The Shard - Structural fire engineering quiz

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Please answer the following 5 multiple choice questions, then click 'submit' to check the result. The pass mark for a CPD certificate is 4 out of 5, 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

The Shard - Structural fire engineering

Which of the following were part of the fire performance solution agreed for the Shard?

On the steel framed floor, 90 minutes fire resistance on the primary beams with no protection to the secondary beams. 120 minutes fire resistance to the columns.
The transfer truss protected assuming a lower than default failure temperature to achieve 120 minutes fire resistance
Fire protection to the exposed concrete floors
An unprotected spire

The standard fire test has served us well for over 50 years but it has significant drawbacks. Which of the following were identified as such?

Only a limited size specimen can be accommodated within the furnace due to practical size.
The test specimen is unrestrained whereas real structures exhibit a lot of restraint.
The standard fire test uses an unrepresentative fuel
The standard test time-temperature relationship does not represent what happens in real fire development

The presentation described how factors that can affect fire intensity and structural performance in the building were varied. Which of the following were included?

Medium and high fire loads
High and low levels of ventilation
Short and long duration fires
All of the above

Which of the following do not require consideration when following the prescriptive requirements of Approved Document B but which might be considered in a fire engineering assessment

The effect of deformation on compartment walls
The increased threat from fire in tall buildings
Identification of key elements required for structural stability
Real fires rather than reliance on the standard fire test

In a compartment fire, as the atmosphere temperature in the top layer reaches a critical level - radiation from that layer instantaneously ignites all other combustibles in the compartment . The resulting rapid rise in temperature is often termed what?

Runaway
Flashover
Spontaneous ignition
Backdraught