Sustainability and steel construction quiz

Please answer the following 10 multiple choice questions, then click 'submit' to check the result. The pass mark for a CPD certificate is 8 out of 10, and you may retake the quiz as many times as you wish, but the questions will vary! Please note that one, two, three or all of the possible answers presented for each question may be right, and to gain a mark for that question all correct answers must be identified.

Good luck

Sustainability and steel construction

Which of the following common construction materials is NOT 'downcycled' when recovered from demolished buildings?

Timber
Brick
Steel
Concrete

In the Green Guide to Specification (4th ed) which of the following commercial and industrial upper floor specifications has the highest rating?

Power floated in-situ reinforced concrete floor slab
Power floated post-tensioned in-situ reinforced concrete floor slab
Power floated in-situ reinforced concrete slab on ‘deep’ profiled metal decking
Power floated in-situ reinforced concrete slab on ‘shallow’ profiled metal decking

In single storey buildings, which element of the building is responsible for the greatest proportion of the overall embodied carbon footprint of the building?

Foundations and ground floor slab
Bearing structure
Walls
Roof

When assessing the environmental impact of buildings or construction products, what scope of assessment should be used to obtain the most accurate results?

Cradle to gate
Cradle to grave
Cradle to gate with options
It makes no difference

New, non-domestic buildings in the UK will need to be ‘zero carbon’ in operation by?

2013
2016
2019
2050

What is the 2050 UK national reduction target (relative to 1990) for greenhouse gas emissions?

80%
60%
40%
25%

What is the combined reuse and recycling rate for UK structural steel sections?

69%
79%
89%
99%

What are the estimated annual arisings from construction, demolition and excavation activities in the UK?

40 million tonnes
80 million tonnes
120 million tonnes
150 million tonnes

Based on the Target Zero findings, what is the approximate cost (in terms of % of capital cost) to achieve a BREEAM ‘Excellent’ rating for a commercial office building?

0.5%
0.8%
1.5%
5%

Of these following common construction materials, which has the best end-of-life recycling credentials?

Concrete
Steel
Timber
They are all the same