Aerial Ladder

Question 1

Ladder length

Retracted, extended , elevated

Answer 1

Retracted - 35.8
Extended - 105
Elevated - 110

Question 2

Outriggers

Answer 2

Double box beam and jacks

Powered by double acting hydraulic cylinders.

Question 3

Ladder degrees of elevation.

Answer 3

-5 to 75

Question 4

Ladder pipe coupling

Answer 4

Electro hydraulic hydro swivel coupling

Question 5

Ladder pipe material and diameter

Answer 5

Aluminum
5’ - 3.5. 4 sections
.5 reduction per section

Question 6

Ladder rated flow and pressure

Answer 6

1000 gpm. Nominal 250

Question 7

Rotation limiting system

Answer 7

Works with interlock system to prevent rotation to a side where outriggers are not fully deployed.

Question 8

Personal on ladder distance apart

Answer 8

10 feet

Question 9

Distance from electrical wiring or cable and trees

Answer 9

10 feet

Question 10

Max wind allowed. / tested

Answer 10

Allowable wind 30 mph

Tested at 55

Question 11

Ladder testing. How often.

Answer 11

Yearly or after subjected to undue stress.

Question 12

Inspect all cables pulleys guides etc. …

Answer 12

Daily

Question 13

Allowable grades of road

Answer 13

Up to 6% full capacity

6-14 50%

Question 14

Ladder construction.

Answer 14

All steel u brace truss with k brace rungs

Question 15

Fast idle rpm

Answer 15

1500-1600

Question 16

Aerial elevation indicator degrees..,

Answer 16

-20 to 80

Question 17

Ladder sections

Answer 17

Base, inner mid, outer mid, fly

Question 18

Hydraulic reservoir location

Answer 18

Top of rig behind can’t side cab

Question 19

Most stable operation position

Answer 19

Off back up to 45 degrees off center line

Question 20

Slow idle rpm

Answer 20

600

Question 21

Apparatus leveling indicator

Degrees and capacities

Answer 21

Green 0-3. 100%
Yellow 3.5 - 8 50%
Red 8- 10. No operation

Question 22

Epu run times

Answer 22

3 minutes continuous

21 sec every 5 min

Question 23

Hydraulic oil three primary functions

Answer 23

Transmits power
Lubricates system
Cools unit.

Question 24

Ladder name

Answer 24

LTI AH 110 rear mount aerial.

Question 25

Tip load. Wet dry

Answer 25

750 dry

600 wet

Question 26

How often to operate epu

Answer 26

Every ten hours of continuous use

Question 27

Ladder pipe relief valve. Pressure and diameter

Answer 27

2.5

250 psi

Question 28

Max level of cribbing outriggers

Answer 28

2 levels

Question 29

Hydraulic fluid check

Answer 29

Daily inspection.

While cold and ladder stowed

Question 30

200 lb FF dropping 3 ft to a ladder causes __ of stress

Answer 30

700 lbs

Question 31

Three types of preserving testing

Answer 31

Manufacturers- FD not involved

Certification. - third party. UL

Acceptance. - FD performs or oversees before final acceptance.

Question 32

Counter balance valve

Answer 32

Designed to prevent undesirable motion of aerial ladder

Question 33

Actuator valve

Answer 33

Controls flow from areal to hydraulic cylinders.

Question 34

Trunnion

Answer 34

The pivoting end of the piston arm

Question 35

Stack valve

Answer 35

Multidirectional valve in aerial device

Question 36

Monitor valve

Answer 36

Multidirectional valve in hydraulic systems