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

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

Which of these are sustainability credentials of structural steel?

High structural efficiency
Offsite construction
Low waste
Infinitely recyclable

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

Based on the Target Zero studies, what ‘energy demand’ is responsible for the greatest proportion of regulated operational carbon emissions in new, non-domestic buildings?

Heating
Cooling
Lighting
Hot water

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

80%
60%
40%
25%

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

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

50mm
90mm
150mm
200mm

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

Design
Construction
In-use
Demolition

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

Timber
Brick
Steel
Concrete