BC FINAL EXAM

Question 1

Who do you have a safety obligation to?

Answer 1

yourself, fellow workers, and employers

Question 2

Where are dimension lines located on a blueprint?

Answer 2

The middle of the dimension lines

Question 3

What color is an oxygen hose for welding?

Answer 3

green

Question 4

What are the three categories of on-the-job events?

Answer 4

accidents, incidents, and injuries

Question 5

What is everything an SDS shows?

Answer 5

A safety data sheet shows: Identity and Ingredients; Properties of each chemical (physical and chemical); Health Hazards - health risks associated with the substance; Physical Hazards-physical dangers substances may pose; Environmental Health Hazards-Info about potential environmental impacts of the substance; Protective Measures-guidelines for protective measures when handling a substance; Safety Precautions for Handling-Instructions for safe handling of a substance; Safety Precautions for Storing-guidelines for safe storage of a substance; Safety Precautions for Transporting-Instructions for safe transportation of a substance; Emergency Procedures-detailed procedures for dealing with emergencies involving a substance; Disposal Considerations-Guidelines for the safe disposal of the substance.

Lists hazards on a worksite and the procedures to deal with substances.

Question 6

Who develops floor plans?

Answer 6

Architects

Question 7

Explain how a GFCI works:

Answer 7

The Ground Fault Circuit interrupter is placed in areas of moisture or water to detect any interruption in the flow of electricity to cut off the circuit in less than a blink of an eye to prevent harm effectively.

Question 8

What is an RFI and what is it used for?

Answer 8

An RFI or Request for Information is a formal written response to request clarification about projects when there are discrepancies.

Question 9

What is area a measurement of?

Answer 9

surface area

Question 10

How to calculate area

Answer 10

Area = length x width

Question 11

How to calculate perimeter

Answer 11

Add the sides together

Question 12

What are chalk lines and what else can they be used for?

Answer 12

Chalk lines are used to mark long, straight lines on relatively flat surfaces, and if shaped like a teardrop it can be used as a plumb bob.

Question 13

What are plumb bobs used for?

Answer 13

A plumb bob determines the vertical alignment and ensures that objects and structures are perfectly upright.

Question 14

What is the difference between plumb and level?

Answer 14

Plumb means to be vertical and level means horizontal.

Question 15

What is platform and balloon framing?

Answer 15

Platform framing builds each floor separately, while balloon framing uses continuous studs from the foundation to the roof

Question 16

What info is found on a floor plan?

Answer 16

Shows locations of walls, doors, windows, fixtures, structural elements, dimensions, and notes for construction

Question 17

What info is found on a foundation plan?

Answer 17

Shows the layout, dimensions, type of foundation, footing dimensions, reinforcement details, and anchor bolt locations

Question 18

What info is found on a plot plan?

Answer 18

Shows property lines, dimensions, structures, utilities, landscaping, and geographic location, providing a layout of the property

Question 19

What does pneumatic mean?

Answer 19

A tool that is powered by air pressure

Question 20

What does hydraulic mean?

Answer 20

A tool that is powered by water

Question 21

What type of gun would be used to install trim and frame etc.?

Answer 21

A finish nailer which is designed for delicate work to provide a cleaner finish.

Question 22

What are the different building phases in order?

Answer 22

Prepare construction site foundation, complete rough framing (walls, roof, floors), Complete Rough plumbing, electrical, and HVAC, install insulation, complete drywall and exterior fixtures, Finish interior trim, walkway and driveway, installation of hard surface coloring, countertops, complete exterior grading, finish mechanical trims, install bathroom fixtures, install mirrors, shower, doors, finish flooring, exterior landscape, and lastly conduct final walk-through

Question 23

What are the lumber dimensions for the numbers: Hardwood Dimensions: 1/2(S1S), 1/2(S2S); Softwood Dimensions: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12?

Answer 23

Hardwood Dimensions:
1/2(S1S)= 3/8
1/2(S2S)= 5/16
Softwood Dimensions:
1= 3/4
2= 1-1/2
3= 2-1/2
4= 3-1/2
5= 4-1/2
6= 5-1/2
8= 7-1/4
10= 9-1/4
12= 11-1/4

Question 24

What is a hammer drill used for?

Answer 24

Drilling into concrete or metal

Question 25

What is a miter saw used for?

Answer 25

Cuts precise angles on wood

Question 26

What is a circular saw used for?

Answer 26

Handheld saw to make straight cuts on a variety of materials

Question 27

What is the band saw used for?

Answer 27

makes precise curved cuts for creating furniture and cabinets

Question 28

What is the table saw used for?

Answer 28

Makes precise cuts in large pieces of wood

Question 29

What are the different types of fasteners?

Answer 29

Nails-used for general framing and construction; Screws-wood screws, drywall screws, and self-drilling screws; Bolts-used to join beams, columns, and other structural members; Anchors-expansion anchors (expand when tightened) and sleeve anchors (designed for concrete); Rivets-single-use fasteners designed to be a permanent joint between two materials or parts; Washers-used to distribute the load of a threaded fastener, such as a screw or nut; Staples-attaches structures like insulation, wire, or fabric to surfaces. Fasteners are categorized into 3 types based on their fastening method: Temporary Fastening- Fasteners like nuts, bolts, screws, lock pin, and washer are used. These things can be disjointed or joined again easily without any harm to the machine or its parts; Semi-permanent Fastening-The fastening may be destroyed but not work. It is used when the joints have had little chance of re-opening. Such as soldering, and riveting; Permanent Fastening-They are single-use fasteners designed to be a permanent joint between two materials or parts. When a permanent fastener is used, the parts will never come apart. (rivets, welding, soldering, and brazing).

Question 30

What are all the parts of the wall?

https://quizlet.com/654189615/wall-framing-diagram/

Answer 30

1: common stud |X (line is marked 3/4” away from center “x” mark
2: header
3: King Stud (X)
4: Trimmer Stud (O)
5: King Stud (X)
6: Sill Plate
7: Criplle Studs / or \
8: Header
9: Common Stud
10: Bottom Plate
11: Rafter Plate
12: Top Plate

Question 31

How do you calculate concrete yards for slabs and footings?

Answer 31

(Length x Width x Depth/Thickness)/27

Dimensions must be in feet and when solved will convert to cubic yards

Question 32

How do you use an architect’s scale? What is the measurement 1/4”=1’-0”

Answer 32

1 foot / 12 inches, measures to 12”

Question 33

How do you use an engineer’s scale? What is 1”=40’

Answer 33

1” on the engineer’s scale is equal to 40’ in real life, measures to 10”

Question 34

How do you lay out a wall 16” on center with a window?

Answer 34

1. Mark the center of the 2x4
2. Depending on the width of the window (4x5) divide it by 2 (=2) then take that number and put it on both sides of the center to total the width of the window
3. Mark the studs every 16” (|X - the line being 3/4” from the center/x) and mark studs at the start and end of the 2x4.
4. If studs are placed in the window space mark them as cripple studs ( \ or / , supports the sill plate for the window)

Question 35

What is the purpose of each framing component?

Answer 35

Studs - Forms the walls/holds up roof
Floor joists - support the floor, and ceiling weight from the walls
Mudsills - Attached to the foundation walls with Anchor bolts, providing a bearing surface that prevents contact btw the untreated floor joists and the concrete foundation.
Support Beam - bears the first-floor joists
Rim Joists - Rest on the outer edge (on the mudsill) of the mudsills, helps hold the floor joists in a vertical position/part of the floor system
Rafter - Beams that make up the roof, and meets at the rafter/ridge beam then the rafter plate which is on the top plate.
Sheathing - Used on the floor, wall, and roof

Question 36

How do you calculate plywood coverage?

Answer 36

Number of plywood sheets = (total area)/(area of a plywood sheet)
area of a plywood sheet = 4’x8’=32ft^2

Question 37

What are the different parts of electricity?

Answer 37

Black wire: hot wire goes to gold screw
White wire: neutral wire goes to silver screw
Copper wire: ground wire goes to copper/green screw
Red wire: hot wire goes to black screw along with black wire when working on three-way switches
12-2 wire: 12 gauge (bigger than 14), 2 hot wires (not including ground wire)
12-3 wire: 12 gauge (bigger than 14), 3 hot wires (not including ground wire)
14-2: 14=gauge, 2 hot wires (not including ground wire)

Question 38

How do you wire switches and receptacles?

Answer 38

3 screws on three way switch-wind ground wires together then put on copper screw, and both black and red go on black screws (doesn’t matter which just be consistent with design); 2 screws regular switch-wind neutral wires together then put a nut on it
(Ensure that when tightening down screws the wire goes in the same direction the wire is being tightened)

Question 39

How do you lay out a rafter?

Answer 39

1. Divide length of building by 2 (the number is how many times you should step off with the framing square = 12”)
2. mark angle while stepping with frame square
3. at the end account for any overhang
4. At the line before the overhang flip the framing square over so it’s facing up/away from you and at the top left of the line (measure the birds mouth by watching the length on the left side of it (skinny side of framing square) (never want it to be 1/3 the width of your board)
5. Be sure to remove 3/4” from the top line/top of rafter to account for the ridge

Question 40

Who lays out site plans and floor plans?

Answer 40

The Engineer lays out site plans and the architect lays out floor plans

Question 41

What are the lengths/sizes of a 16-penny and 8-penny nail?

Answer 41

16-penny: Framing, 3”
8-penny: connects sheathing, 2”