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Engineer Cert > Aerials > Flashcards

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
Q

What are aerial cables made out of?

A

Aircraft type plow steel

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26
Q

What is the safety rating for aerial cables?

A

4:1

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27
Q

What is the damage called when the cable untwists?

A

Bird-Caging

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28
Q

When it comes to the control pedestal, the lower control operator must not be in contact with…

A

The ground

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29
Q

When it comes to the control pedestal, aerial platforms require a control station in the…

A

In the actual platform

30
Q

___ controls override the ___ controls.

A

Turntable controls override platform controls.

31
Q

The aerial ladder has ___ fuses

A

Velocity fuses

32
Q

Velocity fuses….

A

Maintain desired elevated positions even if the hydraulic system fails
Maintains the ladder in the bed

33
Q

If a velocity fuse malfunctions…

A

The aerial will be crooked or operate slowly

34
Q

Aerial air systems…

A 
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
Q

The selector valve is located ___ or ___

A

Mid-ship or rear

36
Q

What is the most critical aspect of preparing an aerial?

A

Stabilizing the apparatus

37
Q

Do not place stabilizers in running water because of…

A

Possible erosion

38
Q

Using foot plates/stabilizer pads increases the weight distribution by a factor of ___

A

Factor of 4

39
Q

___ type stabilizers have a series of holes for safety pins

A

Box type

40
Q

What kinds of things are you looking out for on the ground when placing stabilizers?

A

Soft ground
Septic tanks
Man hole covers
Anything that might give way

41
Q

Stabilizing on curbs…

A

Avoid if possible
Treat the same as on a lateral incline
Re-position rather than deploy in an unsafe manner

42
Q

Raising an aerial device is a series of motions including…

A

Elevating
Rotating
Extending
Lowering

43
Q

Control levers should automatically…

A

Return to the neutral position

44
Q

Most apparatus are capable of carrying a full load up to a ___% grade

A

6%

45
Q

What are the 2 keys to operating on a grade?

A

Optimum positioning

Proper stabilization and knowing load restrictions

46
Q

Sustained winds on the aerial can cause ____

A

Deformation

47
Q

Most aerial manufacturers allow operations in winds up to…

A

35-40 mph

48
Q

Side to side 3.5-5.5 degrees reduces load capacity by ___%

A

50%

49
Q

Front to back 5.5-6.5 degrees reduces load capacity by ___ %

A

50%

50
Q

Weight limits in the operator’s manual are established for winds up to ____

A

50mph

51
Q 
Victims should be removed in the following order...
1
2
3
4
A

1- Most severely threatened
2- Largest number
3- Remainder of people in fire area
4- People in exposed areas

52
Q

If possible, when raising the aerial to the victim, raise ____ to the objective

A

Perpendicular

53
Q

When raising the aerial to the victim, always aim ___, then ___ to the victim.

A

Aim above, then lower to the victim

54
Q

Always place aerial in a ____ position

A

Cantilever

55
Q

Ensure there is enough space between the aerial and the objective for ____

A

Deflection

56
Q

What are the worst kind of loads on an aerial?

A

Torsional

57
Q

What type of grease to lube bottom and sides of glides on the aerial flies?

A

Food grade grease

58
Q

What time of grease for zerk fittings?

A

Extreme Pressure 2 (EP-2)

59
Q

What to use to lubricate on all cables?

A

Spray silicone

60
Q

How long can you use the EPU and how long is the cooldown?

A

30 minutes and 30 minutes

61
Q

How do you use the EPU?

A

Engage the control lever first, then activate the EPU

62
Q

The EPU is only designed for ___ the aerial

A

Bedding

63
Q

Most Pierce waterways on TFD are ___

A

Pinnable

64
Q

Waterways are only supported on the…

A

…. end of the fly or at the upper midsection

65
Q

What kind of impact of the waterway must be checked by maintenance?

A

ANY impact of the waterway

66
Q

If you impact the waterway, you need to realize that the damage can be…

A

In a separate area from the impact

67
Q

When retracting the aerial, what must you ensure is open?

A

The waterway drain

68
Q

If the waterway is not properly secured, it can…

A

Launch off of the end of the aerial

69
Q

Non-destructive aerial tests are required to be performed every ___ ___

A

5 Years

70
Q

How often does TFD perform non-destructive aerial tests?

A

Yearly

71
Q

What is the duration of the Pierce warranty on aerials?

A

20 years

Engineer Cert (9 decks)

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