TK Flashcards
(100 cards)
1
Q
- To test for methane, use a methane detector or chemical _______ .a. evaluation b. analysis c. study
A
analysis
2
Q
- Carbon monoxide can be detected by means of carbon monoxide ________, multi-gas detectors, or by chemical analysis.a. spotters b. indicators c. detectors
A
detectors
3
Q
- Nitrogen dioxide is produced by burning and by the of explosives.a. detonation b. ignition c. exploding
A
detonation
4
Q
- A mixture of coal dust in air reduces the explosive limit of .a. hydrogen b. methane c. oxygen
A
methane
5
Q
- One and one-half to two percent methane with coal dust in air may be explosive.a. found b. together c. mixed
A
together
6
Q
- below the water table tend to have more methane than those above the water table.a. Mines b. Areas c. Entries
A
Mines
7
Q
- After a fire or explosion in a mine, rescue teams are usually needed to go into the mine to assess and re-establish .a. control b. damage c. ventilation
A
ventilation
8
Q
- The of concentrations within which a gas will explode are known as its “explosive range”.a. limit b. amount c. range
A
range
9
Q
- Any flammable gas can explode under conditions.a. uncertain b. extreme c. certain
A
certain
10
Q
- Indirect firefighting methods allow firefighters to remain a safe distance from the .a. fire b. danger c. heat
A
fire
11
Q
- Temporary seals are before permanent seals are erected in order to seal off a fire area as quickly as possible.a. used b. built c. constructed
A
built
12
Q
- In where head coal (roof coal) is left, a fire will spread more rapidly.a. mines b. areas c. situations
A
mines
13
Q
- One hazard of heat during a fire is that it tends to the roof, especially where head coal is left.a. loosen b. deteriorate c. weaken
A
weaken
14
Q
- Fires can be by the use of a foam generator from a distance of 500-1,500 feet.a. fought b. attacked c. contained
A
attacked
15
Q
- It is recommended that teams not travel through foam filled areas.a. usually b. always c. generally
A
generally
16
Q
- One method of indirect firefighting is the sealed fire area with water.a. flooding b. spraying c. filling
A
flooding
17
Q
- Once an explosion has occurred, there is always the of further explosions.a. risk b. chance c. possibility
A
possibility
18
Q
- Mine rescue teams may it necessary to use line brattice to sweep noxious or explosive gases from a face area.a. deem b. find c. think
A
find
19
Q
- ventilation has been re-established and fresh air advanced, non-apparatus crews can take over the rehabilitation and cleanup effort.a. Once b. After c. If
A
Once
20
Q
- Rescue teams are responsible for damage to the ventilation system.a. evaluating b. finding c. assessing
A
assessing
21
Q
- the team relays to the fresh-air base as it proceeds is known as the “progress report”.a. Evidence b. Information c. Communication
A
Information
22
Q
- It is the responsibility of rescue team members to have all the information to do the work.a. needed b. necessary c. available
A
needed
23
Q
- When a team locates a body, its location and position should be on a mine map and on the roof or rib close to the body.a. written b. recorded c. marked
A
marked
24
Q
- The rescue team captain should the team’s pace according to conditions encountered.a. control b. regulate c. set
A
regulate
25
25. When a body is first located, every effort should be made not to any possible evidence in the area.a. erase b. disrupt c. disturb
disturb
26
26. In situations too hazardous for teams to explore and reventilate safely, teams may be to seal the area.a. advised b. instructed c. told
instructed
27
27. New mine rescue team members must have at least 20 hours of instruction on the breathing apparatus by the team.a. used b. worn c. owned
used
28
28. Before the team leaves the fresh-air base to travel inby, the should take note of the time of departure.a. team b. mapman c. captain
captain
29
29. It is recommended that team checks be conducted every minutes.a. 10 to 15 b. 15 to 20 c. 5 to 10
15 to 20
30
30. It is recommended that the stop for a team check be just inby the fresh-air base.a. initial b. first c. required
first
31
31. For teams using a compressed oxygen breathing apparatus, the captain usually each team member’s gauge reading at each rest stop and reports the lowest reading to the fresh air base.a. shouts b. checks c. notes
notes
32
32. “Tying in” is the process by which you explore all crosscuts and adjacent areas as you advance.a. usually b. systematically c. must
systematically
33
33. As the team advances , the captain takes the lead.a. underground b. inby c. systematically
underground
34
34. It is important that the team pace its so that it can return to the fresh air base on time.a. travel b. work c. effort
work
35
35. As the team , the map man records what the team encounters by marking the information on a mine map.a. travels b. advances c. explores
advances
36
36. The team is responsible for the exact sites within headings for building seals.a. choosing b. finding c. selecting
choosing
37
37. causes a lack of orientation which may cause a team member to lose his/her sense of balance.a. Dizziness b. Smoke c. Darkness
Smoke
38
38. Class B fires involve or combustible liquids.a. burnable b. ignitable c. flammable
flammable
39
39. Class D fires involve metals.a. combustible b. flammable c. ignitable
combustible
40
40. Before using a hand held extinguisher it must be for the type of fire you are fighting.a. tested b. checked c. approved
checked
41
41. Solubility is the ability of a to be dissolved in water.a. vapor b. fume c. gas
gas
42
42. Pools of water can water soluble gases into the air when they are stirred up.a. release b. create c. dissolve
release
43
43. High expansion foam is light and and can travel long distances to a fire without breaking down.a. durable b. resilient c. reliable
resilient
44
44. Low expansion foam is very wet and heavy and can only be used when you’re close enough to a fire to the foam directly onto the fire.a. force b. spray c. shoot
force
45
45. is explosive.a. Hydrogen b. Methane c. Carbon monoxide
Carbon monoxide
46
46. is a supporter of combustion.a. Air b. Oxygen c. Methane
Oxygen
47
47. If smoke is so as to make visibility poor, you may need to keep in constant physical contact with a rail, a compressed air or water line, or the rib in order to feel your way along.a. thick b. dense c. dark
dense
48
48. Two of fire cannot be fought directly, fuel rich and spon com (spontaneous combustion), these will be extinguished only by remote controls.a. kinds b. sorts c. types
types
49
49. Team safety must not be compromised. Although “Time is never your friend” do not be in too a hurry and do not permit others to hurry.a. big b. great c. much
great
50
50. Monitoring pressures and gases helps determine what is the danger of explosion, how soon have to move to safety, how effective are the techniques being used and is the fire under control.a. rescuers b. responders c.
firefighters
51
51. dioxide and hydrogen sulfide are water soluble gases. a. Sulfur b. Carbon c. Nitrogen
Sulfur
52
52. Color, odor, and taste are physical that help to identify gases during barefaced exploration. a. elements b. properties c. things
proerties
53
53. detectors and chemical analyses can positively identify a gas.a. Usually b. Sometimes c. Only
Only
54
54. The effects of gases depend on the concentration, toxicity, and exposure time. a. poisonous b. inert c. toxic
toxic
55
55. Asphyxiants are which cause suffocation or choking. a. gases b. fumes c. vapors
gases
56
56. is a mixture of methane in air that will burn or explode when ignited. a. Afterdamp b. Firedamp c. Blackdamp
Firedamp
57
57. If there is a sufficient amount of hydrocarbons in smoke, the may be explosive. a. air b. atmosphere c. smoke
smoke
58
58. Ventilation controls are used underground to properly distribute air to all of the mine. a. areas b. sections c. airways
sections
59
59. Gases with specific gravities than 1.0 tend to seek high places. a. lower b. more c. less
less
60
60. Gases with specific gravities than 1.0 tend to seek low places. a. higher b. greater c. more
greater
61
61. In order to maintain an airlock, one door of the must be kept closed while the other is opened. a. airlock b. wall c. stopping
stopping
62
62. Rescue teams should an airlock so that the two stoppings are as close together as possible yet with enough space to allow room for the team and their equipment to fit in between. a. erect/built b. build/erected
build/erect
63
63. If the fresh air base is underground, it should be where it’s assured a fresh air travelway to the surface.a. placed b. situated c. located
located
64
64. The fresh air base should be where it’s assured positive ventilation and fresh air.a. located b. situated c. placed
located
65
65. Elevators should be before use following a disaster. a. checked b. lowered c. tested
tested
66
66. As a team advances, it is important to stay in close with the fresh air base to report team progress and to receive further instructions. a. vicinity b. communication c. contact
contact
67
67. is lighter than air.a. CO b. Hydrogen c. Methane
Methane
68
68. Team captains should inspect roof and ribs before the team members into the area. a. advance b. travel c. move
advance
69
69. The roof and ribs be tested before extinguishing a fire. a. must b. should c. will
should
70
70. Hazardous areas should be marked to warn other teams that may the area after yours. a. enter b. explore c. travel
enter
71
71. Progress reports should include on roof and rib conditions and gas . a. information/constituents b. information/locations c. reports/conditions
reports/conditions
72
72. The time spent underground by a rescue team is usually limited to hours or less. a. four b. two c. three
two
73
73. When looking for survivors, it is important to both look and listen for . a. evidence b. clues c. hints
clues
74
74. For a Class C fire (electrical), if power has been off to the burning equipment, it may be treated as a Class A or B fire. a. cut b. shut c. locked
cut
75
75. When survivors are located, their location, , and condition should be reported immediately to the command center. a. identification b. orientation c. identities
identities
76
76. When survivors are , the location, time, and date should be marked on the team’s map and on the rib where they are found. a. found b. located c. rescued
found
77
77. When survivors are found, they should be to safety and fresh air as quickly as possible. a. taken b. moved c. transported
transported
78
78. The main objective of recovery work is to put the affected area of the mine back in as soon as possible. a. compliance b. operation c. production
operation
79
79. All temporary seals should be well hitched in the floor roof, and ribs to their strength. a. improve b. increase c. develop
improve
80
80. Urethane foam is an effective sealant when around the perimeter of a seal. a. installed b. applied c. used
used
81
81. High volatile coal burns much than low or medium volatile coal. a. faster b. hotter c. sooner
faster
82
82. It may be necessary to double or triple the thickness of the in order to improve the effectiveness of the seal. a. sealant b. blocks c. material
material
83
83. Seals should be built at locations with roof and even roof and ribs. a. decent b. flat c. good
good
84
84. Hazards of direct firefighting are electric shock or electrocution, and asphyxiating gases, oxygen deficiency, explosive gases, heat, smoke and steam.a. toxic b. poisonous c. dangerous
toxic
85
85. When fires are sealed in gassy or dusty mines, a thick coating of rock dust should be applied to the ribs, roof and floor for several hundred feet outby the seals, and if possible, inside the seal, to reduce the chance of a coal
propagating
86
86. The main objectives of exploration work during a mine fire are locating the and assessing conditions in the fire area. a. cause b. survivors c. fire
fire
87
87. A self-contained breathing apparatus is a portable unit that supplies oxygen or air independently of the surrounding atmosphere. a. partially b. completely c. fully
completely
88
88. If a team member must return to the fresh air base because of a problem, it is standard among teams for the entire team to go back with that person. No one should ever travel alone. a. practice b. protocol c. procedure
practice
89
89. Thermal Imaging Cameras should only be used in less than of Methane. a. 1 percent b. 1 % c. 2 percent
1 percent
90
90. Once , survivors should never be left alone. a. found b. located c. rescued
rescued
91
91. After a fire has been sealed the practice has been to wait hours before making the initial visit to the seals. a. 24 b. 48 c. 72
72
92
92. When a fire area is not un- sealed until the oxygen content is low enough to make explosions impossible and the carbon monoxide has disappeared. a. sealed b. appropriate c. possible
appropriate
93
93. Firefighters force inert gases into areas they are trying to remove the Oxygen leg of the fire triangle. a. where b. if c. when
where
94
94. air has a specific gravity of one.a. Clean b. Normal c. Dry
Normal
95
95. Sufficient time should be for a fire area to cool before it is unsealed.a. given b. permitted c. allowed
allowed
96
96. A is used to show the direction and velocity of slow moving air.a. smoke tube b. anemometer c. magnehilic gauge
smoke tube
97
97. The lower explosive limit of hydrogen is .a. 4 percent b. 4.0 percent c. 4 %
4.0 percent
98
98. The IDLH of is 20 ppm.a. Nitrogen Dioxide b. Nitrogen c. Hydrogen
Nitrogen dioxide
99
99. , dry air at sea level is made up of 78 percent nitrogen and 21 percent oxygen.a. Normal b. Clean c. Fresh
Clean
100
100. A team is a made up of individuals working toward a common goal.a. group b. crew c. unit
unit
