LADDER

Question 1

what stations are platform ladders

Answer 1

L7, L13, L21

Question 2

aerial platform stabilizers will correct for __ degrees of slope and grade

Answer 2

5

Question 3

4 types of valves in hydraulic systems

Answer 3

check valves
relief valves
counterbalance valves
selector valves

Question 4

8 reasons why you’d come to a complete stop

Answer 4

directed by law enforcement
red lights
stop signs
negative right of way
blind intersection
driver cannot account for all lanes of traffic
stopped school bus with flashing lights
other intersection hazards

Question 5

3 tools/equipment that the ladder truck carries that are not on AFR engines

Answer 5

K12
chainsaw
lighting

Question 6

window ventilation rules (3)

Answer 6

position aerial device slightly above and to the upwind side of the window
take out windows on the downwind portion first
clear all glass

Question 7

you’re flowing 2000 GPM on an aerial ladder, what is the friction loss if there is 100’ of 5” laid

Answer 7

32

Question 8

reduce load by 50% at these wind speeds
seagraves:
new pierce platforms:
pierce ladders:

Answer 8

20 mph
25 mph
50mph

Question 9

who is required to take driver refresher training

Answer 9

all that is listed

Question 10

three routes for rescue

Answer 10

1st choice: interior stairwell
2nd choice: reliable exterior fire escape
3rd choice: ground/arial ladders

Question 11

___ extension at ___ angles = ___

Answer 11

long, low, high stress

Question 12

three types of ladder stabilizers

Answer 12

A-frame, box, straight jack

Question 13

what mode should the pinable waterway be secured when the ladder is bedded

Answer 13

rescue mode

Question 14

if wind is over ___ mph, all weights are ___

Answer 14

50 mph, reduced by 50%

Question 15

ladders should be spotted a minimum of ___ ft away from powerline

Answer 15

10ft

Question 16

what are the two angles of aerial device operations and which is most stable

Answer 16

longitudinal axis (most stable)
perpendicular axis

Question 17

all AFR ladders are designed to operate in what position

Answer 17

cantilever (not rested)

Question 18

what does L17 and L20 carry in order to manually adjust the waterway

Answer 18

9/16” wrench

Question 19

what order of priority are victims rescued in

Answer 19

most severely threatened by fire conditions
largest number of groups of people
remainder of people in fire area
people in exposed area

Question 20

every __ GPM flowing will add __ of weight to structure every minute

Answer 20

250gpm, 1 ton

Question 21

what are 3 portions of an aerial ladder

Answer 21

base, top rails, rungs

Question 22

Per NFPA 1901, the narrowest portion of the aerial ladder cannot be narrower than how many inches ?

Answer 22

18”

Question 23

per NFPA 1901 aerial rungs are spaced __ on center

Answer 23

14”

Question 24

aerial ladders less than 110 ft are required to be raised and rotated 90 degrees in __ seconds or less

Answer 24

120

Question 25

aerial platforms required to be raised and rotated 90 degrees in __ secs or less

Answer 25

150

Question 26

aerial ladders 100ft or greater are required to be raised and rotated 90 degrees in __seconds or less

Answer 26

180

Question 27

what are the 3 classes of ladders

Answer 27

aerial ladders elevating platforms water towers

Question 28

what is the minimum amount of ground ladders required to be on an aerial apparatus per NFPA 1901

Answer 28

115ft

Question 29

what are the 4 main tactical uses for aerial devices

Answer 29

rescue access to upper floors ventilation fire suppression

Question 30

what are the 4 operational strategies for an aerial apparatus

Answer 30

rescue exposure protection ventilation elevated fire attack

Question 31

if fire fighting on a building 5 floors or more, position the ladder on ___ side of pumper

Answer 31

inside

Question 32

if fire fighting on a building that is 4 floors or less, position the ladder on ___ side of pumper

Answer 32

outside

Question 33

for a close-up blitz attack, what is the best angle

Answer 33

30 degrees, off the ceiling, nozzle even with sill

Question 34

outrigger pad pressure with and without pads

Answer 34

150 psi without pads 75 psi with pads

Question 35

emergency hydraulic power time (EPU)

Answer 35

old pierce - 7 mins work, 30 mins rest platform - 30 mins work, 30 mins rest seagraves - 5 mins work, 25 mins rest

Question 36

when stabilizing ladder with outriggers, rear tires should be off the ground about __ to __ inches

Answer 36

0.5-1"

Question 37

when you are in the green on the level indicator, the ladder is considered at

Answer 37

100% full load capacity

Question 38

if a person is on the tip, never __ or ___ the ladder

Answer 38

retract or extend

Question 39

ladder internal relief valve pressure

Answer 39

230-250 psi

Question 40

what is the fog curtail psi for aerial platform

Answer 40

75 psi

Question 41

what ladder beds at 0 or negative psi

Answer 41

seagraves

Question 42

the aerial ladder should be bedded at what psi

Answer 42

1800 psi

Question 43

aerial ladder stabilizers will correct for ___ degrees of slope and grade

Answer 43

3

Question 44

if A-frame ladder is operated on a slope, which end should face downhill

Answer 44

front of truck with ladder extended over rear, at an angle of 45 degrees from center line

Question 45

when operating over the downhill side of the vehicle and the vehicle suspension cannot be fully unloaded on the nonworking side, what happens to the ladder load capacity

Answer 45

it is reduced by half

Question 46

what are the two types of platform ladders

Answer 46

100ft rear mount 95ft mid mount

Question 47

what does PTO stand for

Answer 47

power take off

Question 48

max operating pressure for yellow and green 5"

Answer 48

yellow: 185 psi green: 275 psi

Question 49

max loading for ladder is between __ and ___ degrees from horizontal

Answer 49

70 and 80

Question 50

collapse zone = ___ times the building height

Answer 50

1.5 times

Question 51

where do you position the aerial in the windows

Answer 51

place tip with first rung even with sill 4-6" off the objective (cantilever)

Question 52

where do you place the platform ladder in the window

Answer 52

top rail of platform even with the sill

Question 53

where do you position aerial ladder for roof rescue

Answer 53

place tip at least 6' above roof line

Question 54

where do you position platform ladder for roof rescue

Answer 54

bottom of platform at the roof or parapet level (cantilever)

Question 55

three conditions that may affect exposure

Answer 55

weather building construction space between fire and exposures

Question 56

safe operating angles at full load capacity for aerial ladder

Answer 56

0 to 3.5 slope 0 to 5.5 grade

Question 57

safe operating angles at reduced load capacity for aerial ladder

Answer 57

3.6 to 5.5 slope 5.6 to 6.5 grade

Question 58

safe operating angles at full load capacity for a platform

Answer 58

0-5 slope and grade

Question 59

safe operating angles at reduced load for platform

Answer 59

5.1 to 8 slope and grade if angle is greater than 8, reposition

Question 60

when stabilizing ladder with outriggers, rear tire should be off the ground about __ to __ inches

Answer 60

0.5-1" A frame should be 6"

Question 61

when in the green on the level indicator, the ladder is at what

Answer 61

100% load capacity

Question 62

how should safety pins be placed

Answer 62

from the outside with face towards the ladder

Question 63

4 steps for ladder operation when raising the ladder

Answer 63

elevate, rotate, extend, lower

Question 64

when operating tip controls, aerial operates at __ of normal control speed

Answer 64

1/4

Question 65

when do you use override controls

Answer 65

to get out of dangerous situation

Question 66

what should you make sure before retracting the ladder

Answer 66

ensure drain valve is open for waterway and all personnel are removed

Question 67

aerial generator watts, volts, and amps

Answer 67

10,000/6,000 watts 240/120 volts 80/40 amps