Chapter 15: Fire Protection Systems Flashcards
Fixed _____ sprays are designed specifically to provide optimum control, extinguishment, or exposure protection for special fire protection problems.
Select one:
a.
Foam
b.
Gas
c.
Water
d.
Purple-K
e.
Oil
c.
Water
The procedure for the first person on the scene of a fire should:
1. Sound the fire alarm.
2. Complete a risk assessment of the situation.
3. Attempt to extinguish or control the fire.
4. Turn away and leave the fire.
Select one:
a.
1, 4
b.
2, 3
c.
1, 3
d.
1, 2, 4
e.
1, 2, 3
e.
1, 2, 3
A2C15Q03 The water pressure at the topmost outlet of each standpipe should not be less than _________ with a flow rate in the system of 32 litres per second (L/s).
Select one:
a.
650 kPa
b.
450 kPa
c.
450 Pa
d.
700 kPa
b.
450 kPa
Heat detectors are generally located on or near the:
Select one:
a.
Floor
b.
Walls
c.
Ceiling
d.
Roof top
e.
Exits
c.
Ceiling
A2C15Q04 The dry pipe system is the design used in environments where the temperature could become less than 4°C. The piping normally contains air under pressure, at a maximum of _______.
Select one:
a.
275 kPa
b.
450 kPa
c.
275 Pa
d.
450 Pa
a.
275 kPa
A2C15Q02 The rate of rise detector will function when the rate of temperature increase exceeds a predetermined value, typically ______________________.
Select one:
a.
Around 2°C to 4°C per second
b.
Around 7°C to 8°C per minute
c.
Around 7°C to 8°C per second
d.
Around 5°C to 12°C per minute
b.
Around 7°C to 8°C per minute
________ was developed at the U.S. Naval Research Laboratory primarily to provide very rapid fire extinguishment or knockdown capabilities.
Select one:
a.
ARC
b.
PFC
c.
DFFG
d.
Purple-K
e.
NFPA
d.
Purple-K
One way to detect freezing in a hydrant is:
Select one:
a.
Open the hydrant fully and listen for water
b.
Lower a weight on a stout string into the hydrant to see if it strikes ice or water
c.
Pressurize the hydrant with gas
d.
Strike the hydrant with a hammer and listen for the ringing sound
e.
Feel the temperature of the metal
b.
Lower a weight on a stout string into the hydrant to see if it strikes ice or water
A2C15Q09 Emergency response procedures are established to ensure the immediate and competent handling of emergencies involving any unplanned occurrences, such as accidents or property threatening events like __________.
Select one:
a.
Explosions
b.
Fires
c.
Earthquakes
d.
Riots
b.
Fires
A central foam distributing system for a process building consists of an enclosure that houses a foam concentrate supply tank and a _____ device.
Select one:
a.
Dividing
b.
Mixing
c.
Separating
d.
Floating
e.
Proportioning
e.
Proportioning
When a fire pump system is installed, what are the minimum requirements that must be followed?
Select one:
a.
The advice of the engineer who is designed the system
b.
Company’s policy to protect equipment and employees
c.
Insurance underwriters’ recommendations
d.
NFPA Standard 20
e.
Local fire marshall’s recommendations
d.
NFPA Standard 20
For average conditions, hydrants are normally placed about _____ from buildings.
Select one:
a.
10 m
b.
12 m
c.
15 m
d.
25 m
e.
30 m
b.
12 m
A2C15Q08 When supplied with a foam solution, sprinkler system piping grids that are equipped with foam-water nozzles generate air-foam in essentially the same sprinkler pattern as when water is discharged from the same nozzle. This dual capability affords the system with __________ extinguishment ability.
Select one:
a.
Class B and C
b.
Class A and B
c.
Class C and D
d.
Class A and C
b.
Class A and B
Which of the following extinguishers would ordinarily be used to combat a Class C fire?
1. Carbon dioxide
2. Foam
3. Dry chemical
4. Water
Select one:
a.
1, 2
b.
1, 3
c.
2, 3
d.
1, 4
e.
3, 4
b.
1, 3
Which of the following could have a Class C fire?
Select one:
a.
Lumber pile
b.
Generator coils
c.
Coal pile
d.
Fuel tank
e.
Paint can
b.
Generator coils
Deluge systems are intended to deliver _____ quantities of water over a _____ area in a relatively ______ period of time.
Select one:
a.
Small, large, short
b.
Large, large, short
c.
Small, small, long
d.
Large, small, long
e.
Changing, large, long
b.
Large, large, short
When fighting a fire with a standpipe system, why are the connections on the floor below the fire frequently used?
1. This allows the use of the connections on the fire floor as well.
2. The fire is approached from below rather than above.
3. They are larger connections.
4. It is easier to go up than down.
Select one:
a.
1, 4
b.
2, 3
c.
3, 4
d.
1, 2
e.
1, 2, 3, 4
d.
1, 2
Standpipe systems are used in buildings over _____ in height, since that is the practical limit for firefighters to couple hose together from the pump truck at street level up the stairways to the fire floor.
Select one:
a.
2 stories (12 m)
b.
3 stories (14 m)
c.
5 stories (25 m)
d.
10 stories (50 m)
e.
15 stories (75 m)
b.
3 stories (14 m)
Dry pipe systems are found in environments where the temperature is maintained below_____________.
Select one:
a.
–2°C
b.
0°C
c.
2°C
d.
4°C
e.
5°C
d.
4°C
A smoke detector will detect most fires much _____ than a heat detector.
Select one:
a.
Slower
b.
More rapidly
c.
More accurately
d.
More inaccurately
e.
Later
b.
More rapidly
Which of the following could have a Class B fire?
Select one:
a.
Coal pile
b.
Electrical panel
c.
Pile of paper
d.
Oil tank
e.
Lumber pile
d.
Oil tank
Which of the following could have a Class A fire?
Select one:
a.
Fuel tank
b.
Generator coil
c.
Coal storage pile
d.
Oil storage tank
e.
Paint storage
c.
Coal storage pile
To prevent freezing of an industrial firewater system, a safe rule to follow is to ensure the top of the buried pipe is not less than _____ below the lowest frost line for the locality.
Select one:
a.
0.3 m
b.
0.5 m
c.
1.0 m
d.
1. 5 m
e.
2.0 m
a.
0.3 m
A2C15Q10 _________ fires occur in the vapour-air mixture over the surface of flammable liquids such as greases, gasoline, and lubricating oils.
Select one:
a.
Class C
b.
Class A
c.
Class B
d.
Class D
c.
Class B
Fire protection of a large outdoor fuel tank requires that several foam makers be installed slightly below the _____ of the tank.
Select one:
a.
Bottom
b.
Middle manway
c.
Top rim
d.
Centre
e.
Normal liquid level
c.
Top rim
Wet pipe sprinkler systems are found in which of the following?
1. Office buildings
2. Stores
3. Manufacturing facilities
4. Hotels
5. Health care facilities
Select one:
a.
1, 2, 3
b.
2, 3, 4
c.
3, 4, 5
d.
1, 3, 5
e.
1, 2, 3, 4, 5
e.
1, 2, 3, 4, 5
A fire extinguishing agent based on mixtures of ammonium phosphates and sulfates is referred to as _____________..
Select one:
a.
Mixed chemical
b.
Multi-purpose dry chemical
c.
Aqueous foam
d.
Red-B
e.
Purple-K
b.
Multi-purpose dry chemical
The best method of thawing a frozen fire hydrant is with a:
Select one:
a.
Vacuum truck
b.
Propane torch
c.
Steam hose
d.
Methanol tank
e.
Water truck
c.
Steam hose
Which of the following could have a Class D fire?
Select one:
a.
Cloth and paper
b.
Lubricating oils
c.
Magnesium
d.
Live electrical wire
e.
Ordinary combustibles
c.
Magnesium
The fixed water spray piping system is connected to a water supply through a _____ valve that can be actuated both automatically and manually to initiate the flow of water.
Select one:
a.
Water
b.
Globe
c.
Control
d.
Deluge
e.
Double ported
d.
Deluge
