OP 001/002

Question 1

At what temperature will flaming occur on the surface of timber?

Answer 1

350°c

Question 2

Timber used as a structural element often has a what?

Answer 2

A sacrificial layer

Question 3

Unprotected structural steel loses how much of its strength at 600°c, causing it to sag and twist

Answer 3

Two-thirds

Question 4

What does the fire resistance of reinforced concrete depend on?

Answer 4

• total thickness
• type of aggregate
• size of the re-enforcing steel work

Question 5

The fire resistance of timber depends on 3 factors. What are they?

Answer 5

• thickness of timber
• type of wood
• any treatment of the timber

Question 6

Which construction method includes: structural steel frame, reinforced concrete, portal frame, lightweight steel, timber construction, prefabricated or modular systems?

Answer 6

Frame construction

Question 7

Why does the effect of a fire on floors cause the building to collapse?

Answer 7

High walls are unsupported

Question 8

Which of the following statements about roof construction is false?

Answer 8

False - The timbers used to make nailed roof truces are thicker than those used in older roofs

Question 9

Which of the following are dangers of sandwich panels?

Answer 9

• rapid fire spread
• produces toxic fumes
• loss of structural integrity
• core materials degrade rapidly

Question 10

On hearing the evacuation signal, what 4 actions should a firefighter take?

Answer 10

• repeat the signal
• withdraw as quickly and safely as possible
• leave any equipment
• report to the booking-in-point

Question 11

Which best describes solid construction (sometimes referred to as traditional masonry construction)

Answer 11

Has load bearing walls of brick, stone or concrete

Question 12

Which one IS NOT an element of a structure?

Answer 12

Ground floor

Question 13

Expansion of the inner face of a wall due to heat bowing the wall out of vertical will cause what?

Answer 13

Building collapse