Trade Flashcards by Oliver Manley

If the cost of 2” x 6” lumber is $0.70/BF what is the estimated total cost of required lumber for joist blocks across a 16’ ceiling spaced 16” OC if the room is 24’ long (do not consider overlap)?

$218.40

How well did you know this?

Not at all

Perfectly

When a general contractor is obtaining material for a certain structure, what is the MOST reliable source of information concerning the grade of lumber to be used?

ICC-IBC-IRC

How well did you know this?

Not at all

Perfectly

A truck bed is 6 feet wide, 9 feet long, and 3 feet high. How many cubic yards will it hold when loaded level to the sides?

How well did you know this?

Not at all

Perfectly

A voltmeter is wired:

In parallel to test an energized circuit

How well did you know this?

Not at all

Perfectly

Which of the following statements must be TRUE of raised foundation ventilation?

It must equal 1.5 square feet per 25 lineal feet

How well did you know this?

Not at all

Perfectly

What is the minimum size (in surface square ft.) for a window to be used as an egress or escape?

5.7 square feet

How well did you know this?

Not at all

Perfectly

What is the size (diameter) of #5 rebar?

5/8 inch

How well did you know this?

Not at all

Perfectly

Where is a Tee Wye (TY) used?

Plumbing

How well did you know this?

Not at all

Perfectly

In what seismic zones are angle-braced shear walls allowed?

Zones 0, 1 and 2A

How well did you know this?

Not at all

Perfectly

How many square feet will one square of composition shingles cover?

How well did you know this?

Not at all

Perfectly

The vertical length of the extended part of a trestle ladder must not be greater than ___ of the height of the base ladder?

1/2 (one half)

How well did you know this?

Not at all

Perfectly

When used for fastening plates to concrete or masonry foundations, steel anchor bolts must be set at least ___ deep and spaced no more than ___ apart?

7”—6’

How well did you know this?

Not at all

Perfectly

Use an ohmmeter to test which of the following circuits?

De-energeized circuit wired in series

How well did you know this?

Not at all

Perfectly

A device with a resistance of 20 ohms is connected to a 120V circuit. According to Ohm’s law how many amps will it draw?

6 amps

How well did you know this?

Not at all

Perfectly

What is the typical on center (OC) nail spacing in the field of a plywood shear panel?

12” OC

How well did you know this?

Not at all

Perfectly

What is the minimum length of a cripple stud in a bearing wall?

14”

How well did you know this?

Not at all

Perfectly

Wood studs supporting headers are usually called?

Trimmer studs (jack stud)

How well did you know this?

Not at all

Perfectly

If plans and specs do not agree, which is correct?

Conflict should be arbitrated with the architect

How well did you know this?

Not at all

Perfectly

Which of the following is NOT likely to be found in significant portions in granular soil?

Clay; (Gravel, sand, salt, is expected)

How well did you know this?

Not at all

Perfectly

Why is it important for vertical and horizontal rebar to end up in the same bed?

Strength

How well did you know this?

Not at all

Perfectly

The minimum slope of a self sealing, double lapped shingle roof is:

4/12

How well did you know this?

Not at all

Perfectly

How many square foot ceiling tiles are required for coverage of a ceiling area measuring 11ft. 3 in. by 12 ft. 9 in.?

144

How well did you know this?

Not at all

Perfectly

2”x4” wood studs supporting a floor, ceiling, and roof may be spaced up to ___ on center?

16”

How well did you know this?

Not at all

Perfectly

Before starting a portable round blade power saw, what safety precaution should be taken?

Make sure the blade guard is in place

How well did you know this?

Not at all

Perfectly

What device is used in the field to check for elevation?

transit and staff

The maximum distance between nails in drywall is:

8 inches

What is a percolation test?

Test to determine whether the soil is porous enough to absorb effluent water & waste

What is the formula for the area of a circle?

Pi x radius x radius

What is the minimum slope permissible for a composition roof?

2/12 or 2' Rise 12' run 12' Run

One cubic yard of cement will pour how many feet of a walkway which is 4 inches thick and 3 feet wide?

The maximum type of timber shoring used in a trench specified in the California Code of Regulations Title 8 is:

Douglas fir

What size rebar should be placed in a bond beam?

Which of the following is NOT a good safety procedure when dealing with acid?

Wear fabric (cloth) gloves (from close-fitting goggles, pour acid into water, not water into acid, store in properly vented areas)

What is the resistance in ohms, if a 110W is connected to a 220V line?

440

What should a contractor do when considering which the of caulking to use for stucco (fine plaster) exteriors?

Use material designed to be compatible with stucco products

A device draws 3 Amps at 120 V. According to Ohm's Law what is the resistance?

40 Ohms

Which of the following glazing materials CANNOT be used in safety glazing applications

Annealed

Which of the following statements is NOT true about earthquake construction?

Shear walls represent vertical bracing

The pitch of a roof with a 12 foot run and an 18 foot rise is:

3/4

Which of the following has more amperage?

10 kiloamps

What is a safe grounding method for metallic water lines?

mechanical bond to a ground source

Metal forms should be ___ rather than wetted?

oiled

What kind of "clips" are used to eliminate the need for blocking at roof panel seams spanning trusses or rafters?

H-clips

What is the minimum underlayment on a smooth floor surface?

1/4"

A bricklayer's jump board, no higher than ___ above the scaffold platform, is allowed

20"

The minimum thickness for shear wall sheathing is?

5/16"

When are anchor bolts tightened?

As soon as the concrete has cured at 90%

How do you join cast iron to copper on waste & vent systems?

No hub coupling

What are the coats (from first to last) for exterior stucco?

Scratch coat, brown coat, finish coat

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

2 x 8

A garage has a volume of 180,000 cubic feet. In order to exchange the air 4 times per hour, how many exhaust fans must be installed if each fan is capable of removing 100 cubic feet per minute?

Where do the A 35's go if used to install truss rafters?

Between truss-blocks and top plate

The safety valve on a portable air compressor should be popped at least?

Weekly

Which of the following tools require a constant contact on/off switch?

Circular saws

Where would you find laws regarding high-rise scaffolding?

Title 8, CSO (Construction Safety Orders)

A handrail shall extend at least ___ inches beyond the top and bottom risers

12"

In most truss roof designs, the trusses are supported by?

Bearing walls

The problems with a China bristle brush is that:

It absorbs water

You are testing a low-voltage circuit in a system that is not functioning properly, You insert the probes of a test light into the two slots of a 12V receptacle, and the test light comes on. You would conclude that:

The circuit wiring is defective

When considering the conditions relevant to a building site and its drainage plan, which of the following should be reviewed?

Drainage need for new structure

The minimum thickness for shear wall sheathing is?

5/16"

Diameter of #3 Rebar

3/8"

Diameter of #4 Rebar

1/2"

Diameter of #6 Rebar

3/4"

Diameter of #7 Rebar

7/8"

Diameter of #8 Rebar

What is the minimum standard height of an exit door?

80"

When considering the conditions to a building site and its drainage plan, which of the following should be reviewed?

Drainage need for new structure

One cubic yard of cement will pour how many feet of a walkway which is 4 inches thick and 3 feet wide?

27'

Where would you find laws regarding high-rise scaffolding?

Title 8, CSO Construction Safety Orders

How should ceramic tile be installed?

With mastic over a sealed surface

In determining the size and type of foundation footing required, which should be considered

The soil bearing capacity

Where should a doorjamb be shimmed?

On the hinge and lock side with three on each side

Natural gas fuel lines may NOT be installed in which of the following locations?

Under foundations

____ is the best for rubbing and scratch resistance

Polyurethane

You need to drill a small hole in a concrete slab on a monolithic pour with post tension cables, what do you do?

Have it X-rayed

If a (live), bare wire touches any grounded object, tool, or other conducting material, which device will protect a worker from electrical shock?

Ground-fault circuit interrupter

Asphalt shingles should have an overhang of ___ for the starter course

3/4"

Where is a 4 prong outlet plug used?

To connect a house trailer or RV vehicle

Handicap restrooms must have...

Wrapped drain lines Lever handles on faucets A minimum of 48" of space in front of toilets

For a pedestrian ramp to a residential building, how large must the landing be if the door swings in?

60" by 60"

Which statement is correct concerning oily rags stored at a job site?

They can be stored at a job site in sealed containers

A handrail shall extend at least ___ inches beyond the top and bottom risers

12"

In order to ensure the integrity of the shear panel, what should nails do?

Not penetrate the membrane

An employer must test the air at a work place for asbestos concentration if it exceeds ___ fibers/cc air over an 8-hour period

0.1 fibers/cc

What is the pitch of a roof with a span of 24 feet and a rise of 8 feet?

1/3

In determining which size and type of rafter to use in construction, a contractor should consider three factors. The first two factors are the distance spanned and the weight supported. What is the third?

The spacing of the rafter

New residential buildings must comply with the energy requirements described in which document?

Title 24

What is the minimum fine for incorrect removal of asbestos?

$1000

For tube and brick scaffolds, all posts, ribbons and bracing must be made of ___ nominal O.D. (outside diameter) steel tubing

What should a contractor do prior to an inspection?

Make sure uninspected work is exposed and accessible

What is the BEST procedure to minimize voids in concrete when laying large areas?

Vibrate & Tamp the concrete

A vertical wall, correctly installed is said to be:

plumb

Which shingles are not fire rated?

Class D

What is the best method to use to handle an I-beam?

Nylon strap

Which of the following has more amperage?

10 kiloamps

The minimum slope of a self sealing, double lapped shingle roof is:

4/12

The reason an 18" clearance is required from the bottom of floor joists to the finish grade, is to:

Allow for crawl space

Every employer in construction work must have an accident prevention program. What must it include?

- Toolbox safety meetings with the crew at least every 10 days - A foreman's meeting at least once a month - A code of safe practices for the job

What is the minimum size for a service-drop line?

#8 copper in cable

The constant-contact, on-off switch on a circular saw can be disabled:

never

A general contractor notices the closer on a 1-hour fire rate door between the living area and the garage has not been installed, the project was already given a certificate of occupancy by the building department. What should he/she do?

Fix the problem

What is the maximum drop when pouring concrete?

6 feet

Before installing a new driveway approach, who should the contractor first contact?

Building Department

Beam-type platforms for suspended scaffolds must have stringers of lumber at least ___ set on edge

2"x6"

The problem with a China bristle brush is that

It absorbs water

For safety reasons, the max simple slope of an excavation up to 20ft in depth in Type-B soil is

1:1

The best way to square a room is to:

Make sure opposite sides are square & parallel

Which building codes apply when working on a private residence in a city?

The codes determined to be acceptable by the local city building department

Where should a contractor look, to determine the correct size of electrical conductor for a specific task?

National Electrical Code (NEC)

What is a safe grounding method for metallic water lines?

Mechanical bond to a ground source

Tempered glass is required for ONE of the following

Sliding door

Over an 8-hour period, an employee must not be exposed to more than ___ asbestos fibers/cc air, as determined by the membrane filter method for test concentrations?

0.1%