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Assignment Task

 

Building classification questions

 

For each of these questions, you need to specify the building classification(s) for the building described. For each answer, you must specify the BCA clause where you obtained the answer and briefly justify the reasons for choosing your answer.

 

Question 1. What is the classification of a public laundry?

 

Question 2. What is the classification of a fire station?

 

Question 3. What is the classification of the building shown below?

 

Question 4. What is the classification of the building shown below?

 

Question 5. What is the classification of a dwelling house used as a doctor’s surgery?

 

Multiple choice questions

 

For each of these questions, you need to choose the most appropriate answer. For each answer, you must specify the BCA clause where you obtained the answer and briefly justify the reasons for choosing your answer.

 

Question 6. What is the total distance of travel to the exit in this building?

 

(a) A + B

 

(b) A only

 

(c) A + B + C

 

(d) B only

 

 

 

Question 7. What FRL do the walls of a fire-isolated stair need to achieve in an office building with a rise in storeys of 3?

 

(a) 120/120/120

 

(b) 90/90/90

 

(c) No FRL

 

(d) 180/180/180

 

Question 8. What FRL do the doors to the fire-isolated stair in question 7 need to achieve?

 

(a) 90/90/90

 

(b) No FRL

 

(c) -/120/120

 

(d) -/60/30

 

Question 9. Plasterboard is a combustible material. When can it be used as part of a wall that is required to be non-combustible?

 

(a) Never

 

(b) Always

 

(c) Only if the building is sprinkle red

 

(d) It may be able to be used but this would have to be confirmed as part of a fire engineered Performance Solution

 

Question 10. What type of construction does this building need to be built to?

 

(a) Type A

 

(b) Type B

 

(c) Type C

 

(d) Type A and type B

 

Question 11. Is timber framed veneer construction an acceptable DTS construction method for a 2 storey childcare centre?

 

(a) Yes, but only if the building is provided with sprinklers.

 

(b) Yes, if the child care centre accommodates less than 200 children.

 

(c) No, never.

 

(d) Yes, but only if the external part of the wall is non-combustible.

 

Question 12. To what standard does the BCA require wall-wetting sprinklers?

 

(a) AS2118.2-2010

 

(b) The BCA specifies no standard

 

(c) AS2118.1-1999

 

(d) AS2419.1-2005

 

Question 13. Is there a DTS alternative to installing portable fire extinguishers in a warehouse building to cover Class A risks?

 

(a) No.

 

(b) Yes, if you install sprinklers in the building to cover the hazard, you do not need to provide portable fire extinguishers.

 

(c) Yes, if you install fire hose reels you do not need to provide portable fire extinguishers.

 

(d) Yes, if you provide internal fire hydrants you do not need to provide portable fire extinguishers.

 

Question 14. What is the easiest and most appropriate way to determine the FRL achieved by a reinforced concrete wall poured on site?

 

(a) Provide details of the wall to a registered structural engineer and have him or her certify the FRL that the wall achieves.

 

(b) Contact the concrete supplier and advise them of the thickness of the wall.

 

(c) Obtain specifications of the concrete from the supplier.

 

(d) Provide details of the wall and all other supporting building elements to a registered structural engineer and have him or her certify the FRL that the wall achieves.

 

Question 15. Below is a floor plan of the fifth storey of a Class 2 residential flat building. Does the exit travel distance from unit 3 comply with the DTS requirements of the BCA?

 

(a) It depends on what the travel distance within the unit is.

 

(b) Yes

 

(c) No

 

(d) Yes, but only if the building is sprinkle red as per Specification E1.5a.

 

 

Question 16. A plasterboard walling system that achieves an FRL of 90/90/90 is proposed to be used in a Class 2 type A building to separate the sole-occupancy units. Is this an acceptable DTS solution?

 

(a) No, the FRL is inadequate to achieve compliance.

 

(b) Yes, but only if the wall is non-loadbearing.

 

(c) Yes, this will comply in all cases as the FRL is correct as per Specification C1.1 for both loadbearing and non-loadbearing walls.

 

(d) Yes, but only if the wall also complies with Clause C1.8.

 

Question 17. Does the BCA have any requirements in relation to fire safety measures in buildings whilst they are under construction?

 

(a) No, this is outside the scope of the BCA. The BCA only includes requirement for completed buildings.

 

(b) Yes.

 

(c) Yes, the but only for buildings above 2 storeys.

 

(d) Yes, but only for buildings containing basement levels not counted in the rise in storeys.

 

Question 18. To which standard does a sprinkler system need to be installed to in a Class 5 building over 25 metres in effective height?

 

(a) AS2118.4-2012

 

(b) AS2118.1-2017

 

(c) AS2118.4-1999

 

(d) AS2118.1-2019

 

Question 19. Which of the following situations are compliant for a flight of required exit stairs?

 

(a) A total of 19 risers each 190 mm high and goings 315 mm.

 

(b) A total of 15 risers each 115 mm high and goings 260 mm.

 

(c) A total of 17 risers each 180 mm high and goings 300 mm.

 

(d) A total of 16 risers each 195 mm high and goings 290 mm.

 

Question 20. What is the allowable gap between members of a barrier to a fire-isolated stair?

 

(a) Gaps such that a 125 mm sphere could not pass through the barrier.

 

(b) Gaps such that a 100 mm sphere could not pass through the barrier.

 

(c) There is no requirement for gaps for barriers to fire-isolated stairs.

 

(d) Gaps such that a 300 mm sphere could not pass through the barrier.

 

Question 21 – service penetrations (10 marks)

 

Describe, in your own words, all the ways that service penetrations through fire resisting construction are able to be protected to comply with the requirements of the DTS provisions of the BCA. 

You must discuss what each option practically involves and give an example of each (some options may not need examples as they will be self-explanatory).

 

Question 22 – fire exits

 

A nightclub is being fitted out on the twelfth storey of a multi-storey building. 

The approved plans for the nightclub show 4 exits provided by way of four fire-isolated stairs. 

Unfortunately, only 3 fire doors have been ordered in error. 

The builder would like to infill the doorway to one of the fire-isolated exit stairs so that only 3 exits are provided so that the project is not delayed.

Describe the process that you would follow to check whether the building will still comply with the DTS requirements of the BCA with 3 exit doors.

 

Question 23 - emergency lighting

 

Review the floor plan below and determine what parts of the building require emergency lighting and why. 

You must make reference to the appropriate clauses and sub clauses of the BCA.

 

Question 24 - sprinkler system concessions (300 words max)

 

Describe the concessions given to Class 2 and 3 buildings that are sprinkle red as per Specification E1.5a of the BCA and discuss why these concessions are or aren’t appropriate.

 

Provide appropriate evidence to back up what you are saying.

 

Question 25 - smoke hazard management

 

For the subject building described below, identify the following:

 

(a) The smoke hazard management measures required to be provided to serve the building as per Part E2 of the BCA.

 

(b) Whether the measures need to be provided to the whole building or only part of the building.

 

(c) Whether the measures need to be monitored by a fire alarm monitoring system.

 

(d) Whether the measures need to be connected to a Building Occupant Warning System (BOWS).

 

Present your answer in the following table format:

 

 

The subject building

 

A single storey, single fire compartment, retail building with a floor area of 6000 m2 and a ceiling height of 4m.

 

The building contains 2 shops with a floor area of 2100m2 each, and 10 shops with a floor area of 120m2 each.

The remainder of the building is occupied by an internal mall, service corridors, plant room and sanitary facilities.

Each shop opens onto the internal mall. The two large shops also open directly to open space.

 

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