sheathing? a. galvanized b. sinker c. common d. None of the above

c. common

What is the minimum dimension of a handicap landing with no doors? a. 3' x 4' b. 4' x 4' c. 5' x 3' d. 6' x 4'

c. 5' x 3'

What is the minimum embedment depth for anchor bolts in concrete? a. 6" b. 7" c. 8" d. 9"

b. 7"

What do you do with materials if you are done with them? a. cover them with a tarp b. put them aside c. keep them close by in case you need them again d. move them out of the way to keep the area clean, uncluttered and safe

d. move them out of the way to keep the area clean, uncluttered and safe

What is the tolerance on longitudinal placement of rebar in a slab? a. +- 3/8" b. +- 1/2" c. +- 1" d. +- 2"

d. +- 2"

If a fan moves 1000 cu ft of air per minute, how many fans would you need for one complete change of air per hour in an 180,000 cut ft room? a. 2 b. 3 c. 4 d. 5

b. 3

A purlin is a : a. horizontal support that spans across adjacent rafters and may be above or below the principal rafters b. vertical support that spans across adjacent rafters and may be above or below the principle rafters c. horizontal or vertical support that spans across adjacent rafters and may be above or below the principal rafters d. horizontal member that ties opposite rafters together

a. horizontal support that spans across adjacent rafters and may be above or below the principal rafters

What should you do with an existing electrical panel when remodeling a house? a. assume the existing panels is sufficient and keep it b. assume the existing panel is insufficient and replace it c. have the panel disconnected d. calculate for the present loads and replace it if necessary

d. calculate for the present loads and replace it if necessary

How many rebar is required for the wall below if it is 46' long and you must have a 12" overlap? Click Here to View Diagram a. 48' b. 92' c. 96' d. 108'

c. 96'

What is the standard width of a garage door? a. 8' b. 8-1/2' c. 9' d. 9-1/2'

c. 9'

What is the maximum allowed rise of a handicap ramp before you must have a landing? a. 5 feet b. 7 feet c. 10 feet d. 15 feet

a. 5 feet

Why should rebar stick out in the first pour during construction of a retaining wall? a. so the inspector can see it b. so the contractor can easily count the rebar c. so proper overlapping can be attained for pouring the next course d. rebar should not be stick out during the first pour

c. so proper overlapping can be attained for pouring the next course

What is the disadvantage of using a AC cable ? a. it has a two wire limit b. must use special ceramic collars c. it is difficult to ground d. it can only be used indoors and in dry conditions

d. it can only be used indoors and in dry conditions

Paint-grade wood cabinets require: a. staining b. sanding, priming, and finishing c. sanding and finishing d. no sanding

b. sanding, priming, and finishing

The phrase "dropping a stringer" means: a. to balance stairs b. to allow for the thickness of the first tread c. to snap a chalk line from the stair stringer d. to dangle a plumb line when laying out the stringer

b. to allow for the thickness of the first tread

What effect does calcium chloride have on concrete? a. make it set faster b. makes it set slower c. Weakens the concrete d. Strengthens the concrete

a. make it set faster

Before beginning work, a contractor must inquire whether asbestos is present in any building constructed prior to: a. 1975 b. 1978 c. 1985 d. 1990

b. 1978

What is the minimum number of times you should wrap flexible duct with tape? a. 2 times b. 3 times c. 4 times d. none

a. 2 times

When remodeling, what should be done first before removing a popcorn ceiling? a. test the material on the ceiling for asbestos b. inspect the structure c. Cover everything with plastic d. No need for covering since all will be demo

a. test the material on the ceiling for asbestos

The maximum allowable distance between a wall and a heavy trades wooden pole scaffolding for stone mason work is: a. 5" b. 6" c. 7" d. 14"

c. 7"

What is the minimum gage for galvanized (镀锌铁板) steel valley flashing? a. No. 16 b. No. 24 c. No. 28 d. No. 30

c. No. 28

The unit of hearing and cooling is: a. Btu b. volt c. amp d. ohm

a. Btu

What is the correct exposure for typical hip tiles? a. 8" b. 14" c. 20" d. 24" hip tiles: 屋脊盖砖

b. 14"

How do you decide which metal bracket to use? a. Ask engineer b. Ask local building authority c. Ask lumber yard d. Consult UBC

b. Ask local building authority

Linings for shower receptors are typically: a. two layers of 20-lb asphalt saturated felt b. two layers of 30-lb asphalt saturated felt c. three layers of 15-lb asphalt saturated felt d. four layers of 20-lb asphalt saturated felt

c. three layers of 15-lb asphalt saturated felt

What is the minimum insulation required for a water heater? a. R12 b. R15 c. R18 d. R21

a. R12

In construction, a hazardous area should be marked with what color tape? a. red b. green c. blue d. yellow

d. yellow

If a building code dispute arises on plans that have already been approved, who decides the dispute? a. licensed engineer b. local building department c. field inspector d. contractor

b. local building department

What plaster would you use as a base coat on wood to minimize flammability? a. bond plaster b. wood-fibered plaster c. ready-mix plaster d. neat plaster

b. wood-fibered plaster

A contractor installs a handrail along a stairway. The handrail is 1-5/8" in diameter and is installed 1-3/4" from the wall. Base on this installation, does the handrail meet building codes? a. yes b. no, the handrail should be 1-3/4" diameter and installed 2" from the wall c. no, the handrail should be 2" in diameter and installed 2" from the wall d. no, the handrail should be 1" in diameter and installed 1-1/2" from the wall

a. yes

What is the minimum clearance between untreated wood siding and rough ground? a. 12" b. 8" c. 6" d. 3"

c. 6"

On the following, which material should NOT be used in building a skylight? a. laminated glass b. annealed glass c. rigid plastic d. tempered glass

b. annealed glass

Which type of material would you use for backfill up to a foundation? a. gravel b. fill dirt planted with rye grass to stabilize soil c. sand d. no backfill allowed--must pour concrete up to the existing foundation

a. gravel

Where do you need a fire wall? a. between a living room and a bedroom b. between a bedroom and a bathroom c. between a kitchen and a bath d. a separation wall between a dwelling and an attachment

d. a separation wall between a dwelling and an attachment

In order to prevent confusion from other work on a job site, with what color chalk line do contractors mark excavation? a. white b. pink c. red d. yellow

a. white

What is the tolerance on effective depth when placing rebar in a slab more than 8" thick? a. +- 3/8" b. +- 1/2" c. +- 1" d. +- 2"

b. +- 1/2"

What is the minimum habitable area for rooms other than the kitchen? a. 56 sq ft b. 70 sq ft c. 90 sq ft d. 100 sq ft

b. 70 sq ft

How often should you check heavy equipment? a. once per week b. once per day c. once per month d. once per shift

d. once per shift

Who has the final word on what type of concrete to use? a. soils engineer report and recommendation b. recommendation by the supplier c. Specifications d. General Contractor

a. soils engineer report and recommendation

Which of the following is used for unclogging sewer drains? a. hickey b. fish tape c. auger d. plunger auger: 螺旋钻

c. auger

What is the disadvantage of using BX cable? a. more expensive than Romex b. difficult to pull old wires and insert new ones c. inflexible d. both A and B

d. both A and B

How should you treat a first-degree burn? a. flush with water and wrap loosely b. flush with water wrap tightly c. apply ointment and wrap loosely d. apply ointment and wrap tightly

a. flush with water and wrap loosely

What should you not do when working with acid? a. wear loosely woven cloth gloves b. wear tight fitting safety glasses c. pour acid into water d. store the acid in a well ventilated area

a. wear loosely woven cloth gloves

A stairway's maximum total riser and tread dimension would be: a. 1 riser + 2 treads = 22" b. 2 riser + 1 tread = 25" c. 2 treads + 1 riser = 25" d. dependent on customer's request

b. 2 riser + 1 tread = 25"

When do you use a raked joint? a. When the joint is too wide b. When the mortar is too stiff c. When the mortar is too soft d. When the plans call for a specific and even joint depth

d. When the plans call for a specific and even joint depth

When selecting a subcontractor, which of the following should you look for? a. the subcontractor you are good friends with b. the subcontractor who bid the lowest c. the subcontractor who will complete the job fastest d. the subcontractor who will meet the description and criteria of the work and is properly certified with the necessary license by the CSLB

d. the subcontractor who will meet the description and criteria of the work and is properly certified with the necessary license by the CSLB

For cantilevered beams, what is generally the maximum ratio of the supported to the unsupported length? a. 1:02 b. 2:01 c. 3:01 d. 6:01

b. 2:01

When a special inspector required on a concrete pour? a. when the required compressive strength is greater than 1800 psi b. when the required compressive strength is greater than 2500 psi c. when called for in the contract d. when called for by the engineer

d. when called for by the engineer

What is the maximum cut on truss that is sitting on a wall framed with 2 x 4 lumber? a. notched 1/2" b. notched 3/4" c. notched 1/3 the thickness d. no cutting is allowed

d. no cutting is allowed

What is the tolerance on longitudinal placement of rebar when the bar is bent at one end? a. +- 3/8" b. +- 1/2" c. + 0", -3/8" d. + 0", -1/2"

d. + 0", -1/2"

What is the minimum openable area for window that is to be used as an escape or egress window? a. 2.4 sq ft b. 3.0 sq ft c. 4.2 sq ft d. 5.7 sq ft

d. 5.7 sq ft

An underground utility line is marked with paint. What is the minimum distance mechanical excavating equipment must stay from the paint mark? a. 48" b. 36" c. 24" d. 12"

c. 24"

You do a crowning on a piece of lumber to: a. measure the size of a knot b. measure the straightness of lumber c. top off a post with an ornament d. compensate for warped lumber when framing

d. compensate for warped lumber when framing

What is the minimum required width of a residential shower door? a. 22 inches b. 24 inches c. 28 inches d. 30 inches

a. 22 inches

Which of the following will not have a continuous pilot? a. boiler b. heat pump c. water heater d. furnace

b. heat pump

When installing drywall screws, you should: a. countersink b. drive just below the face of the board c. leave slightly above the surface d. use the highest torque setting

b. drive just below the face of the board

Where would you use a reglet and counter flashing together? a. at the intersection of a parapet wall and the roof b. at the edge of the eaves line c. between the shingles d. on the ridge of the roof

a. at the intersection of a parapet wall and the roof

Where would you use to clean white mortar stains from bricks? a. vinegar b. soap and water c. bleach d. TSP

d. TSP

After obtaining a general building permit, when must work begin? a. within 60 days b. within 90 days c. within 120 days d. within 180 days

d. within 180 days

When you say a wall if "perfect," it is: a. level b. straight c. stable d. plumb

c. stable

Which of the following is the best way to sand wood? a. along the grain b. across the grain c. across the grain vertical d. circular

a. along the grain

How closely spaced must supports be for Romex in a roof cavity? a. 4' b. 6' c. 12' d. 16'

a. 4'

What is the maximum permitted distance between convenience outlets? a. 6' b. 8' c. 10' d. 12'

d. 12'

A stove unit without insulation must be how many inches away from combustible material? a. 3" b. 6" c. 9" d. 12"

b. 6"

What is the minimum angle at which solar collectors should be mounted? a. 45 Degrees b. 60 Degrees c. according to geographical latitude d. according to geographical longitude

c. according to geographical latitude

How many inches should reinforcing steel be from the edge of a concrete girder? a. 1-1/2" b. 2" c. 3" d. 4"

a. 1-1/2"

The maximum allowable distance between a wall and heavy trades wooden pole scaffolding is: a. 5" b. 6" c. 7" d. 14"

d. 14"

When determining the layout of a residential building, the most important element to take into account is the: a. property lines b. utilities c. easement d. fences

a. property lines

A contractor is adding a room to a 1960 original construction, built to 1960 codes. Which of the following best reflects the permit requirements for the existing and new construction? a. the 1960 portion of the house must be brought up to current building standards b. the 1960 portion of the house (with the exception of the smoke detectors) doesn't have to be updated c. the permit for new construction doesn't affect the 1960 construction d. the 1960 portion of the house doesn't have to be upgraded

b. the 1960 portion of the house (with the exception of the smoke detectors) doesn't have to be updated

When notching and boring studs in non-bearing walls, you must not cut more than: a. 60% when boring, 40% when notching b. 40% when boring, 60% when notching c. 50% when boring, 40% when notching d. 40% when boring, 50% when notching

a. 60% when boring, 40% when notching

When toxic substance is being sprayed, what should be done? a. provide sprayer with a surgical mask b. provide sprayer with a respirator c. all area should be well ventilated c. toxic substances should never be sprayed

b. provide sprayer with a respirator