B-1 Plans/ Specs

Question 1

What are the three, 3-D views?

Answer 1

Perspective
Isometric
Oblique

Question 2

Perspective view

Answer 2

Presents building just as it would look when finished. Gives a more realistic view. Uses a single vanishing point.

Question 3

Isometric view

Answer 3

Plumb lines are vertical, and the horizontal lines are set at 30 degree angles from a line parallel to the bottom

Question 4

Oblique view

Answer 4

Face or front view is drawn to exact scale and the oblique lines are extended at a 30-45 degree angle. Similar to perspective, but without a vanishing point

Question 5

Orthographic view

Answer 5

Most common used for work.

Shows only one face of an object, such as the front, back, side, or top.

Question 6

Architectural drawing

Answer 6

Main drawing of the building. Details all the finishing, and materials used. Includes floor plans, elevations, sections, and details.

Question 7

Structural drawing

Answer 7

Gives information about beams and girders, the reinforcing steel design, and the size and shape of structural members.

Question 8

Mechanical drawing

Answer 8

Used to identify and locate services for the mechanical trades: heating, plumbing, ventilation, air conditioning, and associated duct work.

Question 9

Electrical drawing

Answer 9

Used to identify and locate services for the electrical part of the building. Shows layouts of wiring for lights, switches, outlets, and panels. Also shows low- voltage services such and telephone, cable, and internet.

Question 10

Shop drawing

Answer 10

Made by manufactures of certain building components. Examples are cabinet manufactures, structural steel contractors, and window manufacturers. Architect or PM approves the shop drawings before the manufacturer begins construction.

Question 11

As- built drawings

Answer 11

Shows where the electrical and mechanical systems were installed, as well as any changes that were made during construction. Changes should be identified with revision clouds. Often used for maintenance work and future renovations and retrofits

Question 12

Landscape drawing

Answer 12

Shows all recommended trees, shrubs, flowers, grass, and structures such as fences, walkways, and seating.

Question 13

What is a plan view?

Answer 13

A view directly overhead, looking down

Question 14

What is an elevation view

Answer 14

A view from the side looking level.

Question 15

Border line/ title block

Answer 15

The border line around the page is a solid dark like. Usually a soft pencil ( H, F, or HB)

Question 16

Object lines

Answer 16

Define the edges of objects such as a wall or foundation. Solid, but darker than most in order to stand out. (2H)

Question 17

Dimension lines

Answer 17

Used to show dimensions of walls and other objects, and to show locations and heights. Have several parts including extensions, end points, the dimension line, and dimension text. (4H)

Question 18

Construction lines

Answer 18

Sometimes used by draft persons to position drawings and to transfer edges of objects from one perspective to another. Very light solid lines, and don’t show up in copies. (5H or 6H)

Question 19

Hidden lines

Answer 19

Made of short or medium length dashes. Used to show location of object that are hidden by other objects. Often used to show footings on a foundation plan or upper cabinets on a floor plan.

Question 20

Centre lines

Answer 20

Indicate the centre of and object, often used to provide location measurements for plumbing fixtures and other items. Made up of alternating long and short dashes

Question 21

Beam lines

Answer 21

Long and short dashes, dark like an object line. Used to represent centre of a beam.

Question 22

Leader lines

Answer 22

Used with text description to point to an object.

Question 23

Break lines

Answer 23

Short, solid lines used to cut off part of an object or drawing. Commonly run 45 degrees with a zig zag in the middle.

Question 24

Section lines

Answer 24

Used to show cutting planes to indicate section and cross section locations.

Question 25

Joist lines

Answer 25

Lines with small flags at the end. Used to represent floor joists, roof joists, rafters, and trusses

Question 26

Symbols and hatchings

Answer 26

Used to identify objects, materials, and views.

Question 27

Hatching

Answer 27

Used to fill the space contained by object lines. Indicate material used and make drawings easier to interpret.

Question 28

Plot plan

Answer 28

Small scaled drawing, showing the location of the building or structure and the distances between the building and property line (setbacks)
Includes property’s legal description, road location and name, an arrow north, and a benchmark for determining foundation heights

Question 29

Foundation plan

Answer 29

Shows location of all footings, necessary reinforcing steel, and the type and strength of concrete used. Also detail the foundation wall construction, columns, pilasters, and other concrete structures used in the foundation

Question 30

Floor plan

Answer 30

Provide room dimensions as well as overall dimension; the size, location, and swing of all doors and windows; and the size and spacing of the joists and beams overhead. Also show the location of the cabinets for the kitchen and bathroom, plumbing fixtures and the position of closet rods and shelves

Question 31

Elevations

Answer 31

View of any vertical surface and is taken from the floor plans. Shows the exterior of building when finished. Shows finished grade line. Shows roof slopes and projections, decks and rails, and the height of the building.

Question 32

Sections

Answer 32

Provide detailed drawings of the cross section of a building or wall unit. Show ceiling heights and clearances

Question 33

Detail drawings

Answer 33

Displays information for the construction of a particular part of a building