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 all correct answers must be identified.

Good luck

Sustainability and steel construction

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

69%
79%
89%
99%

In buildings designed to take advantage of thermal mass, what is the optimum depth of concrete upper floor slabs?

50mm
90mm
150mm
200mm

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

80%
60%
40%
25%

Which of these are sustainability credentials of structural steel?

High structural efficiency
Offsite construction
Low waste
Infinitely recyclable

Under BREEAM 2011, what overall score is required to achieve an ‘Excellent’ rating?

45%
55%
70%
85%

What is the current cost per tonne for UK landfill tax for non-hazardous waste?

£8
£24
£32
£64

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

Of the nine environmental categories covered in BREEAM 2011, which requirements are generally the most challenging and most costly to a achieve BREEAM ‘Excellent’ or ‘Outstanding’ rating?

Materials
Land use and ecology
Energy
Pollution

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

Concrete
Steel
Timber
They are all the same

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