Ch. 16 Intro to Aerial Apparatus

Question 1

Ch. 16 intro to aerial apparatus pg. 583
When the visual inspection is complete, perform an operational inspection of the aerial device. The operational inspection serves two purposes:
1.
2.

Answer 1

1. to ensure that the aerial device is in the proper working condition.
2. is that the inspection serves as a review of the aerial device operations.

He or she may go days, weeks or months without operating the aerial device on a fire or rescue emergency.

Question 2

Ch. 16 pg. 542
There are three categories group the devices based on how they are used and their tactical advantages and disadvantages. IFSTA further classifies aerial fire devices as follows: (3)

Answer 2

• Aerial ladder apparatus
• Elevating platform apparatus
• Water towers.

Question 3

ch. 16 pg. 543
Trusses consist of an assembly of bars or rods to form a rigid framework. Engineers design has proven that trusses lend more strength if their assembled members form triangles. A properly designed truss permits _____ and ______ stresses to be distributed over the length of the ladder.

Answer 3

• tension

- compression

Question 4

<p>Ch. 16. 547.

| A hydraulic system has four main components: what are they.</p>

Answer 4

<p>-actuators,
hydraulic fluid
hydraulic pump,
hydraulic reservoir.</p>

Question 5

<p>Ch. 16 pg. 560
The term quint is derived from the descriptive phrase quintuple fire apparatus, this apparatus has five major features or functions. (5)</p>

Answer 5

• fire pump
• water tank
• supply and attack hoses
• ground ladders
• aerial devices or elevated platforms

Question 6

<p>p.544 Aerial Ladders
\+Aerial ladders designed and built with "\_\_\_\_" as a standard feature provide greater strength than those with older designs.
</p>

Answer 6

K bracing

Question 7

<p>p.546 Basics of Aerial Device Hydraulic Systems
\+During daily inspection, the \_\_ valve should be preset to the stabilizer system position and must not be inadvertently changed while the aerial device is raised.</p>

Answer 7

<p>Selector</p>

Question 8

<p>p.549 Types of valves used in Aerial
\+Check Valve
\+Relief Valve
\+Counterbalance Valve
\+Selector Valve</p>

Answer 8

<p>+Prevents fluid from flowing backward
\+Limit pressure buildup
\+Prevent unintentional/undesirable motion of the device
\+3 way valve used to direct fluid to stabilizers or aerial</p>

Question 9

<p>p.550 Auxiliary Hydraulic Pumps
\+Use in the event of a failure of the main hydraulic pump.
Auxiliary pumps should be operated at itervaals of about \_\_\_\_\_\_\_\_.
</p>

Answer 9

+1 minute

Question 10

p.556-557 Elevating Platform Requirements
+Minimum floor area
+No opening under rail greater than?
+Kickplate height?
+2 operator control stations(locations?)
+Water fog curtain nozzle minimum GPM?
+Minimum load capacity (with no water/with water in piping)
+Capable of discharging__gpm at __psi nozzle pressure
+110 ft or shorter raised,extended and rotated 90 degrees in __ seconds.

Answer 10

14 sq st
24 inches
4 inches
75 gpm
750 with no water/500 with water
1,000 gpm at 100 psi
150 seconds

Question 11

p.562 Cable Systems
+Extension and retraction cables are usually corrosion resistant aircraft quality made with a very high strength steel called___ and made especially for cable application,

Answer 11

Plow steel

Question 12

p.564 Control Pedestals
+The operator’s cotrol pedestal is designned for operators of all heights and is positioned on the turntable side of the aerial apparatus. The control typically has three levers. These levers would be what in a Right to left order.

Answer 12

Elevate
Rotate
Extend

Question 13

p.579 Ventilation Equipment
+ Positive pressure ventilation fans are used to increase the air pressure in a structure andn thus force out the by product of combustion. The may be powered by what three methods?

Answer 13

Electric motors
Gasoline engines
Water driven motors

Question 14

p.579 Loss control
+Loss control starts from the minute companies leave the station and continues throughout entire incident.
+Loss control activities include:(3)

Answer 14

1. Safe driving techniques
2. Water application techniques
3. Salvage and Overhaul

Question 15

ch. 16 pg. 558
Aerial Ladder Platforms:
The most common aerial ladder platform apparatus inn service today is the straight chassis, three-axle vehicle with a rear mounted aerial device. The aerial ladder platforms commonly range in size from?

Answer 15

ladder platforms = 85-110 feet

Question 16

Ch. 16. 550.
When the hydraulic pump fails. The auxiliary pump can be used to operate the Aerial device. If operating with intervals of 1 minute to keep from overheating what operations can be performed on an auxiliary pump?

Answer 16

Only bedding the ladder.

Question 17

ch 16 pg 550 
The cyclinders that are used to elevate the aerial device are know as: 
A. Lift cylinders
B. Main cylinder
C. Primary cylinder
D. Extension Cylinders

Answer 17

A. Lift cylinders

Note. they also maybe refered to as hoisting cyclinders and elevating cylinders.

Question 18

Ch. 16 pg. 551

Normal hydraulic pressure is from _____ to ______ psi.

Answer 18

850
3000

key word is normal pressure:

pg. 547 says depending on manufacturer may be under 3500 psi.

Question 19

CH. 16 pg. 548.
The hydraulic resevoir supplies the hydraulic fuild that is moved in and out of the system. The resevoir also:
A. builds hydraulic pressure in the system.
B. Cleans hydraulic fluid.
C. allows air, heat and foreign matter to be eliminnated from the system.
D. Cools the hydraulic fluid.

Answer 19

C. allows air, heat and foreign matter to be eliminated.

Question 20

ch. 16 pg. 558

The working height of elevating platforms is measured from:

Answer 20

ground to the top surface of the highest platform handrail. at maximum extension and elevation.