Review test questions Flashcards
1
Q
When performing a capacity test the first desired pump pressure should be what psi
A
150
2
Q
Pre-service testing of an apparatus includes which tests
A
Manufactures test
pump certification test
acceptance test
3
Q
Performance tests are defined as what
A
Annual testing , Or testing following a major repair during the service life of an apparatus
4
Q
manufacture testing include what 2 tests
A
Road test and hydrostatic test
5
Q
During the road test of a manufacturers testing the apparatus must accelerate to 35 miles/ an hour in how many seconds
A
25
6
Q
During the road test of a manufactures testing the apparatus must achieve a top speed of what
A
50 mph
7
Q
During the road test of manufactures testing and apparatus must come to a complete stop from 20 miles/ an hour within how many feet
A
35
8
Q
Define the hydrostatic test performed by manufactures
A
uses water under pressure to check integrity of pressure vessels
Pumpkin associated piping must withstand a high pressure of 500 psi for a minimum of 10 minutes
9
Q
During the performance test of a fire pump the water level of a static source must be how many feet deep
A
4’
10
Q
During a performance test of a fire apparatus the distance of the centerline of the pump intake to the surface of the water must be — for 1500 gpm capacity and—- for 2000 gpm capacity
A
10’ for 1500 gpm
6’ for 2000 gpm
11
Q
During performance testing of fire pumps, the air temperature when the testing is conducted should be between —- and —— degrees
A
0-110
12
Q
During performance testing a fire pumps the water temperature should be between what degrees
A
35-90
13
Q
During the performance testing of fire pumps the barometric pressure should be at least how many inches of mercury when corrected to sea level
A
29”
14
Q
1 inch drop in barometric pressure reduces the static lift of a pumper by approximately how many feet
A
1’
15
Q
During testing if it is found that a hose has moved more than ??? inches from the coupling you must stop the test and replace the hose
A
3/8”
16
Q
When more than one emergency vehicle is responding along the same route they should travel at least ??? to ??? feet apart
A
300-500
17
Q
All gauges used for service testing must be calibrated within how many days of testing
A
60
18
Q
During performance tests. gauges used to determine intake pressure should be calibrated to allow a range of how many inches of mercury for vacuum gauge and how many psi for compound gauge
A
30” mercury for vacuum gauge
150 psi for compound gauge
19
Q
A pump must reach ??? inches of mercury during the vacuum test in order to stay in service
A
22”
20
Q
Fire pumps 1250 GPM capacity must achieve a prime in how many seconds or less
A
30
21
Q
Fire pumps with 1500 GPM capacity must be primed within how many seconds or less
A
45
22
Q
If a pitot gauge is held too close to the nozzle it will register inaccurately higher or lower than the actual pressure
A
higher
23
Q
To minimize a chance of intake hose kinking from a dry hydrant the driver operator should do want when connecting the Hydrant to the pumper
A
Put a counter clockwise twist in the house
24
Q
Textbook definition of residual press
A
Pressure remaining in water supply system well water is flowing and is that part of the total pressure not used to overcome friction and gravity will force in Waterton fire hose pipe fittings and adapters
25
For every 1000 feet of altitude atmospheric pressure decreases by approximately how many pounds per square inch
.5
26
A flow meter must be accurate within what percentage range
+/- 5%
27
In an auxiliary cooling system heat is transferred from the engine cooling water to what
pump water
marine cooler is inserted into one of the hoses in the engine cooling system engine cooling must travel through it as it circulates through the system small tube surrounded by the water jacket that is connected to the discharge the fire pump and the pump is operating water may be circulating through the water jacket auxiliary cooler
28
The main purpose of a relief valve is to do what
Relieve excessive pressure within the pump on either discharge or intake side
29
what is the formula to determine lift?
L= 1.13 x Hg(inches in mercury)
30
When relay pumping, the smallest capacity pumper should be placed where
In the middle of the relay
31
The overall capacity of a relay is determined by what
Smallest diameter hose and the smallest pump
32
Relay pumpers equipped with adjustable intake relief valves should have them sent how many psi above the static pressure of the water system or previous pumpers discharge pressure
10 psi
33
Attack pumpers in a relay with adjustable intake relief valves should have them set between ??? and ??? psi
50 and 75
34
What is the formula for calculating flow for a tender
Tank size -10%
——————-
trip time
35
When using an in-line foam eductor, the pressure of the discharge side of the eductor must not exceed ??? percent of the eductors Inlet pressure
70%
36
what is the 2nd principle of friction loss
friction loss develops much faster than velocity
37
define elevation as used in the fire service
centerline of the pump or the bottom of a static water supply in relationship to ground level
38
water has a high surface tension which
makes it somewhat difficult to soak into dense materials
39
impinging stream nozzles usually provide what type of stream
wide fog pattern
40
which of the following determines velocity for a given volume of water
diameter of hose line
41
what term defines velocity increased beyond practical limits
critical velocity
42
the forth principle of friction loss states, that for a given velocity, friction loss is …
approximately the same regardless of the pressure on the water
43
Atmospheric pressure is greatest where
near sea level
44
What is the most likely reason wetting agents are mixed with water
It reduces the surface tension to help it penetrate deeper
45
Which is a guideline for positioning an apparatus at a structure during Woodland fire operations
Position on the leeward side
46
Which level staging occurs when the OIC designate one or more locations to draw resources from
Level two staging
47
Which NFPA standard prohibits firefighters from riding on the Tailboard wow vehicle is in motion
NFPA1500
48
Which statement is most accurate with respect to the licensing a drivers for large vehicles
States and provinces have some latitude and changing standards for drivers
49
Which NFPA standard outlines testing for brakes of apparatuses
NFPA1911
50
Why should fire pumps be tested regularly
To compare Performance to department standards
51
What lighting system has wattage ranging from 300 to 1000
Portable lights
52
Portable proportioning systems found on municipal engines have a capacity at the range in what gallonage
20 - 100
53
Cording to NFPA standards the water tank of a fire pump must have at least how many gallons
300
54
define pressure
force per unit area measured in pounds
55
how much does 1 cubic foot of water weigh
62.5 lbs
56
what consideration do engineers use when calculating water needs
domestic
industrial
firefighting
57
what is the 3rd principle of friction loss
friction loss varies inversely as the
fifth power of the diameter of the
hose
58
what is the 2nd principle of friction loss
Friction loss varies approximately
with the square of the increase in the
velocity of the flow
59
True or false private water
distribution systems are most often
found in residential developments
false
60
define force
simple measure of weight, expressed
in pounds/kgs
Influence causing changes in speed
direction shape of a substance
61
apparatus should maintain a clear
zone of at least how many feet from
railroad tracks to prevent contacted
objects on the railroad cars
30’
62
NFPA 1962
inspection, care, use of hose,
couplings, nozzles
63
at what distance may apparatus,
equipment, and personnel consider
protection from falling debris
200’
64
when can a pumpers onboard tank
be considered for use in water
supply
3rd page 137
Only after a proper size up has
confirmed location and extent of the
fire
65
When relay pumpers are equipped with an adjustable
intake relief valve, they should be set to 10 psi (70
kPa) above the static pressure of the water system to
which they are attached or:
10 psi above the previous pumper
66
What type of relay requires no adapters or other
appliances to connect intake hoses in the system?
open relay
67
attack pumpers equipped with
adjustable intakes should have them
set at what range
ifsta
50-75 psi
68
Which of the following is the formula for net pump
discharge pressure at draft?
ch. 11 - p. 409 - 9. 12
Pump discharge pressure plus intake pressure correction
69
Which of the following are most often used for
domestic or agricultural purposes but may be
specifically constructed and placed for fire
department use?
cisterns
70
Under what conditions are pumping
apparatus is rated for pump capacity & what % capacity at what range
At draft minimum 10 feet of lift from
the center of the pump to the
surface of the water through 20 feet
hard at 100% capacity
at 15' - 70% of its capacity
at 20' - 60% of its capacity
71
The rule of thumb for evaluating a
pond or small lake capacity is that for
every foot of depth for an area of 1
acre provides how many GPM for
how many hours
2nd 384
1000 gpm
5 hours
72
what is the equation for determining
net pump discharge pressure at draft
2nd 381
PDP + intake pressure correction
73
what is the equation for determining
pressure correction when drafting
Lift x total intake hose friction loss
———————————————
2.3
74
what is the equation for determining
maximum Lift
2nd 379
1.13 x Hq
75
Which of the following is a method for preventing a
pump from overheating?
Partially open tank fill or tank to pump
valve
76
During drafting operations, water below 35°F (1.7°C)
or above 90°F (32°C) may adversely impact the ability
of the pump to:
ch. 10 - p. 356 - 9.38
reach capacity
77
Which of the following is a reason water supply
systems must maintain a residual pressure of at least
20 psi (140 kPa)?
ch. 10 - p. 340 - q.10
Contamination from sources outside the main may
occur at lower pressures.
78
When setting up a water shuttle, which of the
following is MOST important to the success of the
shuttle operation?
number of vehicles necessary to maintain water supply
79
Some apparatus may be equipped with a front dump
valve; however, these designs often do not meet the
flow requirement of NFPA® 1901.
1000 gpm
80
Water tenders pumping water from their tanks
directly into the pump intake of an attack pumper is
called a:
direct pumping ops
81
low level suction strainer
flow?
depth?
2" depth
750 gpm
82
How much load capacity in terms of
percentage can aluminum ladder
lose if exposed to high heat
4
25%
83
ladders should be inspected and
cleaned how often
Monthly or after every use
84
The only NFPA requirement
pertaining to marking portable letters
is what
ladders shall only be marked at the
top 18 inches
85
NFPA 1901 recommends fire
department apparatus have a
minimum total ladder length on
aerials of how many feet
115’
86
What nozzle pressure should be
given to a fixed monitor smoothbore
breakaway nozzle
110 psi
120 psi for 2" at 1000 gpm
87
What is the flow and pressure for a
11/2" cellar nozzle
160 gpm
100 psi
88
What is the flow and pressure for a 2
1/2 inch seller nozzle
350 gpm
100 psi
89
What is the flow and pressure for a 1
1/2" distributor nozzle
95 gpm
50 psi
90
What is the flow and pressure for a 2
1/2" distributor nozzle
250 gpm
100 psi
91
1.75 x 1.75
3.06
92
1.85 x 1.85
3.42
93
2.96 x 2.96
8.76
94
define refractometer
measures amount of foam
concentrate in the solution. using
light velocity like x ray
95
what does pump discharge volume
method test
direct injection systems
96
what does concentrate displacement
method test
accuracy of volume of concentrate
drawn through system
97
what 4 methods are used to test
foam proportioning equipment
displacement method
pump discharge volume method
solution refractivity method
solution conductivity method
98
which test is generally conducted
first while conducted performance
evaluations
vacuum test
99
during testing, the flow meters used
must be + or - what percent
accuracy
5%
100
During testing if A mark on a hose
coupling moves more than—-
amount of inches from the coupling
testing should stop and replacement
of hose should occur
3/8”
101
What is the minimum diameter of
hose line to be used while
conducting pumper performance
test
2 1/2”
102
What minimum barometric pressure
(inches of mercury) should exist
during pumper performance testing
29” mercury
103
What range of water temperature
should exist when performing
pumper performance tests
35-90
104
What range of air temperature
should exist when performing
pumper performance test
0 - 110
105
NFPA 1911
standard for inspection, maintenance
& testing
106
What is the standard of the
hydrostatic test during the
manutacturers testing portion
Tank fill, tank to pump, valves are
subjugated to a minimum hydrostatic
test of
500 psi for a minimum 10 minutes
107
At what speed and distance must
and apparatus come to a stop during
the road test
20mph stop in 35'
108
What is the maximum top speed that
must be achieved during the road
test
50 mi. per an hour
109
What acceleration standard is used
for the road test within 25 seconds
Accelerate to 35 miles per an hour
within 25 seconds
110
What are the two types of testing for
apparatuses
Pre-service test and performance
tests
111
What is the MOST common type of installed
proportioner used in modern fire apparatus?
around the pump
112
Using an in-line eductor requires the user to
understand that foam concentrate becomes less
ViScouS:
when heated
113
Which type of nozzle should be used with protein
foam concentrates?
air aspirating nozzle
114
The type of concentrate used, whether or not the fuel
is on fire, and whether the fuel is contained or
uncontained, are variables that affect the foam's:
rate of application
115
Products used as extinguishing agents as well as pre-
treatment of structures threatened by fire spread, and
that generally retain their fire retarding properties,
are called:
durable agents
116
What is one tactical advantage of choosing CAFS over
a low energy foam proportioning system?
further reaching streams
117
Which of the following is a type of in-line eductor that
may be used to supply foam concentrate to a self-
ducting master stream?
jet ratio controller
118
How are water aspirating devices different from other
medium- and high-expansion foam producing
nozzles?
larger & longer
119
Which of the following BEST describes the purpose of
hydrocarbon surfactants included in Class A foam?
reduces the surface tension of water
120
advantage of a self educting nozzle is
the pressure drop is much lower than with most
standard foam nozzle eductors.
121
Which type of foam concentrate are air-aspirating foam nozzles MOST accurate?
only nozzle for fluroprotein concentrates
122
The application rate for Class A foam is the same as:
minimum flow rate for water
123
Insufficient lubrication of the permanently mounted
coupling system attaching the "trailer" to the "tractor"
power unit in tractor-drawn aerials will result in:
the coupling system binding creating difficulty in
steering control.
124
All elevating platforms must have a minimum load
capacity of ???
when the aerial device is fully
extended at any elevation within its normal range of
motion, and with no water in the piping system.
750 lbs
125
The insurance industry requires apparatus testing in
order for the community to receive full insurance
rating credit, and this ultimately affects the
insurance:
rates for customers in the jurisdiction
126
Most water towers are designed so that their fire
streams may be deployed at a range of elevations
starting from a few degrees below horizontal to
nearly
from the ground.
90 degrees
127
The valves that prevent unintentional or undesirable
motion of the aerial device from its established
position are known as:
counter balance valves
128
Which of the following is one of the main uses of
aerial ladders?
elevated master stream application
129
Which of the following should driver/operators
periodically perform in regard to salvage, overhaul,
and loss control equipment?
inventory equipment per sop
130
What are two types of tests for Ariel
apparatus
Preservice test
service tests
131
At a minimum driver operators of
Ariel devices should perform basic
inspection/maintenance on which 7
systems of the aerial
Cable
hydraulic
slides and rollers
stabilizing
safety
breathing air
communication
132
How often should electrical power
cords be examined by the driver
operator
Daily for damage the insulation in
connections
133
True or false NFPA 1901 requires
aerial devices to be equipped with
breathing air systems
false
134
generally the minimum internal
diameter of a telescoping waterway
is what
4”
135
what are 3 types of pre piped aerial
ladder waterway's
bed ladders system
telescoping system
pinnable telescoping system
136
Elevating platforms 110 feet or
shorter should be able to be raised
from the bedded position to max
elevation Max extension and rotated
90° in how many seconds
150 sec
137
What is the required minimum floor
area of an aerial platform
14 sq ft
138
what are 3 types of elevating plate
forms
aerial ladder
telescoping
articulating
139
normally hydraulic pressure is in
what ranges
800-3000 psi
140
what are 3 types of aerials
aerial ladder
elevating platform
water tower
141
Which of the following methods of foam solution
conductivity testing would be performed using a
handheld temperature compensated conductivity
meter?
Conductivity calibration curve testing
142
purpose of hydrostatic testing
ensure that the pump and associated piping are
capable of withstanding high pressure pumping
demands.
143
Most railroad companies advisor
vehicles be kept at least how many
feet from the tracks when possible
25’
144
The maximum load for any
unsupported aerial device occurs
from operating between what angles
70-80
145
At what degree angle provides the
greatest ability when jackknifing a
tillered Ariel apparatus
60 degrees
146
At what distance should overhead
clearance be from overhead high-
voltage lines
and at what distance should
overhead clearance be for high-
voltage transmission lines
10’
50’
147
What factors should be considered
for scene conditions regarding turn table placement
Surface
grade
wind
overhead obstructions
angle & location of Ariel operation
special situation's
148
define proper distance
maximums stability
best climbing angle
adequate extension
149
What is the minimum diameter hose line that may be
used to conduct pump performance tests?
2 1/2”
150
What does foam solution conductivity testing
measure?
quality of synthetic foam
151
Why is the foam solution conductivity test used rather
than the refractivity test to check the quality of
synthetic based foam?
Synthetic foam it’s too light in color
152
According to NFPA® 1901, pump certification tests
must be conducted on apparatus equipped with a fire
pump of:
750-3000 gpm
153
Which of the following tests is required as part of
pumper performance testing?
pressure control test
154
Which method for testing a foam proportioner is
often used by certain direct injection type
proportioners?
Foam concentrate pump discharge volume method
155
When using the foam concentrate displacement
method to test the foam proportioner, where is the
water drawn from?
a calibrated tank
156
If apparatus bid specifications include requirements
from NFPA® 1901, which test are manufacturers
required to conduct in addition to pump certification
tests?
road test
157
NFPA 1150
Standard on foam chemicals for fire
in class A fuels
158
Air aspirating foam nozzles are the
only nozzles that should be used
with what type of concentrates
Protein and fluoroprotein
concentrates
159
Fog nozzles are not an acceptable
choice for delivering what type of
foam
Fluoroprotein foams or on Incidences
involving polar solvents
160
Smoothbore Nozzles are limited to
what type of foam
Class A foam from CAFS
161
define bypass type balanced
pressure proportioner
proportioner that operates in tandem
with a fire water pump to ensure
proper foam concentrate to water
mixture
One of the most accurate
used on large mobile apparatus
162
While using an in-line eductor, the
pressure at the discharge side must
not exceed what percentage of the
inlet pressure
70%
163
what two mechanical methods are
used to proportion foam
Venturi effect
pressurized proportioning devices
164
NFPA defines high expansion foam
as having what ratio
200:1 - 1000:1
165
NFPA 11 defines medium expansion
foam at what ratio
20:1 - 200:1
166
NF PA 11 defines low expansion foam
as what ratio
20:1
167
what is the shelf life of synthetic
class B foam
20-25 years
168
what is the shelf life of class B
protein based foam
10 years
169
define synthetic class B foam
mixture of thorough surfactants and
proteins derived from animals
170
If the manufacturer recommends that its device be
operated in a supported position, the load or the
amount of extension for the aerial device must be
reduced for:
low angles of elevation during unsupported operations.
171
If the aerial apparatus is going to be used in a support
role, the apparatus should be parked:
in a manner that does not block other apparatus that
need to be closer to the work area.
172
Which of the following is the MOST likely reason there
may be a delayed response from a fire apparatus
when responding to an incident on a highway?
The apparatus may have to travel a long distance
between exits.
173
In tactical considerations, which of the following does
the proper distance between the objective and the
aerial apparatus afford?
maximum stability
174
Which of the following is a primary use for aerial
apparatus during aircraft incidents?
To transport firefighters and portable equipment to
upper levels
175
class A foam proportioning range
with a air aspirating nozzle
.3-.7%
176
Class A foam proportioning range for
exposure protection
.5-1%
177
Class A foam application rate range
for overhaul
.2-.5%
178
what is the typical range of capacity
for municipal fire apparatus foam
tanks
20-200 gal
179
4 methods to store foam
Pails
barrels
totes
apparatus tanks
180
4 methods to proportion foam
education
injection
batch mixing
pre-mixing
181
Most firefighting foam concentrates
are formulated to mix with water at
what percentages
.1-6%
182
During drafting operations, the amount of friction
loss is ???
to the amount of water moving through
the hose or appliance.
proportional
183
The engine rpm should be kept as low as possible
without causing the engine to stall when using a(an):
vacuum type primer
184
What type of pressure is being displayed on the
intake gauge when the pumper is discharging water?
residual
185
To create an effective fire stream during drafting
operations, a lift of no greater than
is
recommended.
20’
186
when supplying a standpipe system
do not exceed pump discharge
pressure of ???
unless the system
hose and appliance has have
designed to function under high
pressures
185 psi
187
14.7 psi atmospheric pressure is
equivalent to what in inches of
mercury?
30” mercury
188
A pump rated at 750 gallons per
minute is normally supplied with 4.5"
intake hose to achieve rated
capacity. when equipped with a 5
inch intake hose the capacity of the
pump is increased to what?
820 gpm
189
With an atmospheric pressure at sea
level of 14.7 psi what is the partial
vacuum read on the intake pressure
gauge?
-2 psi or 4” mercury
190
define pressure differential
Effect of altering the atmosphere
pressure within a confined space by
mechanical means when air is
exhausted from within the space a
low pressure environment is created
as replacement air will be drawn in
191
The entire priming action typically
requires ???
seconds from the start
to finish
10-15 seconds
192
below
degrees in Fahrenheit or
above
degrees in Fahrenheit
may adversely impact the pumps
ability to reach capacity
35/90
193
The reverse lay has become a
standard method for setting up a ???
operation when using medium
diameter hose as a supply line
relay pumping
194
What is the most popular method to
power a rotary vein priming pump?
electric motor
195
it is generally recommended that
when using add-on intake pressure
relief valves, they be set to open with
the intake pressure rises more than —-
PSI of necessary operating
10 psi
196
NFPA 1901 requires pressure control
devices to operate within how many
seconds after the discharge pressure
rises and restricts the pressure
3-10 seconds
197
What size discharge piping & valves
must be used to supply discharges
of one and a half to 2 inch hand lines
2”
198
According to NFPA 1901, fire
apparatus with a rated pump
capacity of 750 GPM or more must
be equipped with how many 2 1/2
inch discharges
2
199
Pumps rated greater than ???
GPM
capacity may require more than one
large intake connection at each
location
1500
200
in mid ship mount pumps the gear
ratio is set so that the rotation
required for the impeller to deliver a
rated capacity of the pump is usually
how many times faster than the
engine itself
1.5-2.5
201
midship pumps may be operated by
either a series of gears or what
drive chain or belts
202
which type of primer primes the
pump by connecting a line from the
intake manifold of the engine to the
intake of the fire pump with a valve
connected in the line to control it
vacuum primer
203
which type of primer uses an oil
supply or some other type of fluid to
seal the gaps between the gears and
the case and to act as a preservative
and minimize deterioration
positive displacement primer
204
The ???
of the centrifugal pump
collects the water & confines it, in
order to convert the velocity to
pressure
the casing
205
define wear rings
replaceable rings are attached to the
impeller indoor pump casing to allow
us all running clearance between
impeller and pump casing without
causing wear of either
to maintain the preferred spacing
instead of replacing the entire pump
206
Power operated transfer valves may
operate at pressures has high as
what?
200 psi
207
At what percent range is the first
impeller increase pressure a
discharge when pumping and series
50-70%
208
what three factors influences a
centrifugal fire pumps discharge
pressure
Amount of water being discharged
speed at which the impeller is turning
pressure of water when it enters a
pump from a pressurize source
(hydrant relay etc.)
209
Which type of pump is referred to as
a "constant flow machine"
positive displacement pumps
210
When calculating the required pump discharge
pressures for each of the listed layouts on a pump
chart, round pump discharge pressure to the nearest:
5psi
211
The condensed Q formula maybe ???
percent greater then when using the
traditional friction loss formula
20%
212
what three items do manual or
mechanical hydraulic calculators
indicate
Water flow
size of hose
length of Hose lay
213
how accurate should flow meters be
when properly calibrated and in good
working condition
+ or - 3%
214
define automatic fog nozzle
aka variable flow nozzles
nozzle with an ability to change
patterns while maintaining same
nozzle pressure
if gpm changes, it will auto adjust to
maintain same pressure & pattern
215
The reach of a fog stream is directly
related to what
width of stream
size of the water particles
wind
volume of water flowing
216
When calculating the required pump discharge
pressures for each of the listed layouts on a pump
chart, round pump discharge pressure to the nearest:
5 psi
217
What is the equation for determining friction loss in
4-inch hose using the Condensed Q formula?
Q^2
——-
5
218
The gpm flowing method is applicable to what types of nozzles
both solid and fog nozzles
219
When testing hard suction hose a
vacuum of.
—- must be developed
and be held for —-
minutes in order
for it to pass
22”
10 min
220
All stations will have how much 1.88
inch hose in reserve
13x50'
Enough to replace longest line and
longest Cross lay
221
How many Akron assault metal bail
breakaway fog nozzles will engines
have
6
222
All stations will have how much 2.5
inch hose in reserve
200’
4x50’
223
All stations will have how much 3
inch hose in reserve
200’
4x50’
224
All stations will have how much 4
inch hose in reserve
225
All engines will carry a minimum of
how much 3 inch hose line
300’
226
Each vehicle should have a minimum
of how many cable & heavy chains
2 sets
227
On limited access highways and
turnpikes apparatus should not be
driven against the normal flow of
traffic unless
the road is closed by police
228
Companies in staging must be ready
to respond within —-
of being called
3 min
229
Where should the EMS vehicle
position on incidents where there are
victims requiring intervention
vicinity of the triage/treatment atea
230
How far back from a vehicle should
the spotter to be standing
8-10’
231
define transmission retarders
viscous property of automatic
transmission fluid is used to retard
the driveline by introducing it to a
housing and energy absorbed into
the fluid through opposing action of
spinner veins
232
define electro magnetic retarders
Electro mounted in driveline or
supplied as part of the rear axle
when activated electromagnetic field
is created in supplies electrical
power to coils in the retarder
inhibiting rotation of the rotor braking
torque at the rear wheels
233
which 2 auxiliary braking systems
provide the highest level of braking
torque & are unaffected by
transmission gear shift changes
transmission out put retarders
electromagnetic retarders
234
what two things must a driver know
when preparing to start the
Apparatus
destination
route
235
Which braking system has a snow
and mud switch
Antilock braking system with
automatic transfer control
236
Which braking system has a dry
Road slippery road switch
front brake limiting valve
237
Whenever a vehicle undergoes a
change in speed or direction, weight
transfer takes place relative to what
rate & degree of change
238
To avoid over speeding as a result of
improper downshifting or Hill
descent choose a gear that allows
the engine to operate at an rpm ???
lower than the maximum recommended rpm
200-300 rpm
239
How quickly should the oil pressure
gauge indicate a reasonable amount
of pressure
5-10 seconds
240
NFPA 1901 requires pumpers to have
a minimum tank capacity of what
300 gallons
241
How often should air brake testing
procedures be conducted
daily
242
Portable lights generate how many
watts
300 - 1000 watts
243
Which of the following are the most
common power source used for
emergency services
generators
244
NFPA standards specify that the
minimum pump capacity for pumpers
is?
750 gpm
245
Arial apparatus with a pump are
called what, and rated to what pump
capacity & tank capacity?
Quints
pump rated to minimum 1,000 gpm
water tank minimum 300 gpm
246
NFPA 1451
Standard for fire department vehicle
operations training program
247
NFPA 1582
Standards for comprehensive
occupational medical programs
248
Which operator performs the final positioning of the
aerial ladder during rescue or other fire fighting
operations?
Secondary control operator
249
Which of the following situations is a platform aerial
device not designed to routinely handle?
Operating on a grade
250
Who selects the length of the tether that is used as a
fall protection feature for aerial devices?
Safety officer
251
Which of the following pieces of equipment can be
used in below-grade operations, while not exceeding
weight restrictions?
Winch mounted to the platform
252
NFPA® requires an aerial elevating platform to have a:
Heat shield and water curtain nozzle
253
The operational speed of an articulating aerial device
is directly proportional to the:
Amount the control lever is pushed or cold
254
What NFPA® standard specifies static load
requirements for an aerial apparatus when operating
on a grade?
NFPA 1901
255
NFPA 1911
Standard for the inspection
maintenance testing and
retirement of in-service
automotive fire apparatus
256
Which of the following describes the effects interlock
has on the stabilization system while the aerial device
is in use?
Prevents the flow of hydraulic fluid in or out of the
stabilization system
257
Operating stabilizer controls in an aerial apparatus
will automatically regulate:
engine idle speed
258
Excessive loading on the aerial device will result in an expansion of the gravity circle- true or false?
true
259
Failure to maintain space between the chock blocks
and the tires when lowering the apparatus may
cause:
It will be necessary to relift the Ariel and remove the chock blocks
260
A correction of lateral unevenness is
possible on grades up to what
percent
5%
261
What three steps must the driver
operator make to conduct
preliminary checks when applying
stabilizers
Insure front brake lock is on
ensure PTO is engaged light lit
chalk wheels
262
hydraulic ventilation
Fog nozzle 2’ from opening 80% of opening covered
263
Lateral grades of what range in percent can be corrected using the stabilizers
page 16
5-6%
264
A truck company with an outrigger deployed could concentrate a weight of more than how many pounds
40,000 or 400 psi
