State Test Flashcards
(185 cards)
1
Q
In a wildfire attack the position of the apparatus is the what?
A
The Anchor
2
Q
When does brake fade occur?
A
When the brakes overheat
3
Q
What area is between wild-land and rural area?
A
`Wildland urban interface
4
Q
Older vehicles may be equipped with what type of braking system?
A
Hydraulic braking system
5
Q
The vehicle weight with no water, tools, or passengers is what?
A
Curb weight
6
Q
DEF is used to reduce what?
A
Nitrogen Oxide
7
Q
If the operator on an aerial has the DCDL locked and hears tires scrubbing what should
he do?
A
Not worry because it is normal
8
Q
Brush trucks have the ability to do what
A
Pump and Roll
9
Q
Audio sirens out run the effective range its audible warning device at speeds above
what?
A
50mph
10
Q
What are some of the problems with homemade pumpers?
A
They are top heavy
11
Q
2 short blast of the air-horn indicate what?
A
Backing up
12
Q
Water Tenders must be capable of a portable tank at what GPM?
A
1,000 GPM
13
Q
Engine lugging is caused by?
A
The manual transmission being into too high of a gear
14
Q
Play in the steering wheel of more than what % is not allowed?
A
10%
15
Q
NFPA 1901 requires water tenders to be designed to be filled at rate of ______ gpm?
A
1000
16
Q
When water hammer occurs it goes all the way back to?
A
Water Main
17
Q
Back Pressure is also known as?
A
Head pressure
18
Q
It is dangerous and discouraged to ___ while filling trucks?
A
Filling through the TOPS of tanks
19
Q
Most common drafting problem?
A
Air Leaks
20
Q
What is the proper flow rate percentage?
A
(100%) of their maximum flow rate at 150 PSI
(70%) of their maximum flow rate at 200 PSI
(50%) of their maximum flow rate at 250 PSI
21
Q
Most common relief valve?
A
Spring-controlled pilot valve
22
Q
Nozzle commonly used in aircraft fires, car fires, voids, attics?
A
Piecing nozzle
23
Q
What indicates the status of vehicles alternator and charging system?
A
Amp meter
24
Q
What prevents water movement inside of tanks?
A
Baffles
25
Vacuum gauge should read?
22 inches of mercury (-75kPa)
26
What is the symbol for mercury?
HG
27
`Brakes should be tested?
Annually
28
When should volunteer departments do truck checks?
Weekly (After each call)
29
Inverters watts
1500 watts
30
Portable generators watts
5000 watts
31
Rescued fixed mounted generators watts
50,000 watts
32
Least capable auxiliary brake devices?
Exhaust brakes
33
Why you should never REV diesel engine?
Damage internal components
34
Pump capacity of 750 GPM or greater should have how many discharges?
2
35
Standpipe should be supplied at what PSI?
150 PSI
36
All gauges should be calibrated within?
60 days
37
Driver operator is involved in what test?
The acceptance test
38
Pump certification is done by?
Independent testing organization (CFPI)
39
What is theoretical lift height?
33.9ft
| A pump that develops a perfect vacuum at its suction end can lift a column of water
40
What is maximum lift?
25ft
41
Hight a column of water may be lifted in sufficient quantity to provide reliable fire flow is ?
Dependable Lift, 14.7ft
42
What offers increased efficiency over a pitot gauge?
A flow meter
43
____ and drive slow when driving through smoke
Sound the horn frequently
44
Objects in motion tend to stay in ____
Motion (law of inertia)
45
Pumping a hose into water tank during water shuttle operations does?
Prevents overheating
46
Trucks built after the 90’s on are usually equipped with?
ABS breaks
47
Newer trucks use what break system
Air actuated breaks
48
Air horns will not operate under?
80 PSI
49
If an apparatus does not reach adequate air pressure in the allotted time, it may be
necessary to do what?
Add an electric air compressor
50
A midi-pumper chassis weight
12,000lbs
51
2 short horn blasts indicate?
Backing
52
Brush truck GPM?
500 tank size and 500 GPM
53
Hand and palm placement for spotter during backing?
Palms facing spotter
54
Hand and palm placement for spotter telling driver to move forward?
Palm away from spotter face
55
Minimum distance for drafting?
24’’ (2 feet)
56
What helps control hard suction drafting hose?
Attaching a rope to the strainer
57
How can most apparatus or equipment fails be prevented?
Preforming routine maintenance checks
58
Tank fill sizes?
1000 gallons or less – 1 inch
| 1000 gallons or more – 2 inches
59
Required stopping distance of new trucks at 20 mph
35ft or less
60
Most common sizes for LDH supply line?
4 or 5 inches
61
Most apparatus damage occurs during?
Backing
62
Most collisions occur?
At intersections
63
Best location for command at a scene?
Corner of building
64
Weight of one gallon of water?
8.35
65
When a pumper is connected to a hydrant and with the first line open the is a drop in
residual pressure of 20% this would indicate that the hydrant should be able to supply?
Two times the amount of water (one additional setups)
66
Most common type of valve?
Ball valve
67
Nozzle pressures?
```
Solid stream (master stream) – 80 psi
Fog (master stream)– 100 psi
```
68
A foam system that combines air under pressure with a foam solution
Compressed air foam system (CAFS) Class A foam
69
Amount of travel the clutch has before it begins to disengage
Free play
70
Conduct that constitutes a willful or reckless disregard for duty
Gross negligence
71
According to NFPA 1911 Tires should be replaced every?
7 years
72
All tires on an apparatus must?
match
73
GPM of master stream
350 GPM or greater
74
Floating strainer may be used in water as shallow as _____
2 foot of water
75
Floating pump capacity is?
500gpm
76
Examples of static water?
Dry hydrants, storage tanks, lakes, or streams
77
Strobe lights that activate traffic emitters cause lights to?
Turn the signal green in the direction of travel
78
ABS systems don’t stop the vehicle faster but what do they do?
Greatly increase controlled stops
79
When is the engine speed check down?
With no load
80
Steering wheel sensors along with accelerometers are also equipped with what?
Stability control sensors
81
An operator must get in the cab and start the engine to preform what test?
Function test
82
Turning off appliances to prevent overload is known as?
Load shedding
83
What turns things on in intervals as to not do it all at once?
Load sequencers
84
What is the only fluid you check while the engine is running?
Transmission
85
What is used for an efficient connection to a natural water source with a pre-piped
system?
Dry hydrant
86
During a water shuttle operation what do you do after the first tender delivers water?
The dump site pumper begins to draft
87
Agitation and turbulence during pumping operations?
Critical velocity
88
Most common fire pump?
Centrifugal
89
Hub, shroud, vane and impeller are parts of?
Centrifugal pump
90
Spiral section of the pump is called?
Volute
91
All apparatus weighing over _____ must be equipped with an auxiliary brake system
36,000 lbs or greater
92
When training on a tiller you might have to?
Add a detachable seat for the instructor
93
Drivers may want to use ___ during emergency response?
Excessive speed
94
Must common elevating water devices are _____ tall?
50-75ft
95
Foam proportion?
97 parts water, 3 parts foam
96
The D/O must ensure all occupants are wearing seatbelts. Confirmation must be made
___ before moving apparatus.
Verbally
97
When is the break exhaust activated?
When you remove the pressure off of accelerator (foot off the gas pedal)
98
What GPM’s does PTO drive limit pump capacity to?
500 GPM’s
99
What is the typical length for intake hose used for hydrant connection?
10-20ft
100
How often should a pumper be tested?
Annually
101
What is the term for laying supply lines from the hydrant to the fire scene?
Forward lay
102
What is the term for laying supply lines from the fire scene to the hydrant?
Reverse lay
103
Apparatus equipped with a fire pump whose rated capacity is less than 750 GPM are
required to undergo the same certification test as a pumper over 750 GPM with the
exception of?
Pumping engine overload test
104
Ground reservoirs are man made impoundments that have the same characteristics of a pond or small lake they are most commonly found at_____
A. Commercial Properties
B. Industrial Properties
C. Municipal Water Treatment facilities
D. All of the above
D. All of the above
105
Pump piping on a fire apparatus must be able to withstand a hydrostatic test of ____ PSI
500
106
NFPA 1901 braking tets requires that a new apparatus be brought to a complete stop from a speed of 20 MPH within ____ feet
35
107
All fire apparatus with a rated pump capacity of 750 gallons or larger must be equiped with how many 2-1/2 inch discharges?
2
108
Because a total Vacuum is not possible in field operations, fire department apparatus have a max lift of ____ feet.
25
109
The items a D.O. is responsible should be dictated by?
Dept. SOP
110
The items a D.O. is responsible should be dictated by?
Dept. SOP
111
When conducting a pump service test, the atmospheric air temp should not be above ____ degrees fahrenheit.
100
112
which of the following is false?
A. Apparatus cleanliness is only for maintaining good public relations.
B. Fire apparatus should be kept clean underneath as well as on top.
C. Keeping the apparatus body clean also helps promote a longer vehicle life.
D. Over cleaning can have a negative effect.
A.
113
On apparatus with air brakes, NFPA requires the air pressure to build to a sufficient level to allow the vehicle operations within ___ seconds of starting
60
114
Which of the following is false concerning washing the exterior of an apparatus?
A. during the first 6 months after an apparatus is received, wash with cold water.
B. During the first 6 months after an apparatus is received, wash with hot water.
C. never remove dust or grit by dry rubbing.
D. try to wash mud or dirt before they dry.
B.
115
Elevating water devices typically range in height from ____ to____ feet
50-75
116
Rescue vehicles commonly have generators capable of _____ watts
50,000
117
When pumping into a fire dept. connection to a sprinkler system, the water passes through a valve which prevents water flow from the sprinkler system backing into the FDC. This is a ____ valve
Check/clapper valve
118
When using 2-1/2 or 3 inch hose lines to supply the pumper directly off hydrant pressure, it is recommended that the lines be no longer than ____ feet.
300
119
Intake hose sections are commonly 10-___ feet long
50
120
Ideally, the command vehicle should be positioned ____ of a building
On the corner
121
engine companies that carry large quantities of ground ladders, but do not have main aerial devices is a?
Quad
122
Apparatus equipped with a fire pump whose rated capacity is less that 750 GPM are require to undergo the same certification test as a pumper over 750 GPM with the exception of?
Pumping engine overload test
123
When conducting a vacuum test, run the priming device until the test gauge shows 22 inches of mercury developed. reduce the amount of mercury developed 1 inch for every ___ feet of altitude.
1000
124
When conducting a vacuum test, run the priming device until the test gauge shows 22 inches of mercury developed. reduce the amount of mercury developed 1 inch for every ___ feet of altitude.
1000
125
NFPA 1901 states that piping should be sized so that pumpers with a capacity of 500 GPM or less should be capable of flowing ____ GPM from their booster tank.
250
126
When supplying a sprinkler system, it is a general rule of thumb one 1000 GPM rated pumper should supply the fire Dept. connection for ____ sprinklers that are estimated to be following
50
127
When drafting, the max theoretical lift is ___ Feet
33.9
128
Apparatus with air brakes are to be equipped with an air pressure protection valve that prevents the air horn from being operated when the pressure in the air reservoir drops below ____ PSI
80
129
Which of the following is false as it pertains to rear mounted pumps?
A.Rear mounted pumps provide a more even weight distribution on the apparatus chassis.
B. Rear mounted pumps give the D.O. more protection from traffic exposure.
C.Rear mounted pumps allow the apparatus to have more compartment space.
D.Rear mounted pumps are becoming more popular for fire Dept.s
B.
130
According to NFPA 1901, a mobile water supply apparatus must carry at least ____ gallons
1000
131
Portable generators are designed to provide power with___watts of power being the largest.
5000
132
Which statement bellow is false?
A. Industrial, airport, and municipal fire departments commonly have pumpers capable of discharging firefighting foam on class B fires.
B. Industrial foam pumpers are built according to NFPA 11C only.
C. Industrial, airport, and municipal fire departments commonly have pumpers capable of discharging firefighting foam on ordinary combustible fires.
D. Industrial foam pumpers are built according to NFPA 11C and NFPA 1901.
B.
133
When positioning an apparatus for protecting a structure threatened by a wild land fire, which is false?
A. Park on roadway
B. Park on the leeward side of the structure.
C. Keep cab doors closed and windows rolled up.
D. Place the apparatus air conditioning mood in recirculation mode.
A.
134
Pumps are hydrostatically tested at 250PSI for ___ Minutes
3
135
the reaction of the pump which gradually increases in cross-sectional areas as it nears the discharge outlet of the pump is the ___?
Volute
136
When more than one emergency vehicle is responding along the same route, units should travel at least ____ to ____ feet apart.
300 to 500
137
A conventional power take off unit limits the capacity of the pump to about ____ GPM
500
138
which statement bellow is incorrect?
A. The first statement is learning to drive safely is to develop a safety conscious attitude.
B. It's important that the D.O. remain calm and drive in s safe manner.
C. If a F.F. rides on the tailboard he must use a safety bar.
D. the area in which hose loading is being performed must be closed to vehicle traffic.
C.
139
A tank fill ine should be provided from the discharge side of the pump allowing?
A. The tank to be filled without making any additional connections when the pump is being supplied by an external source.
B. A means of replenishing the water carried in the tank
C. For circulation of water through the pump to prevent overheating when no lines are flowing.
D. All of tje above.
D
140
Concerning the foam proportioning equipment test, which of the following is true.
A. Annual testing required.
B. Semi-annual testing is required.
C. Quarterly testing is required.
D. No time frame for testing required, however, D.O. must be able to perform the test.
D.
141
To facilitate proper placement of pumping and aerial apparatus, you must decide to use the inside/outside method of of apparatus placement. If the building is less than ___ stories tall, engine companies should park closest to the building and aerial pieces on the outside.
5
142
A fire apparatus pump is able to deliver ___% of its capacity at a 15 foot lift.
70
143
True or false.
Emergency vehicles are generally exempt from laws that require vehicles to stop for school buses that are flashing signal lights.
False
144
What is the pump discharge pressure when supplying a ground monitor using a 500 GPM fog nozzle with 100 PSI Nozzle pressure, supplied with 2 2-1/2 inch hose lines each 250 ft in length. (using long formula)
162.5 PSI
145
___-___ GPM is the max flow recommended for one line of 2-1/2 inch hose.
250-300
146
On a solid stream nozzle, ___ PSI. nozzle pressure is considered to be standard on handlines, while ___ PSI nozzle pressure is considered to be standard on master streams.
50, 80
147
which of the following is a correct statement.
A. Positive pressure are measured in pounds per square inch.
B. Negative pressure is measure in inches of mercury.
C. Any pressure less than atmospheric pressure is referred to as a vacuum.
D. All are correct.
D.
148
One cubic foot of water contains ___ cubic inches of water.
835
149
Find the desired pump pressure when supplying a 2-1/2 inch hoseline with a 1 inch tip with 50 PSI nozzle pressure, laid up to the third floor. the supply line is 250 feet long. (use rule of thumb)
80 PSI
150
Building and fire codes require wet systems with booster fire pumps built in for structures over how many floors?
5
151
At a fire, 6 sprinkler heads have opened. they are operating at 30 PSI. what is the total discharge?
180GPM
152
In fire hydraulics, ____ is that part of the total pressure that is used to overcome friction while forcing water through a hose
Friction loss
153
Ordinary hose sinuosity (zig-zagging) will add an additional ___ % friction loss.
6
154
Pressure of one pound per square inch will raise a column of water how many feet?
2.301
155
If a pumper is connected to a hydrant 200 feet from the standpipe siamese, and two 1-1/2 hand lines are operating on the 8th floor, the pumping operator should maintain ___ PSI engine pressure.
150
156
If 250 gpm is flowing through a hose line, and the pressure is increased while the nozzle opening is reduced so that 250 gpm remains flowing, the friction loss will?
Increase
157
there shall be an OS&Y valve located between the fire Dept. siamese connection and the standpipe riser.
There is a one way checkvalve positioned in the system to keep contaminated water from entering the main system.
```
Which statement is true?
A. Both true
B. 1st true
C. Both False
D. 2nd true
```
D.
158
If the discharge from a 1-1/4 tip 300 gallons per minute, what most nearly is the nozzle pressure?
42 PSI
159
There are three containers filled with water, the 1st container is 1 square inch at the base and 3 feet high. The 2nd container is 3 square inches at the base and is one foot high. The 3rd container is 9 square inches at the base and is four inches high. which container has the heaviest total weight?
1st container
160
Mercury is how many times heavier than water?
13.6
161
What is the pump discharge pressure with a layout using 200 feet of 2-1/2 hose wyed into 2 1-1/2 hose lines, each 100 feet long with fog nozzles discharging 100 gpm at 100 psi nozzle pressure? (rule of thumb)
148 psi
162
What will be the loss due to friction in a single line of 3 inch hose with 2-1.2 couplings, 400 feet in length, carrying 300 gpm?
34 PSI
163
Rounding off to the nearest hundredths, determine the area of a circle whose diameter is 10 inches.
153.93 square inches
164
When relay pumping, the supplying pumper should supply ___ pounds plus friction loss, but in no case should engine pressure exceed ___ PSI
20, 250
165
1 gallon of water = ___ cubic inches
231
166
For a given velocity of flow, the friction loss per hose is approximately the same no matter what the pressure on the water may be.
Friction Loss is determined by the speed or velocity of the water through the fire hose.
is each statement true or false?
Both False
167
Which of the following is true?
A. Flow pressure- pressure at a discharge opening while water is flowing
B. Atmospheric pressure- pressure remaining at the source while water is flowing
C. Static pressure- weight of air surrounding us and at sea level is 14.7 lbs per square inch
D. Residual pressure- Pressure of water when motionless or no hindering forces are affecting it as long as it is not moving.
A.
168
When the compound gauge indicates 15 inches of vacuum, to what height will water rise in a suction hose?
21 feet
169
In the same size hose friction loss varies approximately ___
inversely as the square of the velocity of flow
170
If 50 psi nozzle pressure is being supplied to a 1-1/8 nozzle tip on a 2-1/2 handline what is the nozzle reaction?
100 pounds
171
If a circular tank 12 feet in diameter and 15 feet tall is 3/4 full of water and water is then removed at 500 gpm, how long would it take before the tank is completely empty?
19 min
172
E1 is supplyinh E2 with a single hoseline 2-1/2 hose 600 feet in length. E2 is supplying 2 2-1/2 handlines each 150 feet in lenght, using 7/8 inch tips with 50 PSI nozzle pressure and discharging 150 gpm. what is the pump discharge pressure from E1
146 PSI
173
Sprinkler and standpipe systems are identified by?
Circular or rectangular plates.
174
Using rule of thumb, what is the friction loss in a single 2-1/2 hoseline 300 feet in length with a 1 inch tip operating at 50 PSI?
30 PSI
175
What is the friction loss in 450 feet of 2-1/2 hose when flowing 250 GPM?
56 PSI
176
What is the nozzle reaction in pounds from a 1 inch nozzle discharging a stream at 80 PSI nozzle pressure?
120 pounds.
177
A 2-1/2 hose line with no nozzle attached (open butt) is flowing at 25 psi, how many GPM is being discharged?
835
178
when the main shut-off valve on a sprinkler system is closed the water pumped into the sprinkler siamese will ___
by-pass the valve and reach the heads
179
for standpipe evolutions, if the pumper is more than 100 feet from the fire Dept. siamese connection on a building, an additional ___ PSI must be added for each 100 feet of additional hose
10
180
true or false
Pressure is simply force per unit area and is expressed in pounds per square inch and or pounds per square foot.
true
181
theres a limit to the speed at which the stream of water can travel through a hose line. If the speed is increased beyond these limits, the friction loss becomes so great that the entire stream is agitated by resistance, this turbulence is called?
critical velocity
182
When a sprinkler system is being charged, a reading of ___ pounds of pressure should be maintained at the discharge gauge.
150
183
What is the discharge from 10 sprinkler heads in 30 minutes if they're operating at 30 PSI?
9,000 gallons
184
What is the discharge in GPM from a 1-1/4 tip with 50 PSI nozzle pressure?
327
185
Stand pipe systems are rarely built to withstand more that ___ PSI.
225
