Understanding Roofs and Trusses Quiz

Which of the following is a characteristic feature of a gable roof?

• It has a single sloping surface.

• It has two sloping sides that meet at a ridge.

• It is flat with no slope.

• It has four sloping sides meeting at a point.

What is the main purpose of a truss in roof construction?

• To provide insulation.

• To support the roof structure and transfer loads to the walls.

• To improve the appearance of the roof.

• To allow for roof ventilation.

Which type of roof is commonly used for extensions and has only one sloping surface?

• Hip roof

• Mansard roof

• Lean-to roof

• Gambrel roof

What is the typical angle range for a pitched roof in domestic construction in Great Britain?

• 5°–10°

• 15°–25°

• 30°–45°

• 60°–75°

Which of the following is NOT a common type of roof truss?

• King post truss

• Queen post truss

• Fink truss

• Barrel truss

• 22°

• 45°

• 30°

• 60°

What is the main advantage of using prefabricated trusses over traditional cut roofs?

• They are heavier.

• They require more on-site labour.

• They are quicker and easier to install.

• They are less accurate.

A hip roof differs from a gable roof in that:

• It has only one sloping side.

• 4 sides slope downwards to the walls.

• It is always flat.

• It has a central ridge with vertical ends.

Match the picture to the name:

• Lean-to-roof

• 
• Mono pitch roof

• 
• Gable end

• 
• Hipped roof

• 
• Gable end valley roof

• 

Place the name in the correct box

a

b

c

d

e

f

g

Wall plate

Perlin

King post

Top chord

Common rafter

Queen post

Ridge board