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Grade 12 PWY A Christmas Theory Exam

Total questions: 40

Worksheet time: 20mins

Name
Class
Date
1.

Part A – Multiple Choice (1 mark each) A building section is drawn to show:

a)

The exterior design of the building

b)

The internal construction and vertical relationships of spaces

c)

The roof framing layout

d)

The landscaping plan

2.

Part A – Multiple Choice (1 mark each) A longitudinal section is taken:

a)

Across the narrow width of the building

b)

Along the length of the building

c)

At roof level only

d)

Only through a staircase

3.

Part A – Multiple Choice (1 mark each) A lateral (cross) section cuts through:

a)

The building’s centerline lengthwise

b)

The shorter side or width of the building

c)

The foundation plan

d)

The roof plan

4.

Part A – Multiple Choice (1 mark each) In AutoCAD Architecture, which tool helps create a 2D section directly from a 3D model?

a)

Line tool

b)

Section/Elevation tool

c)

Hatch tool

d)

Trim command

5.

Part A – Multiple Choice (1 mark each) Which of the following should always be labeled on a building section drawing?

a)

Room names only

b)

Furniture and fixtures

c)

Floor levels, ceiling heights, and materials

d)

Site boundary and landscaping

6.

Part B – True or False (1 mark each) Choose True or False: Longitudinal and lateral sections help show hidden structural details.

a)

True

b)

False

7.

Part B – True or False (1 mark each) Choose True or False: Sections are always drawn at a smaller scale than plans and elevations.

a)

True

b)

False

8.

Part B – True or False (1 mark each) Choose True or False: In AutoCAD Architecture, a section line can be inserted in plan view to generate a section view.

a)

True

b)

False

9.

Part B – True or False (1 mark each) Choose True or False: A section should include line weights to distinguish cut elements from background elements.

a)

True

b)

False

10.

Part B – True or False (1 mark each) Choose True or False: The ground line is not necessary when drawing a building section.

a)

True

b)

False

11.

Part A – Multiple Choice (1 mark each). The roof framing plan is drawn to show:

a)

The interior finishes of the roof

b)

The layout of structural members supporting the roof

c)

Trusses

d)

Purlins

12.

Part A – Multiple Choice (1 mark each). The main horizontal structural member that supports common rafters is called the:

a)

Joist

b)

Ridge board

c)

Purlin

d)

Hip rafter

13.

Part A – Multiple Choice (1 mark each). The sloping members that extend from the ridge to the wall plate are known as:

a)

Rafters

b)

Studs

c)

Common rafters

d)

Jack rafters

14.

Part A – Multiple Choice (1 mark each). In a hip roof, the diagonal members that form the external angle where two roof slopes meet are called:

a)

Valley rafters

b)

Hip rafters

c)

Common rafters

d)

Jack rafters

15.

Part A – Multiple Choice (1 mark each). When creating a roof framing plan in AutoCAD Architecture, which feature would best help ensure all rafters are aligned accurately?

a)

Trim command

b)

Snap and Ortho modes

c)

Hatch command

d)

Text tool

16.

Part B – True or False (1 mark each). Jack rafters are shorter rafters that connect the ridge board to the hip or valley rafter.

a)

True

b)

False

17.

Part B – True or False (1 mark each). Roof framing plans are always drawn at a larger scale than floor plans.

a)

True

b)

False

18.

Part B – True or False (1 mark each). The ridge board must be the same thickness as the rafters for proper alignment.

a)

True

b)

False

19.

Part B – True or False (1 mark each). In AutoCAD Architecture, roof elements such as hips, valleys, and ridges can be automatically generated using the Roof Tool.

a)

True

b)

False

20.

Part B – True or False (1 mark each). Overhangs are not shown on a roof framing plan.

a)

True

b)

False

21.

Part C – Short Answer and Practical (2 marks each). Explain the difference between a hip rafter and a valley rafter.

a)

A hip rafter forms the external corner where two roof planes meet; a valley rafter forms the internal corner where two roof planes meet.

b)

A hip rafter supports ceiling joists; a valley rafter supports wall studs.

c)

A hip rafter is horizontal; a valley rafter is vertical.

d)

A hip rafter is only used on gable roofs; a valley rafter is only used on flat roofs.

22.

Part C – Short Answer and Practical (2 marks each). State two key pieces of information that should be labeled on a roof framing plan.

a)

Rafter size and spacing

b)

Roof color and shingle brand

c)

Window schedule and furniture layout

d)

Landscaping details and driveway material

23.

Part C – Short Answer and Practical (2 marks each). In a hip roof, how do jack rafters differ from common rafters in placement and length?

a)

Jack rafters run from the wall plate to a hip or valley and are shorter; common rafters run from the ridge to the wall and are full-length within the span.

b)

Jack rafters are vertical supports under the ridge; common rafters are horizontal beams.

c)

Jack rafters run parallel to the ridge and are longer; common rafters run perpendicular to the ridge and are shorter.

d)

Jack rafters and common rafters are identical in placement and length.

24.

Part C – Short Answer and Practical (2 marks). Why is it important for a drafter to include dimensions and spacing on the roof framing plan?

a)

It ensures accurate construction, correct alignment of members, and reliable material estimation.

b)

It improves the visual appeal of the drawings for presentations.

c)

It replaces the need for structural specifications and engineering review.

d)

It allows interior decorators to choose finishes more easily.

25.

Part A – Multiple Choice (Circle the correct answer) The main purpose of a foundation is to: [1pt]

a)

Decorate the building

b)

Prevent structural settlement or failure

c)

Make walls easier to paint

d)

Provide ventilation

26.

Which material is used as a Visqueen vapour barrier in foundations? [1pt]

a)

Wire mesh

b)

Rebars

c)

Thick plastic sheet

d)

Concrete blocks

27.

Which of the following is a reinforcement material in concrete foundations? [1pt]

a)

Compact fill

b)

Rebars

c)

Pesticide

d)

Bearing surface

28.

A slab foundation is best described as: [1pt]

a)

A flat layer of concrete spread over compacted fill

b)

A column of concrete placed deep in the ground

c)

A wall of blocks above ground

d)

A wood post resting on soil

29.

Which of the following is placed under a concrete slab to prevent moisture from entering the building? [1pt]

a)

Rebars

b)

Bearing surface

c)

Visqueen vapour barrier

d)

Concrete blocks

30.

What is the main purpose of compacted fill in a foundation? [1pt]

a)

To decorate the ground surface

b)

To provide a stable, level base for construction

c)

To strengthen rebars

d)

To prevent insects from entering the building

31.

Which type of foundation uses posts or columns driven deep into the soil to carry heavy loads? [1pt]

a)

Slab foundation

b)

Pile foundation

c)

Masonry foundation

d)

T-foundation

32.

Why is pesticide sometimes applied during foundation construction? [1pt]

a)

To harden the soil

b)

To prevent termites and other pests from damaging the structure

c)

To make the soil waterproof

d)

To speed up concrete curing

33.

Concrete blocks come in different widths. Which of the following widths is NOT commonly available for foundation use? [1pt]

a)

2 in.

b)

4 in.

c)

6 in.

d)

18 in.

34.

Part B – True or False Wire mesh is used to strengthen concrete foundations. [1pt]

a)

True

b)

False

35.

A T-foundation is shaped like the letter T and used to support load-bearing walls. [1pt]

a)

True

b)

False

36.

Masonry foundations are always made of wood. [1pt]

a)

True

b)

False

37.

Part C – Short Answer List two things a foundation helps prevent in a building. [1pt]

a)

Structural settlement and moisture intrusion

b)

Moisture intrusion and wall paint fading

c)

Termite infestation and roof leaks only

d)

Window drafts and paint chipping

38.

Name three components (materials) commonly used in foundation construction. [3pts]

a)

Rebars

b)

Compact fill

c)

Pesticide

d)

Thick plastic sheet (Visqueen vapour barrier)

e)

Decorative paint

39.

Name one type of shallow foundation and one type of deep foundation and give a short description of each. [4pts]

a)

Slab foundation spread over compacted fill; pile foundation with posts driven deep into the soil

b)

T-foundation resting on untreated soil; slab foundation supported by wooden posts

c)

Masonry foundation built of wood; pile foundation made of lightweight foam columns

d)

Slab foundation used only above ground; pier foundation described as a thin plastic sheet under concrete

40.

Part C – Short Answer and Practical (2 marks each). Describe the role of rebar in concrete foundations.

a)

It provides tensile strength to the concrete.

b)

It is used to support insulation materials.

c)

It acts as a decorative element.

d)

It helps in waterproofing the foundation.