16. Introduction to Ariel fire apparatus Flashcards Preview

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Flashcards in 16. Introduction to Ariel fire apparatus Deck (19)
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1

The two most common materials for construction of Ariel ladders are

Heat treated aluminum alloy and steel

2

Ariel ladders designed and built with __ bracing as a standard feature provide greater strength then those with older designs.

K

3

Hoist cylinders are sometimes referred to as

Elevating or lift cylinders

4

The end of the piston rod outside the cylinder is fitted with a __ that is anchored to the aerial device or to the turntable.

Trunnion

5

Is the most common type of Ariel fire apparatus located in North America

Aerial ladder apparatus

6

The minimum required floor area of a platform is

14 ft.²

7

Each platform must have a rail completely enclosing the floor area with no openings under the railing greater than

24 inch

8

A kickplate is required at floor level and should be _ inches high

4 inches

9

NFPA 1901 requires the water fog curtain nozzle to operate at least

75 gpm

10

$$$

All elevating platform and must have a minimum load capacity of __lbs

750 lbs fully extended

500 with charged waterway

11

The water delivery system must be capable of discharging at least 1000 gallons per minute at __ PSI nozzle pressure when the aerial device is in any position.

100

12

Notes

Huck bolted- only removed by drilling

First elevate then rotate then extend

Common recommended length of power cords should not exceed 200 feet per reel

The most common aerial ladder platform apparatus in service today is the straight chassis three axel vehicle with a rear mounting aerial device.

Check and fill hydraulic fluid only when the stabilizers and aerial devices are all in there stowed positions

Arial Apparatus tests are grouped into two basic categories pre-service test and service test

The best guarantee that the apparatus will perform within its design limitations is an organized system of apparatus testing and regular maintenance.

13

The extension and retraction cables are usually corrosion resistant aircraft quality cables made with a high strength steel called ___

Plow steel

14

There are two types of pre-pipe waterway systems

Bed ladder systems and telescoping waterway systems

15

Most the ladders with detachable latter pipe appliances restrict the sideways movement of the nozzle to about __ degrees either side of center.

15°

16

Are the most common power source use for emergency services and can be portable or fix to the apparatus

Generator

17

$$$

The most commonly used tools are hydraulic power extraction tools.
Hose distance __ feet or greater from the hydraulic pump may have a negative affect on to operation.

100 ft

18

Since the tiller axle is a steering axle, steering wheel free play must not exceed __ inch on a 20 inch wheel or ___° on any other size steering well.

2 inch
10°

19

When testing the emergency power unit, the main hydraulic system should be disengaged and a control valve must be open before turning on the pump to prevent ___

Deadheading