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Undeleted > DW-Numbers > Flashcards

DW-Numbers 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
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1
Q

Tower Ladder
Chassis support
Boom sections
Basket square footage

A

6
4
15sqft

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2
Q

Max floor elevation of TL

A

70’

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3
Q

Angle that will provide max floor elevation

A

75° Angle to reach 70’ height

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4
Q

Ideal distance to objective TL

A

32’

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5
Q

Floor elevation if TL is at ideal distance to objective

A

65’ w TL 32’ from objective

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6
Q

TL scrub area

A

7750sqft

60’ H, 50’W, 100’ frontage w cab 15°

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7
Q

Distance basket can reach below grade

A

10’

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8
Q

Distance of center line of turntable where there will be sufficient room to drop basket

A

25’

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9
Q

Nominal height of TL

A

75’

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10
Q

Grade ip to __are considered to be level

A

4%

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11
Q

Angle to drain waterway

A

60°

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12
Q

The rung in which the 15’ 1/2” rope w hose strap must go through

A

6th rung

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13
Q

Total men in TL basket with pl operation

A

3 men

2 optimal

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14
Q

When drilling on pl operation in TL the basket should be at a height of

A

2-3’

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15
Q

When operating on a roof questionable stability with tools, stay within ___ radius

A

10 radius

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16
Q

Alpha radiation travel

A

1-2”

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17
Q

Beta radiation range

A

Up to 10’

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18
Q

Gamma radiation range

A

Several hundred feet

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19
Q

Rad50 alarms at

A

1mr/hr

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20
Q

Hot zone is established at

A

2mr/hr

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21
Q

Max reading rad50

A

50mr/hr

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22
Q

Average annual dose of radiation people receive from background

A

360 mr

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23
Q

Normal background radiation read the New York City

A

0.02 - 0.05 mr

Ludlum w pancake probe 25-100cpm

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24
Q

Members receiving your doses should be rotated at this dose level

A

5 REM

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25
Q

Members receiving an absorbed dose for protection of major property should be at this level

A

10 Rem

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26
Q

Members receiving the up your dose for life saving purposes should be rotated at this dose level

A

25-50 Rem

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27
Q

Radio active hazard class number

A

7

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28
Q

Maximum level radiation on the surface of a yellow III package

A

200mr/hr

maximum level radiation on the surface 1 meter 10 mr/hr
transportation index should not exceed

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29
Q

9 V battery is changed on the rad 50

A

Every three months JAJO

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30
Q

The ultraradiac The text gamma an x-ray what are the high and low rate alarms

A

Low 2mr/hr

High 50mr/hr

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31
Q

Ultraradiac hi and low dose alarms

A

Low 5R

High 12R

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32
Q

The blinking be at the top left corner of the ultraradiac indicates

A

10 hours or less of battery time

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33
Q

Ultraradiac contains four AAA batteries which is good for ____hrs of continuous monitoring

A

150

A minimum of eight batteries should be stored in pelican case

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34
Q

Ultraradiac that passes all start up test will have a blinking

A

9

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35
Q

What indicates an ultraradiac has failed start up test

A

Blinking 0

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36
Q

What is the safe operating distance for replying water on energized or D energized equipment

A

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°

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37
Q

Aqua scream master stream nozzle factory preset pattern

A

130°

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38
Q

Maximum safe levels operating water stream on energized equipment

A

0.9 mA

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39
Q

Safe distance is from expose the overhead busbars 345 V

A

18’

40
Q

Save distances from expose overhead busbars 15 K to 38K Volts

A

10’

41
Q

Sulfur hexafluoride gas is ___X heavier than air

A

5X

42
Q

Safe clearance horizontally from substations exterior fence from an aerial or tower ladder

A

18’

43
Q

CORE relay in Subway system

A

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
Q

Third rail power

A

660 V

45
Q

To halt train traffic shine light chest height horizontal motion

A

4’

46
Q

Power removal box distance bluelight

A

600’

47
Q

Gate valves with fire department threads located every

A

200’

48
Q

Track identification signs on columns of the Manhattan Bridge are every

A

400’ at 8’ heights

49
Q

Progress reports from light train operations at least one every

A

15 min

50
Q

Catenary overhead wire voltage

A

12,00V AC

51
Q

Standby power connections for Amtrak heavy black cable

A

480V

52
Q

What is the minimum distance with water sprays for 10K and 30 KV for the NFPA standard

A

4’

**FDNY standard 10 feet minimum safe distance

53
Q

Length of the EED

A

7’

Weight 42 lb

54
Q

The angle in which the EED will reach the road bed

A

70°

55
Q

Trains are composed of ______cars

A

1-4

56
Q

What are the witch of the center walkway and sidewalk way of an air train

A

Side walkway 2.5 feet

center walkway 5.5 feet

57
Q

What’s the approximate height of handrail of air train walkways

A

3’

58
Q

Air train third rail power voltage

A

750V DC

59
Q

Blue white power distance at air train

A

800’

60
Q

What are the primary and secondary subway repeater channels

A

14 & 15

61
Q

Members exposed to bleach should immediately for skin or eyes and running water for

A

15 minutes

62
Q

Rear mount as as a water tower
Street w severe crown, max angle
Max extension ladder
Max psi

A

70 degrees
80’
90psi

63
Q

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 ____&____.

A

15’-25’

70-80 degree angle

64
Q

Call the monoxide is about ____ more attracted to the hemoglobin then oxygen

A

210

65
Q

OSHA has established a maximum safe working level for carbon monoxide to

A

35 ppm over an eight hour period

66
Q

Safe atmospheric conditions confined spaces:
Oxygen concentration
Flammable range
Toxicity

A

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

67
Q

CO emergency is one where meter readings are

A

10ppm or more (greater than 9)

But less than 100

68
Q

Kennedy Airport three types of hydrants low,intermediate,hi psi’s

A

Low-pressure 60 PSI black body silvertop
Intermediate pressure 90 psi yellow top black body
High-pressure 160 PSI. Painted yellow

69
Q

A potentially lethal level of carbon monoxide is when meter readings are

A

100ppm or greater

70
Q

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

A

Third floor or above

71
Q

A carbon monoxide incident is when meter readings or

A

9ppm or less

72
Q

LaGuardia airport fire hydrants:
Low-pressure
High pressure

A

low-pressure 65 PSI high pressure painted black body silvertop
125 PSI painted yellow

73
Q

The EPA has established that residential levels or not to exceed

A

9ppm over an eight hour period

74
Q

Emergency mass Decon

Distance between two operating pumpers

A

25’ 50-80psi

75
Q

Emergency Mass Decon

Distance between 2- 2 1/2” handlines

A

25-30’ 50-80psi

76
Q

What is the upper and lower explosive levels of CO

A

12.5% to 74%

77
Q

The ignition temperature of carbon monoxide

A

1128°F

78
Q

Discharge time of purple K extinguisher

A

11 seconds

79
Q

TL basket can be placed _____above the street

A

1-2’

80
Q

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

A

2-3 minutes

**TL basket can be brought down to 2 to 3 feet above ground

81
Q

Natural gas LEL

A

5-15%

82
Q

When turning corners with apparatus, operator should not be in excess of __mph

A

15 mph

83
Q

At 1100°F failure temperature of steel will lose __% of load carrying capacity

A

40%

84
Q

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

A 
4-6 feet
 80°
10 floors
40 floors
3 floors
85
Q

Hydrant selected for in-line pumping must be on a __or larger main

A

6”

86
Q

Maximum number of 3 1/2 inch supply line hand stretched

A

3

87
Q

When intake pressure drops below ___PSI have water supply augmented

A

15 psi

88
Q

The amount of time it takes to equalize both cylinders using fast pak

A

Approximately 60 seconds

89
Q

During a hurricane or flood condition and apparatus shall not cross water with the depth is in excess of

A

Should not exceed 18”

90
Q

Depth of water to be crossed should not exceed __for FDNY hi Axle vehicles

A

50”

91
Q

During brushfire operations reflex time for the police helicopter can be expensive generally

A

20-30 min

92
Q

A helicopter will not fly in the wind over

A

40mph

93
Q

Helicopters have a limited operating time generally

A

2-3 hours

94
Q

A Bambi bucket capacity is

A

150 gallons

95
Q

Minimum breaking strength of personal harness

A

6000 pounds

96
Q

Remember freefalling _____ is considered a sufficient impact glued to warrant placing the personal harness out of service

A

3 feet or more

97
Q

The PS S hook load capacity at tip ?

at saddle?

A

Tip 5000 pounds

Saddle 10,000 pounds

98
Q

PSS rope diameter

A

7.5 MM (9/64”)

Undeleted (130 decks)

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