Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Fire lieutenant Exam > SOP > Flashcards

SOP Flashcards

1
Q

What is a dielectric fluid found in many transformers
and capacitors?

A

Polychlorinated biphenyls (PCBs)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are PCBs used for?

A

increasing or decreasing electrical power

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what are the four types of coolants for transformers?

A
  1. Air
  2. Mineral oil
  3. askarel
  4. Silicone
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is Askarel?

A

insulating fluid which contains 50% PCBS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Are askarel and PCBS materials chemically stable and have low flammability?

A

true

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the trade names for PCBS and askarel?

A

Inerteen and Pyranol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Why are mineral oils dangerous??

A

they are used for coolants for transformers and contaminated with PCBs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Does silicone coolant fluids contain PCBs?

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Why are PCBS the most stable organic chemicals known?

A

Low dielectric constant and high boiling point make them ideal for use as dielectric fluid fluids in electrical capacitors and transformers.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are some of the advantage of PCBs?

A

low dielectric constant
low volatility
good fire resistance
low water solubility
high solubility in organic solvents
good ageing properties, with no deterioration in service

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are some of the disadvantages of PCBs fluid?

A

non-biodegradable
persistent in the environment
able to accumulate in fatty tissues in the body
suspected of being carcinogenic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is created if PCBs is burning?

A

very toxic chemicals are formed. PCBs produced furans because of their great stability and oleophilic nature which means the fatty tissues of humans and animals easily absorb them.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what are the side effects of PCBs on humans?

A

Failure of kidneys and other human organs
excessive and intensive headaches if inhaled and chloracne if absorbed through the skin.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What companies serviced transformers?

A

Electric utility companies ie MBTA, Conrail, B&M

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the two types of labels used to identify locations and where equipment containing PCBs are found?

A
  1. a yellow 9in diamond shaped placard with black lines containing DOT number for PCBs (2315)
  2. second label is attached directly to transformers and other high voltage equipment 6 in square with bold black letters
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What type of transformers are a source of PCBs?

A

Railroad transformers its classified separately by the federal government

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Does capacitors and pole transformers present the same problems as transformers in vaults?

A

no because its found outside on poles, have fewer fire incidents and contain lesser amount of fluid.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are the procedures for capacitors and pole transformers incident?

A

avoid contact with fluid
isolate the area and wait for utility employees to take charge of the spill
do not flush with water
doke and contain if possible
never assume that the unit has been de-energized
if fire occurs, wear full PPE and SCBA and use DRY Chemical
never contact any downed wires or lines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What to do in the event of an unknown condition of the transformer?

A

implement the BFD/ICS
initial size up wearing PPE and SCBA
informed conditions ie location of fire, material involved, extent and magnitude of fire

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What to do if a confirmed PCB incident occurs?

A

Incident commander shall upgrade the incident to Level 3 Hazardous materials

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What are involve in electrical incidents in manholes?

A

Cables only or cables and high voltage transformers and switchgears

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is the incident commander duty when responding to electrical incident?

A

determine who owns the manhole

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Due to the potential for explosion or the release of toxic fumes what should be worn?

A

All protective gear including SCBA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Who should Fire Alarm office dispatch involve a Eversource manhole incident?

A

One Engine, one Ladder and the nearest Hazmat company with the special FireIce retardant and application equipment.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Where should the company commander place the apparatus during a eversource manhole incident?

A

Company Commanders shall place the apparatus and position the members to avoid any contact
with or inhalation of fumes or smoke from the manhole.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

If the first arriving companies observed smoke or flames coming from the manhole what should be done?

A

secure the area and establish a hot zone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What the purpose of FireIce?

A

unique powder when added to water produces a gel for insulating and extinguishing burning electrical cables at manholes which reduces the levels of carbon monoxide and minimizing secondary explosions.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

FireIce is approved for what type of fire?

A

Class C (electrical fires)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

FireIce or water shall never be directed into manholes belonging to who?

A

MBTA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

What can be done if FireIce was not avaible?

A

flooding the manhole with water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

How many feet should you flow or pour water into the manhole?

A

25 feet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

FireIce is a potassium-based dry powder that produces a firefighting gel. What size hose line can it be educted into?

A

1 3/4 hose lines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Hazmat companies carry how containers of FireIce agent?

A

(4) 25 lb. containers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

What type of equipment is included with FireIce agent?

A

specifically designed nozzle/tip with built in eductor and shutoff
25’ lenght of 3/4 hose connected to the eductor with a pick up tube attached
25 pound containers of FireIce
system supplied by a 1 3/4 handline

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

What type of effect is used to educted the FireIce agent?

A

Venturi effect

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

What type of motion should the members employ?

A

vacuuming motion with the tube in order to draw the product up to the nozzle.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

What should the nozzle pressure be while operating FireIce agent?

A

60-100 psi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

What is the safe distance while operating the nozzle with FireIce agent?

A

50 feet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

After establishing an adequate gel solution, the nozzle team may advance toward the manhole while maintaining a minimum safe distance of what?

A

25 feet from the manhole opening

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

What can be used to accurately judge the distances?

A

a dry 50 foot length of hose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

About how many foot should the member direct the stream of FireIce solution?

A

one foot of the manhole opening

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

How long should you keep the stream flowing until?

A

any arcing or burning cable subsides

43
Q

What kind of hazard can cause the mixture of FireIce and water?

A

slippery hazard

44
Q

What type of measures should be taken after FireIce solution was used?

A

granular absorbent, DPW sander, area taped off

45
Q

MSDS product sheets list the product as both a mild eye and respiratory irritant. How should the members operate?

A

upwind from the product and to refrain from positioning themselves directly over the product container

46
Q

Cleaning and storage: Once operation has concluded how long should flush the nozzle for?

A

nozzle should be flushed with fresh water for a a minimum of 30 seconds.

47
Q

What companies are FireIce Units?

A

Engine 22 Ladder 15
Engine 33 Ladder 16
Engine 53 Special unit
SOC Units

48
Q

what level of carbon monoxide do you need to be exposed to be considering poisoning?

A

200 ppm for several hours or more

49
Q

What are of the symptoms of victim who is exposed to 200 ppm?

A

slight headache, fatigue, dizziness and nausea after two or three hours.

50
Q

What are of the symptoms of victim who is exposed to 400 ppm?

A

Frontal headache within one to two hours. Three hours of exposure
at this level should be considered life threatening.

51
Q

What are of the symptoms of victim who is exposed to 800 ppm?

A

Dizziness, nausea and convulsions within 45 minutes. Two hours
of exposure at this level should be considered life threatening and death may
result in two to three hours.

52
Q

What are of the symptoms of victim who is exposed to 1600 ppm?

A

Headache, dizziness and nausea within 45 minutes and death may
result within one hour.

53
Q

List examples of fuels that produce CO when burned?

A

gasoline, oil, natural gas, wood, kerosene, charcoal, propane, underground wire insulation.

54
Q

What is the correct method to survey the atmosphere with a gas meter?

A

raise the meter above the operator’s head, then slowly bring the meter down to one foot of the ground

55
Q

How does the carbon monoxide detectors warn of dangerous levels?

A

beep 4 to 5 times in a row about every 4 seconds

56
Q

How does the CO detectors warn of low battery?

A

chirp once every 15 seconds

57
Q

End of life warning of CO detectors?

A

chirping every 30 seconds after 7 years. chirp will not stop until unit is powered off. Alarm will not respond to elevated CO levels

58
Q

CO readings of 35 ppm or less

A

inform the occupant CO detection did not detect an elevated CO Do not evacuate or ventilate the premises

59
Q

CO readings of more than 35 ppm but less than 100 ppm

A

inform occupant that CO meter detected a Potentially dangerous level of CO. Immediately evacuate and ventilate the premises, request for EMS

60
Q

CO readings is 100 ppm or greater

A

inform the occupant the CO meter detects a potentially lethal level of CO. Immediately evacuate and ventilate the premise and request EMS.
Upgrade to level 1 carbon monoxide hazmat event. request District Chief

61
Q

Documentation of Carbon Monoxide

A

brand name and model number of carbon monoxide detection device. detailed narrative which includes utility company, notice of violation ordering the occupant/owner to not restore the defective appliance.

62
Q

Any liquid that has a closed-cup flash point below 37.8°
C (100°F), and a Reid Vapor Pressure nor exceeding 2068 mm Hg (40 psia) at 37.8°C
(100°F)

A

Flammable liquid

63
Q

A fluid in the cryogenic liquid state that is composed
predominantly of methane and that can contain minor quantities of ethane, propane,
nitrogen, and other components normally found in natural gas.

A

Liquid natural gas

64
Q

That concentration of a combustible material in
air below which ignition will not occur. Also known as the lower explosive limit (LEL).

A

Lower Flammable Limit (LFL)

65
Q

An odorant, which provides natural gas with a distinctive, rotten eggtype odor. It is added into the natural gas pipelines after the Local Distribution Company
(LDC) receives the gas from transmission lines or LNG transportation. Transmission
Line companies may also odorize the gas they transport. Mercaptan has a specific gravity
of 0.845. Because the Mercaptan is heavier than natural gas, a situation could arise where
you can smell the odorant but the natural gas could have already dissipated

A

Mercaptan

66
Q

Standard for the Production, Storage, and Handling of Liquefied Natural Gas (LNG), Chapter 12.

A

NFPA 59A

67
Q

Standard for Recommended Practice for Handling Releases of Flammable and Combustible Liquids and Gases.

A

NFPA 329

68
Q

Natural gas is predominately composed of methane gas, between

A

85 and 95 percent

69
Q

Natural gas is non-toxic, however, it may displace

A

oxygen and that can result in asphyxiation if a person is in a confined space

70
Q

Air has a specific gravity of 1 and natural gas has a specific gravity of

A

0.6, approximately half the weight of air. Therefore, natural gas is lighter than air, which will cause it to rise. Venting manholes, homes, businesses, and other structures will allow natural gas to rise and dissipate into the outside environment.

71
Q

Grade 1 gas leak

A

A gas leak that represents an existing or probable hazard to persons or property, and requires immediate repair or continuous action until
conditions are no longer hazardous. Emergency entry into surrounding homes, businesses or shelters may be needed as part of the gas odor investigation. During
this time, the gas company will monitor the area.

72
Q

Grade 2 leak

A

A leak that is recognized as being non-hazardous at time of detection, but justifies scheduled repair based on probable future hazard

73
Q

Grade 3 leak

A

A leak that is non-hazardous at time of detection and can be reasonably expected to remain non-hazardous

74
Q

What are the two operating pressure categories for LDC systems?

A

Low Pressure System and Elevated Pressure System

75
Q

What is low pressure system?

A

is a gas distribution system that is
operated at a low pressure usable by appliances. In such a system, no service regulator is required on the customer’s gas service, which operates at
approximately ¼ lb. per square inch

76
Q

What is a elevated pressure system?

A

which is comprised of Intermediate Pressure
(IP) and High Pressure (HP). These gas distribution systems are operated at a pressure higher than the appliance utilization pressure. In such a system, a service regulator is required on each service line to reduce the pressure delivered to the
customer

77
Q

City of Boston is predominately comprised of what system?

A

low and intermediate pressure system

78
Q

Natural gas will burn if any mixture of gas in air is greater than

A

5 % and less than 15 % and ignition source is present

79
Q

What is the leanest possible mixture that will support combustion?

A

Lower Explosive unit

80
Q

What is the richest possible mixture that will support combustion?

A

Upper Explosive Limit

81
Q

If the mixture is too rich gas combustion is

A

incomplete

82
Q

if the structure containing a fuel level greater than the upper explosive limit is

A

ventilated

83
Q

What are the sources of ignition?

A

Gas and diesel engines running, static electrical charge,
doorbell, electric light switch, telephone/cell phone, flashlight, pilot light, electronic ignition, refrigerator, and communication tools not intrinsically safe, including
departmental radios.

84
Q

What are the ignition temperature of various gases?

A

Acetylene is 580 F
Butane is 760 F
Propane is 920 F
Natural gas is 1200 F
Gasoline is 800 F, its not a gas

85
Q

Yellow Marking indicates

A

Gas, oil, steam, petroleum

86
Q

Blue marking indicates

A

potable water

87
Q

Red marking indicates

A

Electric power lines, cables, conduit and lighting cables

88
Q

Green marking indicates

A

sewer and drain lines

89
Q

Orange marking indicates

A

communication, alarm or signal lines

90
Q

White marking indicates

A

Proposed excavation

91
Q

Should burning natural gas be extinguished?

A

no unless there is an immediate life hazard

92
Q

Main service Valve

A

underground valve is operable by a specialized key. ONLY gas company should turn these valves

93
Q

Shut of Valves

A

Valve should never be turned ON if it was OFF. ONLy gas company is authorized to turn it back on.

94
Q

Service Regulators

A

device is installed on gas services in IP or HP areas to reduce the gas pressure.

The regulators is located after the service riser shut off valve but before the gas meter.

95
Q

Tracing Wire

A

usually found wrapped around the exposed portion of an outside gas service this marking wire is an indication of underground plastic pipe. The wire is used for tracing the location of the pipe and is not electrified.

96
Q

Fire valves

A

A piece of equipment installed at the inlet side of the meter, which, under heat of approximately 150 F, will spring a lead ball to block the flow of gas into
the meter. Found primarily on meters installed inside a building.

97
Q

Combustible Gas Indicator (CGI Meter)

A

An instrument used to detect a natural
gas leak. This instrument will need to be calibrated on a monthly basis to ensure proper and accurate indications

98
Q

Mobile Flame Ionization Detection Equipment

A

Systems that consist of a supersensitive detector cell, either mounted in a vehicle or used as a portable machine, which takes samples of air over the surface of pavement or land and analyzes them.

99
Q

How should you test for gas leak?

A

High to low. Natural gas is lighter than air and will rise

100
Q

Natural gas escaping outside of a building

A

notify FAO
approach up wind direction

101
Q

Natural gas escaping inside a building

A

Notify FAO
Do Not turn electrical switches inside building
Turn off gas service at meter set valve

102
Q

High pressure pipe gas leak with no fire

A

Notify FAO call Algonquin Gas and Spectra Energy Gas control
Evacuate one quarter mile in all directions

103
Q
A

Fire lieutenant Exam (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions