DW-Numbers2 Flashcards
0
Q
Tower Ladder:
15 is found in five places in tower ladders
A
Basket 15sqft Front end of TL angled 15° Max slope 15% Hose strap w 15' of 1/2" rope 15' loop on a bowline to substantial part of the basket
1
Q
Tower Ladder
Chassis support
Boom sections
Basket square footage
A
6
4
15sqft
2
Q
Max floor elevation of TL
A
70’
3
Q
Angle that will provide max floor elevation
A
75° Angle to reach 70’ height
4
Q
Ideal distance to objective TL
A
32’
5
Q
Floor elevation if TL is at ideal distance to objective
A
65’ w TL 32’ from objective
6
Q
TL scrub area
A
7750sqft
60’ H, 50’W, 100’ frontage w cab 15°
7
Q
Distance basket can reach below grade
A
10’
8
Q
Distance of center line of turntable where there will be sufficient room to drop basket
A
25’
9
Q
Nominal height of TL
A
75’
10
Q
Grade ip to __are considered to be level
A
4%
11
Q
Angle to drain waterway
A
60°
12
Q
The rung in which the 15’ 1/2” rope w hose strap must go through
A
6th rung
13
Q
Total men in TL basket with pl operation
A
3 men
2 optimal
14
Q
When drilling on pl operation in TL the basket should be at a height of
A
2-3’
15
Q
When operating on a roof questionable stability with tools, stay within ___ radius
A
10 radius
16
Q
Alpha radiation travel
A
1-2”
17
Q
Beta radiation range
A
Up to 10’
18
Q
Gamma radiation range
A
Several hundred feet
19
Q
Rad50 alarms at
A
1mr/hr
20
Q
Hot zone is established at
A
2mr/hr
21
Q
Max reading rad50
A
50mr/hr
22
Q
Average annual dose of radiation people receive from background
A
360 mr
23
Q
Normal background radiation read the New York City
A
0.02 - 0.05 mr
Ludlum w pancake probe 25-100cpm
24
Members receiving absorbed doses should be rotated at this dose level
5 REM
25
Members receiving an absorbed dose for protection of major property should be at this level
10 Rem
26
Members receiving the up your dose for life saving purposes should be rotated at this dose level
25-50 Rem
27
Radio active hazard class number
7
28
Maximum level radiation on the surface of a yellow III package
200mr/hr
| maximum level radiation on the surface 1 meter 10 mr/hr
transportation index should not exceed
29
9 V battery is changed on the rad 50
Every three months JAJO
30
The ultraradiac The text gamma an x-ray what are the high and low rate alarms
Low 2mr/hr
| High 50mr/hr
31
Ultraradiac hi and low dose alarms
Low 5R
| High 12R
32
The blinking b at the top left corner of the ultraradiac indicates
10 hours or less of battery time
33
Ultraradiac contains four AAA batteries which is good for ____hrs of continuous monitoring
150
A minimum of eight batteries should be stored in pelican case
34
Ultraradiac that passes all start up test will have a blinking
9
35
What indicates an ultraradiac has failed start up test
Blinking 0
36
What is the safe operating distance for replying water on energized or D energized equipment
15' live 138V 30° fog or greater
75 138 V solid straight stream less than 30°
25' 345V 30° fog or greater
125' 345 V solid straight stream less than 30°
37
Aqua stream master stream nozzle factory preset pattern
130°
38
Maximum safe levels operating water stream on energized equipment
0.9 mA
39
Safe distance is from expose the overhead busbars 345 V
18'
40
Save distances from expose overhead busbars 15 K to 38K Volts
10'
41
Sulfur hexafluoride gas is ___X heavier than air
5X
42
Safe clearance horizontally from substations exterior fence from an aerial or tower ladder
18'
43
CORE relay in Subway system
Chauffeur within 50 yards from bottom subway entrance stairs
OVM 50 yards from LCC foot of the stairs leading to the platform
Roof 50 yards from all OVM from stairs to platform
Engine officer 100 yards wind of sight from roof on platform
Additional HT members every 100 yards
44
Third rail power
660 V
45
To halt train traffic shine light chest height horizontal motion
4'
46
Power removal box distance bluelight
600'
47
Gates valves with fire department threads located every
200'
48
Track identification signs on columns of the Manhattan Bridge are every
400' at 8' heights
49
Progress reports from light train operations at least one every
15 min
50
Catenary overhead wire voltage
12,00V AC
51
Standby power connections for Amtrak heavy black cable
480V
52
What is the minimum distance with water sprays for 10K and 30 KV for the NFPA standard
4'
****FDNY standard 10 feet minimum safe distance
53
Length of the EED
7'
| Weight 42 lb
54
The angle in which the EED will reach the road bed
70°
55
Trains are composed of ______cars
1-4
56
What are the width of the center walkway and sidewalk way of an air train
Side walkway 2.5 feet
| center walkway 5.5 feet
57
What's the approximate height of handrail of air train walkways
3'
58
Air train third rail power voltage
750V DC
59
Blue white power distance at air train
800'
60
What are the primary and secondary subway repeater channels
14 & 15
61
Members exposed to bleach should immediately for skin or eyes and running water for
15 minutes
62
Rear mount as as a water tower
Street w severe crown, max angle
Max extension ladder
Max psi
70 degrees
80'
90psi
63
What is the upper and lower explosive levels of CO
12.5% to 74%
64
Carbon monoxide is about ____ more attracted to the hemoglobin than oxygen
210
65
Emergency mass Decon
| Distance between two operating pumpers
25' 50-80psi
66
The EPA has established that residential levels or not to exceed
9ppm over an eight hour period
67
LaGuardia airport fire hydrants:
Low-pressure
High pressure
low-pressure 65 PSI high pressure painted black body silvertop
125 PSI painted yellow
68
Kennedy Airport three types of hydrants low,intermediate,hi psi's
Low-pressure 60 PSI black body silvertop
Intermediate pressure 90 psi yellow top black body
High-pressure 160 PSI. Painted yellow
69
A potentially lethal level of carbon monoxide is when meter readings are
100ppm or greater
70
It is easier and faster to use a rope stretch in H types where stairs wrap around the elevator shaft if the fire is on
Third floor or above
71
A carbon monoxide incident is when meter readings or
9ppm or less
72
CO emergency is one where meter readings are
10ppm or more (greater than 9)
| But less than 100
73
Safe atmospheric conditions confined spaces:
Oxygen concentration
Flammable range
Toxicity
Oxygen concentration between 19.5% and 23.5%
Flammability range not over 10% LEL
Toxicity not over 35 ppm of calling monoxide
Not over 10 ppm of hydrogen sulfide
74
OSHA has established a maximum safe working level for carbon monoxide to
35 ppm over an eight hour period
75
Emergency Mass Decon
| Distance between 2- 2 1/2" handlines
25-30' 50-80psi
76
With water flowing and a man climbing aerial to correct ladder pipe, the correct angle of the ladder will be that when the horizontal distance between tip of ladder and turntable is between ____&____.
15'-25'
| 70-80 degree angle
77
The ignition temperature of carbon monoxide
1128°F
78
Discharge time of purple K extinguisher
11 seconds
79
TL basket can be placed _____above the street
1-2'
80
In high-rise class e single unit responses, after the alarm panel resets the officer shall remain for approximately _______to be sure that the reset holds
2-3 minutes
**TL basket can be brought down to 2 to 3 feet above ground
81
Natural gas LEL
5-15%
82
When turning corners with apparatus, operator should not be in excess of __mph
15 mph
83
At 1100°F failure temperature of steel will lose __% of load carrying capacity
40%
84
Positive pressure ventilation fans are placed ______from the attack stair door at a degree __angle.
The Fans can pressurize up to ___floors.
Two fans can pressurize up ___floors
If the fire floor is above the 10th for a second fan must be set up ___ floors below the fire for
```
4-6 feet
80°
10 floors
40 floors
3 floors
```
85
Hydrant selected for in-line pumping must be on a __or larger main
6"
86
Maximum number of 3 1/2 inch supply line hand stretched
3
87
When intake pressure drops below ___PSI have water supply augmented
15 psi
88
The amount of time it takes to equalize both cylinders using fast pak
Approximately 60 seconds
89
During a hurricane or flood condition and apparatus shall not cross water with the depth is in excess of
Should not exceed 18"
90
Depth of water to be crossed should not exceed __for FDNY hi Axle vehicles
50"
91
During brushfire operations reflex time for the police helicopter can be expensive generally
20-30 min
92
A helicopter will not fly in the wind over
40mph
93
Helicopters have a limited operating time generally
2-3 hours
94
A Bambi bucket capacity is
150 gallons
95
Minimum breaking strength of personal harness
6000 pounds
96
Remember freefalling _____ is considered a sufficient impact glued to warrant placing the personal harness out of service
3 feet or more
97
The PSS hook load capacity at tip ?
| at saddle?
Tip 5000 pounds
| Saddle 10,000 pounds
98
PSS rope diameter
7.5 MM (9/64")
99
This H model has an LCD the screen
Model III
100
HPs have a special ___digit number specifically assigned to each radio
7
101
A second emergency alert tone will be transmitted automatically __seconds after the initial tone
10 seconds
102
By pressing the purple light button on the HT the back light will turn on for
5 sec
103
Motorola HT T batteries are rated for approximately
8 hrs
104
The expected battery life of a Motorola HT battery will last approximately _______at 2 watts
________@ 5 watts
452
4-5 hours " 2 w
235
2-3 hours @ 5 w
105
Radios that chirp have approximately _____percent of its full charge battery capacity remaining
5-10%
106
_____ batteries are assigned per HT
2
107
HT batteries need to be used and charged on a regular basis. If this cycle is disrupted for more than ____________, the batteries charging capacity will become greatly diminished
2 weeks
108
When inserting battery there are ____ slots to align with the ___slots on the ht
3,3
109
To recharge an HT battery, this will normally require approximately ___________of charging.
1 hour
110
Exchange batteries received from the depot must be left on the charger for a minimum of __hours before using
14
111
On vehicle battery charger may take up to __hours to charge a fully drain the battery
3 hours
112
Width of flagging column
3/8"
113
The apparatus air outlet can fill two lengths of hose in approximately
20 seconds
114
Units are to maintain a minimum __supply of rolls of MDT print out paper at all times
3
115
Building separated by ____from the fire building should not be identified as exposures unless the volume of fire or complexity of the incident courses in exposure problem
More than 30 feet (31 feet or more)
116
Updated calculations have revealed that wooden bowstring truss roof may only support ___percent of the load they were originally designed to hold
40%
117
The Nolan real court has one wheel that is provided with a wheellock slide bolt which is colored
Red square
Orange and green markings are used to line up the rail court when remounting it to the hand truck
118
The placard number for propane
1075
119
Hydraulic fluid in eyes, flush with clean water for ___ minutes
20
120
The time the Drager SCBA will provide breathable air for
Four hours
121
When needed to be on air for a long period of time, for penetrations less than ____feet from see if the entry point, soc units can deploy supplied air respirators fed by hoses from an airsource court
300ft
122
What is the failure temperature of steel in the fire service according to Dunn
1100°F steel lose 40% of its carrying load capacity
123
When finding a motor vehicle fire attack from the flanks. Keep onlookers from standing in front of or to the rear of vehicle fires for a distance of at least
100 feet
124
When fighting a commercial garbage truck fire nobody should be allowed with in all of ______' the rear of the truck
50'
