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Aerials Flashcards

1
Q

What are the two groups of aerials?

A

Aerial Ladders

Elevating Platfroms

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2
Q

What are 3 general NFPA requirements of aerial ladders?

A

Power operated
Working height of 50-135 feet
Rated vertical height of at least 50 feet

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3
Q

What are 4 uses of aerials?

A

Rescue
Ventilation
Elevated master stream
Access to upper levels

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4
Q

What are the hydraulic system components?

A

Hydraulic pumps
Cylinders
Hydraulic motors
Electrical or mechanical back-up systems are required

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5
Q

NFPA 1901 says that aerial ladders consist of…..

A

2 or more ladder sections

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6
Q

NFPA 1901 says that aerial ladders must be constructed of….

A

Metal- Heat treated aluminum or steel

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7
Q

What kind of construction are aerial ladder support beams?

A

Triangular truss construction

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8
Q

Aerial ladder support beam construction allows for….

A

Tension and compression stresses to be distributed over the length of the ladder

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9
Q

Components of the aerial ladder may be ___ or ___ together

A

Welded or riveted

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10
Q

Aerial ladders rungs are ___ on center with ___ ___ ___

A

14” on center with skid resistant surface

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11
Q

Aerial ladder rungs are ___ outside diameter

A

1 1/4”

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12
Q

Aerial ladders rungs are designed with a minimum of ___ pounds per rung

A

500 pounds

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13
Q

Aerial ladder rungs are at ___ inches minimum at it’s narrowest climbing point

A

18”

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14
Q

What is the minimum rated capacity of aerial ladders?

A

250 pounds at the tip of the fly section extended to it’s maximum horizontal reach.

Capable of operating in any position while carrying the minimum tip load

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15
Q

What is an aerial ladder minimum rated capacity while flowing water?

A

250 pounds at the tip of the fly while fully extended with the aerial at a 45 degree angle and discharging water through the full range of monitor or nozzle movements

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16
Q

What is the TFD rated capacity for aerial platforms? Aerial ladders?

A

Platforms-1000 pounds in any position while flowing 1000 gpm
Aerials- 500 pounds in any position while flowing 1000 gpm

Egress is included in the weight rating

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17
Q

What is the time rating for aerials at 100’ or less and for aerials at over 100’?

A

Equal or less than 110’- With stabs set… Raised from bedded to max elevation and extension rotated 90 degrees in not over 120 seconds

Over 100’- With stabs set… Raised from bedded to max elevation and extension rotated 90 degrees in not over 180 seconds

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18
Q

What are the 3 types of elevating platforms?

A

Ladder platform
Telescoping platform
Articulating platform

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19
Q

What is a ladder platform?

A

Consists of two or more booms/sections equipped with a passenger carrying device
Range from 85-100 feet
Height measured from top of the hand rail to the ground
Single chasis 3 axle design
Rear or mid-ship mount

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20
Q

NFPA 1901 requires that aerial platform be constructed of …

A

Metal- aluminum alloy or steel

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21
Q

What are the safety aspects of platforms?

A 
Leveling systems required for the bucket
Minimum of 14 sq ft of floor area
Completely enclosed with no opening greater than 24"
Two gates below the top railing
Minimum 4" kick plate at floor level
1/4" drain opening in the kick plate
Heat-protective shield
Water curtain with 75 gpm cooling spray
400 cu ft air system for two personnel
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22
Q

What is the hydraulic system capacity of aerials?

A

850-3000 psi

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23
Q

Constructions features of aerials include ___ valves, ____ fuses, ____ ____ valves

A

Safety valves, velocity fuses, safety check valves

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24
Q

What are aerial cables used for?

A

To extend the fly section

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25
What are aerial cables made out of?
Aircraft type plow steel
26
What is the safety rating for aerial cables?
4:1
27
What is the damage called when the cable untwists?
Bird-Caging
28
When it comes to the control pedestal, the lower control operator must not be in contact with...
The ground
29
When it comes to the control pedestal, aerial platforms require a control station in the...
In the actual platform
30
___ controls override the ___ controls.
Turntable controls override platform controls.
31
The aerial ladder has ___ fuses
Velocity fuses
32
Velocity fuses....
Maintain desired elevated positions even if the hydraulic system fails Maintains the ladder in the bed
33
If a velocity fuse malfunctions...
The aerial will be crooked or operate slowly
34
Aerial air systems...
``` Capable of supplying air to 2 personnel Minimum of 400 cu ft of air Relief valve Pressure in piping is limited to 100 psi Cylinders are 20-year K bottles that are tested annually ```
35
The selector valve is located ___ or ___
Mid-ship or rear
36
What is the most critical aspect of preparing an aerial?
Stabilizing the apparatus
37
Do not place stabilizers in running water because of...
Possible erosion
38
Using foot plates/stabilizer pads increases the weight distribution by a factor of ___
Factor of 4
39
___ type stabilizers have a series of holes for safety pins
Box type
40
What kinds of things are you looking out for on the ground when placing stabilizers?
Soft ground Septic tanks Man hole covers Anything that might give way
41
Stabilizing on curbs...
Avoid if possible Treat the same as on a lateral incline Re-position rather than deploy in an unsafe manner
42
Raising an aerial device is a series of motions including...
Elevating Rotating Extending Lowering
43
Control levers should automatically...
Return to the neutral position
44
Most apparatus are capable of carrying a full load up to a ___% grade
6%
45
What are the 2 keys to operating on a grade?
Optimum positioning | Proper stabilization and knowing load restrictions
46
Sustained winds on the aerial can cause ____
Deformation
47
Most aerial manufacturers allow operations in winds up to...
35-40 mph
48
Side to side 3.5-5.5 degrees reduces load capacity by ___%
50%
49
Front to back 5.5-6.5 degrees reduces load capacity by ___ %
50%
50
Weight limits in the operator's manual are established for winds up to ____
50mph
51
``` Victims should be removed in the following order... 1 2 3 4 ```
1- Most severely threatened 2- Largest number 3- Remainder of people in fire area 4- People in exposed areas
52
If possible, when raising the aerial to the victim, raise ____ to the objective
Perpendicular
53
When raising the aerial to the victim, always aim ___, then ___ to the victim.
Aim above, then lower to the victim
54
Always place aerial in a ____ position
Cantilever
55
Ensure there is enough space between the aerial and the objective for ____
Deflection
56
What are the worst kind of loads on an aerial?
Torsional
57
What type of grease to lube bottom and sides of glides on the aerial flies?
Food grade grease
58
What time of grease for zerk fittings?
Extreme Pressure 2 (EP-2)
59
What to use to lubricate on all cables?
Spray silicone
60
How long can you use the EPU and how long is the cooldown?
30 minutes and 30 minutes
61
How do you use the EPU?
Engage the control lever first, then activate the EPU
62
The EPU is only designed for ___ the aerial
Bedding
63
Most Pierce waterways on TFD are ___
Pinnable
64
Waterways are only supported on the...
.... end of the fly or at the upper midsection
65
What kind of impact of the waterway must be checked by maintenance?
ANY impact of the waterway
66
If you impact the waterway, you need to realize that the damage can be...
In a separate area from the impact
67
When retracting the aerial, what must you ensure is open?
The waterway drain
68
If the waterway is not properly secured, it can...
Launch off of the end of the aerial
69
Non-destructive aerial tests are required to be performed every ___ ___
5 Years
70
How often does TFD perform non-destructive aerial tests?
Yearly
71
What is the duration of the Pierce warranty on aerials?
20 years

Engineer Cert (9 decks)

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