2nd Part

Question 1

characterized as the:

• cooling-temperature reduction
• smothering-oxygen dilution
• fuel removal
• inhibition-breaking the chemical reaction

Answer 1

fire extinguishment theory

Question 2

fire extinguishment theory:

• use something that absorb heat
• use water being the best cooling agent
• use foam which contains 94% water

Answer 2

reduction of heat

Question 3

fire extinguishment theory:

• secure the door at close position
• displacement or diluting oxygen by means of CO2
• blanketing- using wet blanket as foam

Answer 3

exclusion or deprivation of oxygen

Question 4

fire extinguishment theory:

• shut off fuel supply
• relocate flammable/combustible materials

Answer 4

removal of fuel

Question 5

fire extinguishment theory:

• break the combustion chain

Answer 5

inhibition of chain reaction

Question 6

true or false:

fire is classified according to the fuel it consumes

Answer 6

true

Question 7

classification of fire:

ordinary combustibles or fibrous material, such as wood, paper, cloth, rubber and some plastics

Answer 7

class A

Question 8

classification of fire:

flammable or combustible liquids such as gasoline, kerosene, paint, paint thinners and propane

Answer 8

class B

Question 9

classification of fire:

energized electrical equipment, such as appliances, switches, panel boxes and power tools

Answer 9

class C

Question 10

classification of fire:

certain combustible metals, such as magnesium, titanium, potassium and sodium; they may react violently with water or other chemicals, and must be handled with care

Answer 10

class D

Question 11

classification of fire:

fires involving combustible cooking fluids such as oils and fats

Answer 11

class K

Question 12

what are the important safety elements?

Answer 12

• alarms (smoke and carbon monoxide)
• fire extinguishers
• residential fire sprinkler systems

Question 13

alarm placement and maintenance

• check them _____
• change the batteries _____
• replace them _____

Answer 13

once a month
once a year
every 10 years

Question 14

it is an invisible, odorless, colorless gas; there is no way to detect it without an alarm

Answer 14

carbon monoxide (CO)

Question 15

true or false:

symptoms of CO poisoning mimic flu-like symptoms

Answer 15

true

Question 16

true or false:

high levels of CO can be fatal, causing death within minutes

Answer 16

true

Question 17

true or false:

fire sprinkler systems save lives and reduce damage to your property

Answer 17

true

Question 18

true or false:

only the sprinkler closest to the fire will activate, spraying water directly on the fire

Answer 18

true

Question 19

_____% of fires are contained by the operation of just one sprinkler

Answer 19

90

Question 20

it is a handy, first aid fire fighting equipment

Answer 20

fire extinguisher

Question 21

parts of fire extinguisher

Answer 21

discharge lever
discharge locking pin and seal
discharge hose
discharge nozzle
discharge orifice
body
data plate
carrying handle
pressure gauge (not found on CO2 extinguisher)

Question 22

how to use a fire extinguisher?

Answer 22

P- pull the pin
A- aim the nozzle
S- squeeze the lever
S- sweep side to side at the base of the fire

Question 23

classifications of fire extinguishers:

• an environmentally preferred alternative to halon with zero-ozone depleting potential (ODP)
• Montreal protocol & RA 8749 (aka The Philippine Clean Air Act) compliant
• recommended for A, B and C types of fire

Answer 23

hexafluoropropane HFC-236fa (FE-36) - clean agent

Question 24

classifications of fire extinguishers:

• today’s most widely used type of fire extinguisher that is effective on class A, B and C fires
• this agent also works by creating a barrier between the oxygen element and the fuel element on class A fires

Answer 24

dry chemical

Question 24

classifications of fire extinguishers:

• this type of fire extinguisher puts out the fire by taking away the heat element of the fire triangle
• foam agents separate the oxygen element from the other elements

Answer 24

aqueous film forming foam (AFFF)

Question 25

water extinguishers are for _____ – although they can sometimes be used on class B fires; the discharge stream could spread the flammable liquid in a class B fire if the mixture of the fire agent is inaccurate, or could create a shock hazard on a class C fire

Answer 25

class A fires only

Question 26

it is a new agent that extinguishes the fire by removing the heat of the fire triangle and prevents re-ignition by creating a barrier between the oxygen and fuel elements

Answer 26

wet chemical

Question 27

these extinguishers were developed for modern, high efficiency deep fat fryers in commercial cooking operations; some may be used on class A fire in commercial kitchens

Answer 27

wet chemical or class K extinguishers

Question 28

these extinguishers are similar to dry chemical except that they extinguish the fire by separating the fuel from the oxygen element or by removing the heat element of the fire triangle

Answer 28

dry powder extinguishers