M93 - Chapter 2

Question 1

What is the Flash Point?

Answer 1

The point a solid, liquid or gas is heated to a temperature that makes it burn or explode.

Question 2

What is the Auto ignition temperature (AIT)?

Answer 2

For flammable liquids its where they automatically ignite, as long as oxygen is present.

Question 3

What two acts give regulation for safe storage of chemicals.

Answer 3

COSHH - Control of substances hazardous to health 2002

DSEAR - Dangerous Substances & explosive atmosphere regulations 2002

Question 4

4 tests to manage fire damage via Building Construction?

Answer 4

Minimise contribution via the fabric of the building - Use best materials to reduce first damage class ‘0’ finishes are the best according to BSA.

Restrict fire to place of origin - Use materials to ‘Compartmentalise’ the fire to one place

Preserve the structure - Asses if after a fire the core structures will be in tact (reducing claims costs)

Restrict External fire spread - Reduce the change of the fire spreading to other buildings.

Question 5

5 ‘New’ materials used in building construction as they are cheap, energy efficient and quick to construct.

Answer 5

Sandwich panels
Composite panels
Factory produced panels
Site-assembled panels
Built up cladding systems

Question 6

After several bad fires across UK/Europe in food processing plants - What two loss prevention standards were created?

Answer 6

LPS 1181 - Test and evaluate sandwich panels

LPS 1208 - Fire resistance test for compartment walls and floors to contain the fire.

Question 7

Maximum throw of a fire hose?

Answer 7

22.5m

Question 8

Different building grades

Answer 8

1 - Exceptional interest (2.5%)
2 - Special interest and particular importance (5.8%)
3 - National importance and of special interest (91.7%)

Question 9

5 Types of fire extinguisher

Answer 9

Water - Paper/wood

Foam - Burning liquid

CO2 - Electrical

Dry Powder - Burning liquid, electrical and to subdue solids for short period.

Wet Chemical - High temp fires EG Deep Fat Fryers

Halon - Not used as bad for environment

Question 10

3 Types of fire alarm

Answer 10

Manual - One bell or siren

Manual/Electric - Manually activate but sets off multiple alarms EG Break glass

Automatic - Sense temperature, smoke or radiation.

Question 11

3 Purposes of sprinkler system

Answer 11

1. Detect
2. Sound alarm
3. Control of fire

Question 12

Key points of the Regulatory Reform (Fire Safety) Order 2005

Answer 12

Applies to all properties to which the public have access (But not private homes or off-shore)

A ‘responsible person’ has to arrange for a fire risk assessment.

A ‘competent person’ must carry out the assessment and if over 5 people employed, record the findings.

Question 13

What does the Electricity at work regulations ACT 1989 make statutory law?

Answer 13

Makes maintenance of electrical systems a statutory requirement.

I think! This includes PAT testing.

Question 14

4 Types of sprinkler system

Answer 14

Wet pipe

Alternate

Dry pip

Pre-action/drencher

Question 15

How often do portable and non-portable appliances have to be checked by an Electrician legally?

Answer 15

Fixed/Non-portable - 5 Years

Portable - N/a

Question 16

What is generally considered normal room temp?

Answer 16

20c

Question 17

Armed with FP and AIT information, what will a surveyor be looking for?

Answer 17

Safety of storage arrangements

Safety of processes

Adequacy of fire detection and extinguishers

Question 18

What quantity of substances will a surveyor allow in a steel cabinet

Answer 18

50 Litre, anything more will need to be in an brick outbounding

Question 19

Basic purposes of buildings fire protection (4)

Answer 19

Minimise contribution from the building fabric - Ideally using class ‘0’ materials

Restrict fire to the room of origin (Compartmentation)

Preserve the structure

Restrict external fire spread

Question 20

Typical materials used in in building construction

Answer 20

Brickwork

Steel work

Stonework

Steelwork (Normally requires fire protection) will last about 30 minutes at 600c

Aluminium (Weakens significantly at 200c) & melts (550c - 650c)

Question 21

New types of building construction

Answer 21

PODS - Prefabricated Modular Construction

SIPS - Structurally insulated panel systems

Both are cheap and easy to build, they offer low structural integrity and there is little loss information, so the remain seldom used.

They are used to construct class rooms and chalets.

Question 22

2 x other types of building construction

Answer 22

Timber Framed - Quick and simple to build, lower fire resistance.

Cladding - Grenville tower.

Question 23

For vertical fire spread in buildings, non-combustible materials are essential to prevent fire spread, why is metal not so good?

Answer 23

It heats up, and radiates heat to floors around. (Mainly up)

Question 24

How does fire spread horizontally

Answer 24

By consuming combustible materials available, EG stock outside.

Site planning and compartmentalisation is important to prevent this issue, the fire can spread quick and fire brigade can be far away

Question 25

What special extinguishers should be used on metal and gas?

Answer 25

Gas - Dry powder, but generally extinguishers should not be used owing to explosion risk.

Metal - Dry Sand

Question 26

Types of detection equipment used with fire alarms

Answer 26

Fixed temp - Trigger when I pre-determined temp is reached

Compensated Heat Detectors - Detect sudden rises, however still needs pre-determined limit to pick up any slow heat rises

Smoke Detectors

Very early smoke detection (VESD) - Uses and aspirating smoke detector. Draws in smoke via pipes and tests before sounding alarm. Very good for clean rooms.

Question 27

Further types of firm detection

Answer 27

Control panels - Must be professional installed, and has indicator board to shown where a detector has tripped. An outdoor alarm bell must be situated near the panel to alert nearby staff.

Signalling - Connects the board to fire brigade via an approved fire alarm depot or a permanently manned security room of an approved private fire brigade.

Question 28

Discounts for fire brigade response

Answer 28

Max Minutes……….

5 - 15%
10 - 10%
15 - 5%