NBC 2015 -Section 3.4 - 03
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NBC 2015 -Section 3.4 - 03

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According to the National Building Code of Canada 2015, what is the maximum angle at which stairs should be inclined?

  • 60°
  • 30°
  • 45° (correct)
  • 75°

    • According to the National Building Code of Canada 2015, what is the maximum height of risers on stairs?

  • 180 mm
  • 200 mm
  • 220 mm
  • 210 mm (correct)

    • According to the National Building Code of Canada 2015, what is the minimum width of a fire escape?

  • 550 mm (correct)
  • 650 mm
  • 700 mm
  • 600 mm

    • According to the National Building Code of Canada 2015, what is the minimum headroom required for a stairway?

    <p>1,950 mm</p> Signup and view all the answers

    According to the National Building Code of Canada 2015, what is the maximum number of persons a fire escape can serve?

    <p>15 persons</p> Signup and view all the answers

    Which type of locks are permitted on exit and egress doors, as long as certain conditions are met?

    <p>All of the above</p> Signup and view all the answers

    Under what conditions are exit and egress doors allowed to be equipped with locks?

    <p>All of the above</p> Signup and view all the answers

    What is the maximum travel distance allowed from an unlocked door to a locked door on a different floor area?

    <p>2 storeys</p> Signup and view all the answers

    What type of locks are permitted on doors that prevent entry into a floor area from an exit stair?

    <p>Locks that require a master key</p> Signup and view all the answers

    What is the minimum size requirement for Arabic numerals indicating the assigned floor number on the wall at the latch side of doors to exit stair shafts?

    <p>60 mm high</p> Signup and view all the answers

    According to the National Building Code of Canada, which of the following is a requirement for glass used in door leaves and enclosure panels?

    <p>It must be safety glass conforming to CAN/CGSB-12.1-M</p> Signup and view all the answers

    Which of the following doors must have release hardware to permit easy opening from the inside?

    <p>All of the above</p> Signup and view all the answers

    Under what force should a door equipped with a latching mechanism be able to swing wide open?

    <p>90 N</p> Signup and view all the answers

    Which of the following is a requirement for electromagnetic locks on doors, other than those leading directly from a high-hazard industrial occupancy?

    <p>All of the above</p> Signup and view all the answers

    What is a requirement for emergency lighting at each door?

    <p>It must be provided at each door</p> Signup and view all the answers

    According to the National Building Code of Canada 2015, which of the following is true about horizontal exits with 2 doors?

    <p>The doors should be mounted adjacent to each other with the door on the right side swinging in the direction of travel through the horizontal exit</p> Signup and view all the answers

    What is the maximum height allowed for a threshold in an exit doorway?

    <p>13 mm higher than the surrounding finished floor surface</p> Signup and view all the answers

    In which of the following situations is an exit door permitted to open onto more than one step?

    <p>When there is a risk of blockage by ice or snow</p> Signup and view all the answers

    Which of the following is true about the direction of door swing for exit doors?

    <p>They should open in the direction of exit travel</p> Signup and view all the answers

    What is required for an exit door that is normally required to be kept closed?

    <p>It should have a self-closing mechanism</p> Signup and view all the answers

    Which type of lock is permitted to be installed on doors in Group B, Division 2 and Division 3 occupancies?

    <p>Locks without latches, pins, or similar devices</p> Signup and view all the answers

    Under what circumstances does an electromagnetic lock release in a building equipped with a fire alarm system and sprinklers?

    <p>All of the above</p> Signup and view all the answers

    What is the required height for the installation of door hardware for doors referred to in this Section?

    <p>1,200 mm above the finished floor</p> Signup and view all the answers

    When are the requirements of Sentence 3.4.6.16.(1) permitted to be waived for exit and egress doors in a building used exclusively for retail merchandise?

    <p>If the building is sprinklered throughout</p> Signup and view all the answers

    What is the required width for exit and egress facilities required for evacuation of persons other than the public from a floor area or a part of a floor area?

    <p>Based on the maximum number of persons other than the public</p> Signup and view all the answers

    What are the requirements for curved flights used as exits?

    <p>b) Curved flights with handrails on each side</p> Signup and view all the answers

    What are the requirements for tapered treads within a flight?

    <p>a) Consistent angle and uniform run and rise dimensions</p> Signup and view all the answers

    What is the required floor area on each side of a horizontal exit?

    <p>a) Sufficient to accommodate the occupants of both floor areas</p> Signup and view all the answers

    What is the maximum projection allowed for handrails in vestibules, enclosed balconies, or bridges used as parts of a horizontal exit?

    <p>c) 100 mm</p> Signup and view all the answers

    What is not allowed to be used in a horizontal exit?

    <p>b) Stairs</p> Signup and view all the answers

    True or false: The zone referred to in Sentence (1) extends from any balcony, platform or stairway of a fire escape to a distance of 3 m horizontally.

    <p>True</p> Signup and view all the answers

    True or false: Stairs shall have risers not more than 210 mm high.

    <p>True</p> Signup and view all the answers

    True or false: Stairway headroom shall be not less than 1 600 mm plus the height of one riser measured vertically above the nosing of any tread or platform.

    <p>False</p> Signup and view all the answers

    True or false: The width of a fire escape shall conform to Articles 3.4.3.1. to 3.4.3.3.

    <p>True</p> Signup and view all the answers

    True or false: If a flight of stairs leading to the ground at the foot of a fire escape is not fixed in position, it shall be held in the raised position without a latch or locking device.

    <p>True</p> Signup and view all the answers

    True or false: The width of a fire escape can be reduced to 550 mm if it serves not more than 3 storeys and not more than 15 persons.

    <p>True</p> Signup and view all the answers

    True or false: Stairs shall be inclined at an angle of not more than 30° with the horizontal.

    <p>False</p> Signup and view all the answers

    True or false: The maximum height of risers on stairs is 220 mm.

    <p>False</p> Signup and view all the answers

    True or false: The minimum width of a fire escape is 550 mm.

    <p>False</p> Signup and view all the answers

    True or false: Stairway headroom shall be not less than 1 950 mm plus the height of one riser measured vertically above the nosing of any tread or platform.

    <p>True</p> Signup and view all the answers

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