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

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

69%
79%
89%
99%

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

Concrete
Steel
Timber
They are all the same

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

£8
£24
£32
£64

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

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

2013
2016
2019
2050

Which phase of the building life cycle is currently responsible for the greatest proportion of carbon emissions?

Design
Construction
In-use
Demolition

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

50mm
90mm
150mm
200mm

Which of these are sustainability credentials of structural steel?

High structural efficiency
Offsite construction
Low waste
Infinitely recyclable

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%