Ontario Building Code Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Ontario Building Code Exam. Utilize multiple choice questions and detailed explanations. Ace your test with our comprehensive study materials!

Start Multiple Choice Practice Test
Start Flash Cards

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Which of the following is not a requirement for a fire-rated wall assembly in a residential building?

  1. Non-combustible materials

  2. Labeled with a fire rating

  3. Continuous from floor to underside of roof sheathing

  4. Minimum thickness of 50 mm

The correct answer is: Minimum thickness of 50 mm

A residential building must have a fire-rated wall assembly to prevent the spread of fire and protect the occupants. This assembly must meet certain requirements, such as being made of non-combustible materials, labeled with a specific fire rating, and extending continuously from the floor to the underside of the roof sheathing. However, a minimum thickness requirement of 50 mm is not a necessary requirement for a fire-rated wall assembly. This is because the primary focus of a fire-rated wall is to prevent the spread of fire, not necessarily to provide physical strength. Therefore, option D is incorrect.

More Questions Like This