Aerial App Ch2-7,9

Question 0

NFPA 1901 defines an aerial device into three basic categories

Answer 0

Aerial ladders, elevating platforms and water towers.

Question 1

Fire apparatus collisions can be grouped into five basic causes

Answer 1

Improper backing, reckless driving, excessive speed, lack of skill/experience, poor vehicle design (central states).

Question 2

IFSTA further breaks down aerial devices into three cars horses and five types.

Answer 2

Aerial ladders, elevating platforms: telescoping aerials, articulating aerials, aerial ladder platforms; water towers.

Question 3

How is working height measured?

Answer 3

From the ground to the highest ladder ring with the ladder at maximum elevation and extension.

Question 4

Minimum floor area of a platform

Answer 4

14square ft.

Question 5

Elevating platforms must have a min load capacity of?

Answer 5

750lbs

Question 6

Platforms 110ft or less should be raised from bed to its max elevation/extension and rotated 90 degrees in what time?

Answer 6

150seconds or less

Question 7

Telescoping aerial platforms have two or more sections and are made of either

Answer 7

Box beam or tubular truss beam

Question 8

Define truss as related to aerial ladder.

Answer 8

An assembly of bars or rods to form a rigid framework.

Question 9

Hydraulic fluid is used because it is _________

And it allows force to be transmitted over a relatively large distance with little kids of power.

Answer 9

Practically incompressible

Question 10

Normal hydraulic pressure is

Answer 10

850 to 3000 psi

Question 11

The extension and retraction cables are usually corrosion resistant ___________ cables made with very high strength steel, called _________ and they are resistant to abrasion.

Answer 11

Aircraft quality, plow steel.

Question 12

Detachable ladder pipes are typically limited to flows of less than

Answer 12

750 gpm

Question 13

Because elevating platforms typically have greater load capacities than aerial ladders, the piping on these systems may be larger and flows of up to ?

Answer 13

2000 gpm

Question 14

What is NFPA 1989?

Answer 14

Standard on breathing air quality for emergency services respiratory protection

Question 15

Aerial apparatus inverters provide up to ______ of electric power

Answer 15

5000 watts or 5kW

Question 16

Vehicle mounted power plants usually have ___ and ___ volt capabilities with up to _________ watts of power available

Answer 16

110 and 220, 12,000

Question 17

________ lights usually range from 300 to 1000 watts.

Answer 17

Portable

Question 18

Diesel exhaust can emit up to ____ harmful chemicals and compounds therefore case and Diesel engines should not be run in _______ areas for any period of time.

Answer 18

100, unvented

Question 19

The max pressure imprinted on the tire _______ the recommended operating tire pressure. Check ______ for operating tire pressure.

Answer 19

Is not! , GVWR placard or tire mfg recommendation.

Question 20

In general steering wheel play should be no more than _____ in either direction.

Answer 20

10 degrees

Question 21

Personnel should wear appropriate hearing protection if any personnel will be exposed to noise levels in excess of ______

Answer 21

90 decibels

Question 22

The ______ is the sum of the driver/operators reaction distance and vehicles braking distance.

Answer 22

Total stopping distance.

Question 23

Reaction distance can be affected by what?

Answer 23

Drivers age, aptitude, emotions, fatigue, ingested intoxicating substances.

Question 24

Momentum is?

Answer 24

The velocity of the vehicle multiplied by its mass.

p=v*m

Question 25

It takes _______ more distance for a vehicle to come to a complete stop on snow and ice than it does on dry concrete.

Answer 25

3 to 15 times

Question 26

Four main tactical uses for any aerial device:

Answer 26

Rescue, access to upper levels, ventilation, fire suppression.

Question 27

Jackknifing
Greatest stability occurs when this angle is approximately ______ from inline and the aerial device is extended________ from this angle.

Answer 27

60 deg, away

Question 28

When an apparatus must operate off an incline, spotting the turntable ________ from the point of operation will reduce stress.

Answer 28

Downhill

Question 29

Building collapse zone is equal to _______ building height

Answer 29

1 1/2 times

Question 30

The two ways s truck can be uneven are laterlh and longitudinally. Of the two, the easiest to correct is?

Answer 30

Lateral unevenness.