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IFSTA Pumping Apparatus Driver/Operator > Chapter 15 Foam Equipment and Systems > Flashcards

Chapter 15 Foam Equipment and Systems Flashcards

1
Q

Which of the following is NOT needed to produce quality fire fighting foam?

A

A. Air
B. Water
C. Vacuum pumps*
D. Mechanical aeration

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2
Q

Which of the following is a Class B hydrocarbon?

A

A. Alcohol
B. Acetone
C. Crude oil*
D. Lacquer thinner

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3
Q

Which of the following is a Class B polar solvent?

A

A. Fuel oil
B. Gasoline
C. Benzene
D. Ketones*

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4
Q

T or F: Class B foams designed solely for hydrocarbon fires will not extinguish polar solvent fires.

A

True

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5
Q

T or F: Many foams intended for polar solvents may be used on hydrocarbon fires.

A

True

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6
Q

Most fire fighting foam concentrates are intended to be mixed with:

A

94 to 99.9 percent water.

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7
Q

Which foams are not proportioned as other foams?

A

Class A foams

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8
Q

Dry, thick foam suitable for exposure protection and fire breaks requires a:

A

higher percentage of foam.

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9
Q

Wet (thin) foam that rapidly sinks into a fuel’s surface requires a:

A

lower percentage of foam.

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10
Q

Using a foam proportioner that is not compatible with the delivery device can result in:

A

unsatisfactory foam or no foam at all.

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11
Q

Which of the following storage methods are usually 5-gallon (20 L) sized and made of plastic?

A

A. Pails*
B. Totes
C. Barrels
D. Apparatus tanks

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12
Q

Which of the following storage methods are found on municipal and industrial pumpers, foam tenders, and ARFF apparatus?

A

A. Pails
B. Totes
C. Barrels
D. Apparatus tanks*

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13
Q

Which of the following storage methods are usually 55-gallon (220 L) sized and made of plastic?

A

A. Pails
B. Totes
C. Barrels*
D. Apparatus tanks

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14
Q

Which of the following storage methods are found in 275-gallon (1 100 L) sizes and are used for bulk storage of foam concentrate?

A

A. Pails
B. Totes*
C. Barrels
D. Apparatus tanks

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15
Q

Which of the following storage methods eliminate the need to use separate pails or barrels?

A

A. Pails
B. Totes
C. Barrels
D. Apparatus tanks*

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16
Q

Which of the following storage methods are perhaps the most common containers used by the municipal fire service?

A

A. Pails*
B. Totes
C. Barrels
D. Apparatus tanks

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17
Q

Which of the following storage methods are most common in industrial applications?

A

A. Pails
B. Totes
C. Barrels*
D. Apparatus tanks

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18
Q

Which of the following storage methods range from 20 to 200 gallons (80 L to 800 L)?

A

A. Pails
B. Totes
C. Barrels
D. Apparatus tanks*

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19
Q

Which of the following storage methods are durable and not affected by the corrosive nature of foam concentrates?

A

A. Pails*
B. Totes
C. Barrels
D. Apparatus tanks

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20
Q

Which of the following storage methods should be equipped with a pressure vacuum vent?

A

A. Pails
B. Totes
C. Barrels
D. Apparatus tanks*

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21
Q

Which of the following would NOT be a typical use for Class A foam?

A

A. Structure fire
B. Coal mine fire
C. Flammable liquid fire*
D. Tire storage fire

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22
Q

Class A foams should be used on:

A

Class A fuels only.

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23
Q

Class A foam has a shelf life of as much as ___ years if properly stored.

A

20

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24
Q

T or F: Class A foam is safe to be applied directly into bodies of water.

A

False

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25
Q

Which of the following devices is NOT commonly used with Class A foams?

A

A. Fog nozzles
B. Straight stream nozzles*
C. Aerating foam nozzles
D. Compressed-air foam systems

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26
Q

Which of the following would be a typical use for Class B foam?

A

A. Structure fire
B. Coal mine fire
C. Wildland fire
D. Combustible liquid fire*

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27
Q

Which of the following may be used to apply Class B foam?

A

A. Fog nozzles*
B. Straight stream nozzles
C. Aerating foam nozzles
D. Compressed-air foam systems

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28
Q

Which of the following are considered safer for the environment?

A

A. All Class A foams
B. All Class B foams
C. Protein-based Class B foams*
D. Synthetic-based Class B foams

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29
Q

Protein-based foams have a shelf life of about ___ years.

A

10

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30
Q

Synthetic-based foams are made from:

A

fluorosurfactants.

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31
Q

Which of the following is the most commonly used foam today?

A

A. Fluoroprotein foam
B. Regular protein foam
C. Aqueous film forming foam*
D. Film forming fluoroprotein foam

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32
Q

Which of the following has a detergent base?

A

A. Fluoroprotein foam
B. Regular protein foam
C. High expansion foam*
D. Aqueous film forming foam

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33
Q

Which of the following is derived from naturally occurring sources of protein such as hoof, horn, or feather meal?

A

A. Fluoroprotein foam
B. Regular protein foam*
C. Aqueous film forming foam
D. Film forming fluoroprotein foam

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34
Q

Which of the following is based on fluoroprotein foam technology with AFFF capabilities?

A

A. Fluoroprotein foam
B. High expansion foam
C. Aqueous film forming foam
D. Film forming fluoroprotein foam*

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35
Q

Which of the following degrades faster in storage than synthetic foam?

A

A. Fluoroprotein foam
B. Regular protein foam*
C. Aqueous film forming foam
D. Film forming fluoroprotein foam

36
Q

Which of the following has a low water content, which minimizes water damage?

A

A. Fluoroprotein foam
B. High expansion foam*
C. Aqueous film forming foam
D. Film forming fluoroprotein foam

37
Q

Which of the following is derived from protein foam concentrates to which fluorochemical surfactants are added?

A

A. Fluoroprotein foam*
B. Regular protein foam
C. High expansion foam
D. Film forming fluoroprotein foam

38
Q

Which of the following is completely synthetic?

A

A. Fluoroprotein foam
B. Regular protein foam
C. High expansion foam
D. Aqueous film forming foam*

39
Q

Which of the following is rarely used in the fire service today?

A

A. Fluoroprotein foam
B. Regular protein foam*
C. Aqueous film forming foam
D. Film forming fluoroprotein foam

40
Q

Which of the following provides a strong “security blanket” for long-term vapor suppression?

A

A. Fluoroprotein foam*
B. Regular protein foam
C. Aqueous film forming foam
D. Film forming fluoroprotein foam

41
Q

Which of the following are the most basic type of foam proportioner?

A

A. Jet ratio controllers
B. In-line foam eductors*
C. Foam nozzle eductors
D. Self-educting master stream foam nozzles

42
Q

Which of the following are used where flows in excess of 350 gpm (1 400 L/min) are required?

A

A. Jet ratio controllers
B. In-line foam eductors
C. Foam nozzle eductors
D. Self-educting master stream foam nozzles*

43
Q

Which of the following operate on the same principle as the in-line eductor, but the eductor is built into the nozzle rather than into the hoseline?

A

A. Jet ratio controllers
B. In-line foam eductors
C. Foam nozzle eductors*
D. Self-educting master stream foam nozzles

44
Q

Which of the following are a type of in-line eductor that allow the foam concentrate supply to be as far away as 3,000 feet (900 m) from the self-educting master stream foam nozzle?

A

A. Jet ratio controllers*
B. In-line foam eductors
C. Foam nozzle eductors
D. Self-educting master stream foam nozzles

45
Q

Which of the following compromise firefighter safety?

A

A. Jet ratio controllers
B. In-line foam eductors
C. Foam nozzle eductors*
D. Self-educting master stream foam nozzles

46
Q

Which of the following are designed to be either directly attached to the pump panel discharge or connected at some point in the hose lay?

A

A. Jet ratio controllers
B. In-line foam eductors*
C. Foam nozzle eductors
D. Self-educting master stream foam nozzles

47
Q

Which of the following allow an elevation change of up to 50 feet (15 m)?

A

A. Jet ratio controllers*
B. In-line foam eductors
C. Foam nozzle eductors
D. Self-educting master stream foam nozzles

48
Q

With in-line foam eductors, the nozzle and in-line eductor must have the same:

A

rating in gpm (L/min).

49
Q

Which of the following is the simplest means of proportioning foam?

A

A. Batch mixing*
B. Around-the-pump proportioners
C. Bypass-type balanced pressure proportioners
D. Variable-flow variable-rate direct injection systems

50
Q

Which of the following include a special version called a bypass proportioner that is used to reduce the friction loss across the eductor?

A

A. Batch mixing
B. Installed in-line eductor systems*
C. Bypass-type balanced pressure proportioners
D. Variable-flow variable-rate direct injection systems

51
Q

Which of the following can be done at any time, anywhere, and with any equipment?

A

A. Batch mixing*
B. Installed in-line eductor systems
C. Bypass-type balanced pressure proportioners
D. Variable-flow variable-rate direct injection systems

52
Q

Which of the following CANNOT be used with alcohol-resistant foam concentrates?

A

A. Batch mixing
B. Installed in-line eductor systems
C. Variable-flow variable-rate direct injection systems*
D. Variable-flow demand-type balanced pressure proportioners

53
Q

Which of the following are controlled by monitoring the water flow and controlling the speed of a positive displacement foam concentrate pump?

A

A. Batch mixing
B. Installed in-line eductor systems
C. Bypass-type balanced pressure proportioners
D. Variable-flow variable-rate direct injection systems*

54
Q

Which of the following consist of a small return (bypass) water line connected from the discharge side of the pump back to the intake side of the pump?

A

A. Batch mixing
B. Around-the-pump proportioners*
C. Bypass-type balanced pressure proportioners
D. Variable-flow variable-rate direct injection systems

55
Q

Which of the following are one of the most accurate methods of foam proportioning?

A

A. Batch mixing
B. Around-the-pump proportioners
C. Bypass-type balanced pressure proportioners*
D. Variable-flow variable-rate direct injection systems

56
Q

Which of the following are most commonly used in large-scale mobile apparatus applications such as airport crash vehicles and refinery fire fighting apparatus?

A

A. Around-the-pump proportioners
B. Bypass-type balanced pressure proportioners*
C. Variable-flow variable-rate direct injection systems
D. Variable-flow demand-type balanced pressure proportioners

57
Q

Which of the following have foam concentrate supplied from either pickup tubes inserted into 5 gallon (20 L) pails or from foam concentrate tanks installed on the apparatus?

A

A. Installed in-line eductor systems*
B. Around-the-pump proportioners
C. Bypass-type balanced pressure proportioners
D. Variable-flow variable-rate direct injection systems

58
Q

Which of the following use the same principles of operation as do portable in-line eductors, but are attached to the apparatus pumping system?

A

A. Batch mixing
B. Installed in-line eductor systems*
C. Variable-flow variable-rate direct injection systems
D. Variable-flow demand-type balanced pressure proportioners

59
Q

Apparatus equipped with these proportioners have a foam concentrate line connected to each fire pump discharge outlet.

A

Bypass-type balanced pressure proportioners

60
Q

Which of the following operate off power supplied form the apparatus electrical system?

A

A. Installed in-line eductor systems
B. Around-the-pump proportioners
C. Bypass-type balanced pressure proportioners
D. Variable-flow variable-rate direct injection systems*

61
Q

Which of the following are rated for a specific flow and should be used at this rate?

A

A. Installed in-line eductor systems
B. Around-the-pump proportioners*
C. Bypass-type balanced pressure proportioners
D. Variable-flow variable-rate direct injection systems

62
Q

Which of the following have a variable-speed mechanism that drives a foam concentrate pump?

A

A. Batch mixing
B. Installed in-line eductor systems
C. Variable-flow variable-rate direct injection systems
D. Variable-flow demand-type balanced pressure proportioners*

63
Q

Which of the following is only used with regular AFFF and Class A concentrates?

A

A. Batch mixing*
B. Installed in-line eductor systems
C. Variable-flow variable-rate direct injection systems
D. Variable-flow demand-type balanced pressure proportioners

64
Q

Which of the following is “any nozzle that one to three firefighters can safely handle and that flows less than 350 gpm (1 400 L/min)”?

A

A. Handline nozzle*
B. Smoothbore nozzle
C. Master stream foam nozzle
D. High-expansion foam generator

65
Q

Which portable foam application devices are limited to Class A, CAFS applications?

A

Smoothbore nozzles

66
Q

Which portable foam application devices break the foam solution into tiny droplets and use the agitation of water droplets moving through air to achieve the foaming action?

A

Fog nozzles

67
Q

Which portable foam application devices CANNOT be used with protein and fluoroprotein foams?

A

Fog nozzles

68
Q

Which portable foam application devices induct air into the foam solution by a venturi action?

A

Air-aspirating foam nozzles

69
Q

Which portable foam application devices are the only types of nozzles that can be used with protein and fluoroprotein concentrates?

A

Air-aspirating foam nozzles

70
Q

Which portable foam application devices are required to deliver adequate amounts of foam on large-scale flammable and combustible liquid fires?

A

Master stream foam nozzles

71
Q

For high-expansion foam, the air content ranges from:

A

20:1 to 1,000:1

72
Q

The air-aspirating type of medium- and high-expansion foam generators are very similar to other foam-producing nozzles except that they are:

A

much larger and longer.

73
Q

A mechanical blower foam generator is limited to:

A

High-expansion foam

74
Q

T or F: The primary concern to the environment of Class A and Class B foams is the impact of finished foam after it has been applied to a fire or spill.

A

True

75
Q

T or F: The biodegradability of these foams in either solution or concentrate is determined by the rate at which environmental bacteria dissolve or degrade the foam.

A

True

76
Q

T or F: The decomposition process of these foams results in the production of oxygen.

A

False

77
Q

T or F: It is appropriate for foam concentrates, solutions, or finished foam to be discharged into any body of water.

A

False

78
Q

T or F: Environmental issues for AFFF concentrate include chemicals such as glycol ethers.

A

True

79
Q

Durable agents retain their fire retarding properties:

A

a longer time than Class A foam.

80
Q

Which of the following is NOT another name for durable agents?

A

A. Gelling agents
B. Fire blocking gels
C. Film forming gels*
D. Aqueous fire fighting gels

81
Q

Durable agents are used in the same way as ___, but are chemically and structurally quite different.

A

Class A foams

82
Q

Durable agents are:

A

water-absorbent polymers.

83
Q

Durable agents are considerably ___ than Class A foams.

A

more expensive

84
Q

Durable agents are normally applied at a ratio of ___ for fire extinguishment.

A

1%

85
Q

Durable agents are normally applied at ___ for line construction.

A

1½ to 2%

86
Q

Durable agents are normally applied at ___ for structure protection.

A

2 or 3%

IFSTA Pumping Apparatus Driver/Operator (17 decks)

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