DW-Numbers Flashcards
Tower Ladder:
15 is found in five places in tower ladders
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
Tower Ladder
Chassis support
Boom sections
Basket square footage
6
4
15sqft
Max floor elevation of TL
70’
Angle that will provide max floor elevation
75° Angle to reach 70’ height
Ideal distance to objective TL
32’
Floor elevation if TL is at ideal distance to objective
65’ w TL 32’ from objective
TL scrub area
7750sqft
60’ H, 50’W, 100’ frontage w cab 15°
Distance basket can reach below grade
10’
Distance of center line of turntable where there will be sufficient room to drop basket
25’
Nominal height of TL
75’
Grade ip to __are considered to be level
4%
Angle to drain waterway
60°
The rung in which the 15’ 1/2” rope w hose strap must go through
6th rung
Total men in TL basket with pl operation
3 men
2 optimal
When drilling on pl operation in TL the basket should be at a height of
2-3’
When operating on a roof questionable stability with tools, stay within ___ radius
10 radius
Alpha radiation travel
1-2”
Beta radiation range
Up to 10’
Gamma radiation range
Several hundred feet
Rad50 alarms at
1mr/hr
Hot zone is established at
2mr/hr
Max reading rad50
50mr/hr
Average annual dose of radiation people receive from background
360 mr
Normal background radiation read the New York City
0.02 - 0.05 mr
Ludlum w pancake probe 25-100cpm
Members receiving your doses should be rotated at this dose level
5 REM
Members receiving an absorbed dose for protection of major property should be at this level
10 Rem
Members receiving the up your dose for life saving purposes should be rotated at this dose level
25-50 Rem
Radio active hazard class number
7
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
9 V battery is changed on the rad 50
Every three months JAJO
The ultraradiac The text gamma an x-ray what are the high and low rate alarms
Low 2mr/hr
High 50mr/hr
Ultraradiac hi and low dose alarms
Low 5R
High 12R
The blinking be at the top left corner of the ultraradiac indicates
10 hours or less of battery time
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
Ultraradiac that passes all start up test will have a blinking
9
What indicates an ultraradiac has failed start up test
Blinking 0
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°
Aqua scream master stream nozzle factory preset pattern
130°
Maximum safe levels operating water stream on energized equipment
0.9 mA
Safe distance is from expose the overhead busbars 345 V
18’
Save distances from expose overhead busbars 15 K to 38K Volts
10’
Sulfur hexafluoride gas is ___X heavier than air
5X
Safe clearance horizontally from substations exterior fence from an aerial or tower ladder
18’
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
Third rail power
660 V
To halt train traffic shine light chest height horizontal motion
4’
Power removal box distance bluelight
600’
Gate valves with fire department threads located every
200’
Track identification signs on columns of the Manhattan Bridge are every
400’ at 8’ heights
Progress reports from light train operations at least one every
15 min
Catenary overhead wire voltage
12,00V AC
Standby power connections for Amtrak heavy black cable
480V
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
Length of the EED
7’
Weight 42 lb
The angle in which the EED will reach the road bed
70°
Trains are composed of ______cars
1-4
What are the witch of the center walkway and sidewalk way of an air train
Side walkway 2.5 feet
center walkway 5.5 feet
What’s the approximate height of handrail of air train walkways
3’
Air train third rail power voltage
750V DC
Blue white power distance at air train
800’
What are the primary and secondary subway repeater channels
14 & 15
Members exposed to bleach should immediately for skin or eyes and running water for
15 minutes
Rear mount as as a water tower
Street w severe crown, max angle
Max extension ladder
Max psi
70 degrees
80’
90psi
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
Call the monoxide is about ____ more attracted to the hemoglobin then oxygen
210
OSHA has established a maximum safe working level for carbon monoxide to
35 ppm over an eight hour period
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
CO emergency is one where meter readings are
10ppm or more (greater than 9)
But less than 100
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
A potentially lethal level of carbon monoxide is when meter readings are
100ppm or greater
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
A carbon monoxide incident is when meter readings or
9ppm or less
LaGuardia airport fire hydrants:
Low-pressure
High pressure
low-pressure 65 PSI high pressure painted black body silvertop
125 PSI painted yellow
The EPA has established that residential levels or not to exceed
9ppm over an eight hour period
Emergency mass Decon
Distance between two operating pumpers
25’ 50-80psi
Emergency Mass Decon
Distance between 2- 2 1/2” handlines
25-30’ 50-80psi
What is the upper and lower explosive levels of CO
12.5% to 74%
The ignition temperature of carbon monoxide
1128°F
Discharge time of purple K extinguisher
11 seconds
TL basket can be placed _____above the street
1-2’
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
Natural gas LEL
5-15%
When turning corners with apparatus, operator should not be in excess of __mph
15 mph
At 1100°F failure temperature of steel will lose __% of load carrying capacity
40%
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
Hydrant selected for in-line pumping must be on a __or larger main
6”
Maximum number of 3 1/2 inch supply line hand stretched
3
When intake pressure drops below ___PSI have water supply augmented
15 psi
The amount of time it takes to equalize both cylinders using fast pak
Approximately 60 seconds
During a hurricane or flood condition and apparatus shall not cross water with the depth is in excess of
Should not exceed 18”
Depth of water to be crossed should not exceed __for FDNY hi Axle vehicles
50”
During brushfire operations reflex time for the police helicopter can be expensive generally
20-30 min
A helicopter will not fly in the wind over
40mph
Helicopters have a limited operating time generally
2-3 hours
A Bambi bucket capacity is
150 gallons
Minimum breaking strength of personal harness
6000 pounds
Remember freefalling _____ is considered a sufficient impact glued to warrant placing the personal harness out of service
3 feet or more
The PS S hook load capacity at tip ?
at saddle?
Tip 5000 pounds
Saddle 10,000 pounds
PSS rope diameter
7.5 MM (9/64”)
