Driver/Operator Exam 3 Questions With
Complete Solutions
What is the elevation pressure when the nozzle is on the 12th floor?
55 psi (379 kPa)
Which of the following does NOT influence pump calculations?
Pump type
Which of the following is an example of an interior functional control switch?
Map lights
Which of the following formulas is used to determine nozzle reaction in fog
nozzles?
NR = 0.0504 × gpm × ÖNP
When adding any fluids to a fire apparatus, the driver/operator should be sure:
to document the amount of fluid added on the fire apparatus inspection form
The ____________ system keeps a vehicle's axles in place and holds up the fire
apparatus and its entire load.
suspension
When inspecting the fire apparatus, which section focuses on inspecting the
generators, fans, hydraulic rescue tools, and hand tools?
General tools/equipment inspection
When backing a fire apparatus, the driver/operator should immediately stop the
apparatus when:
the driver/operator loses sight of the spotter
What is the net pump discharge pressure (NPDPpps) if you are pumping a pump
discharge pressure of 170 psi (1190 kPa) and you have 50 psi (350 kPa) of
pressure coming in from a hydrant?
120 psi (840 kPa)
When inspecting the fire apparatus, which fire apparatus section would focus on
inspecting the fluid levels, battery charge, cooling system, motor components
such as belts, charging system, and drive train elements?
Engine compartment inspection
As a general rule, a driver/operator should not exceed a pump discharge pressure
of ________ when supplying water to a standpipe system.
200 psi (1378 kPa)
Which of the following delivers operational power to the fire apparatus chassis?
Ignition switch
Determine the pump discharge pressure for supplying a prepiped elevated master
stream through 200 ft (60 m) of 4-inch (102-mm) hose, where the aerial is raised to
80 ft (24 m) and has a 2-inch (50-mm) tip rated at 80 psi (550 kPa).
190 psi (1310 kPa)
Ten degrees of play is equivalent to ____ inches of movement at the rim of a 20-
inch steering wheel.
2
1|Page
,How would a driver/operator disconnect all electrical power to a fire apparatus to
prevent discharge while it is not in use?
Use the battery selector switch
While driving a fire apparatus around an emergency scene, the driver/operator
may be forced to maneuver the fire apparatus in a tight area and around
obstacles that are hanging down, such as trees or building signs. NFPA 1002
requires the driver/operator to successfully complete a ___________________
exercise to simulate this challenge.
diminishing clearance
What term refers to the document that identifies the results of previous
inspections, including who performed the inspections and when?
Apparatus inspection form
Determine how many additional lines can be opened when the hydrant static
pressure on the pump intake gauge is 80 psi (552 kPa), the driver flows several
attack lines with a total flow of 300 gallons/min (1135 L/min), and the residual
pressure drops to 70 psi (483 kPa).
2
To properly maintain a fire apparatus, the driver/operator should use
_____________ procedures and the manufacturer's recommendations as
references.
department
What term describes the evaluation of fire apparatus and its equipment that
ensures its safe operation?
Fire apparatus inspection
While responding to an emergency, the driver/operator may accidentally pass an
intended turn, forcing him or her to turn around. NFPA 1002 requires the
driver/operator to successfully complete a __________________ exercise to
simulate this challenge.
confined space turnaround
How long should a fire apparatus be at idle prior to shutting down the engine?
3-5 minutes
________ is pressure lost when the nozzle is above the pump.
Elevation loss
If the fire apparatus engine does not start within 30 seconds after the starter has
been engaged, release the starter switch and allow the starter motor to cool for
______________ before attempting to start it again.
2 minutes
Parking brakes should engage whenever the rear brake system pressure drops
below:
40 psi (276 kPa).
Using the split flow method, calculate the friction loss for the following example:
A pumper is supplying 1200 gallons/min (4500 L/min) through three 2½-inch (64-
mm) lines that are 300 ft (90 m) long to a Siamese connection. What is the friction
loss to the Siamese connection?
96 psi (640 kPa)
2|Page
,Lakes and streams require pulling a draft and are considered _________ water
sources.
static
What is the term for opening a discharge just enough to deliver the desired
pressure when operating multiple lines with different required pressures?
Gating the valve
Often, fire apparatus inspections are broken into sections. According to the text,
what is the first section that should be completed?
Exterior inspection
When conducting the fire apparatus air brake system warning light and buzzer
test, an audible alarm should sound before the pressure drops to less than:
60 psi (414 kPa)
The two fundamental formulas for determining total pressure loss are ________
and _________.
PDP = NP + FL; FL = C × Q2 × L + AL + EP
When backing a fire apparatus, the driver/operator should always use a(n)
_____________ if available.
spotter
The pump inspection includes all of the following EXCEPT:
nozzles
In accordance with NFPA 1901, a fire apparatus with a completely discharged air
system must be able to move within _____________ of start-up.
1 minute
For most fire departments, the largest number of fire apparatus accidents is
related to:
backing the apparatus
What are the dimensions of the boundary used for the confined space turnaround
exercise?
50 ft × 100 ft (15 m × 31 m)
In order to properly maneuver the fire apparatus around objects at the scene,
NFPA 1002 requires the driver/operator to successfully perform a
___________________ exercise that is designed to simulate these conditions.
serpentine maneuver
________ is pressure gained when the nozzle is below the pump?
Elevation gain
What term describes a less-exact, user-friendly method of hydraulic calculations?
Fireground hydraulics
Which NFPA standard requires that the driver/operator of a fire apparatus NOT
move the apparatus until all persons on the vehicle are seated and secured with
seat belts in approved riding positions?
NFPA 1500
Friction loss is measured in:
psi or kPa
Which of the following statements is true regarding adding fuel to equipment?
If the engine is hot, allow it to cool before fueling the equipment
3|Page
, Using the subtract 10 method, calculate the pump discharge pressure for 300 ft
(90 m) of 2½-inch (64-mm) hose with a 1-inch (25-mm) smooth-bore tip flowing
200 gallons/min (750 L/min) with a nozzle pressure of 50 psi (345 kPa).
74 psi (510 kPa)
Which of the following formulas is used to determine nozzle reaction in smooth-
bore nozzles?
NR = 1.5 × d² × NP
A 360-degree inspection refers to a(n):
complete walk-around inspection of the unit before you go on a response
To determine the head pressure, divide the height of the column in feet by
_______ (metric = height in meters divided by ______).
2.304; 9.812
Tires should have at least _______ inch of tread depth in every major groove.
⅛
The driver/operator must understand that a speedy response is achieved by
adhering to many guidelines including:
driving safely and efficiently.
Visually inspecting under the fire apparatus for any fresh oil, coolant, or other
fluid leaks, and checking for any damage to the apparatus body are conducted
during which section of the fire apparatus inspection?
Exterior inspection
When returning to the station from an emergency, the driver/operator operating
the fire apparatus should ___________________________ once the fire apparatus
is on the ramp in front of the station.
allow the engine to cool down as much as possible
When turning at an intersection, the greatest exposure to potential conflicts
occur while making a
Moving right turn
You are the driver of car A. You intend to turn left and have a solid green traffic
light. Where should you wait while yielding to oncoming traffic?
Wait behind the crossswalk with wheels straight
What 4 pieces of information do you need to gather while stopped and waiting to
turn at a traffic light?
Rear condition, gap to enter, path LFR, light change
You are the driver of car B and your traffic light is a red arrow. A right turn on this
light is
Allowed only after you stop, search, and yield to traffic and pedestrians
A flashing yellow arrow like the one pictured on the right means you are required
to do what?
Yield to oncoming traffic and pedestrians, then proceed only when clear
What is the best speed control option to use when approaching a stale green
traffic light?
Cover break
The point of no return is the place where you are no longer able to stop without
entering that space. How many seconds away from the front of your vehicle is the
point of no return?
4|Page
Complete Solutions
What is the elevation pressure when the nozzle is on the 12th floor?
55 psi (379 kPa)
Which of the following does NOT influence pump calculations?
Pump type
Which of the following is an example of an interior functional control switch?
Map lights
Which of the following formulas is used to determine nozzle reaction in fog
nozzles?
NR = 0.0504 × gpm × ÖNP
When adding any fluids to a fire apparatus, the driver/operator should be sure:
to document the amount of fluid added on the fire apparatus inspection form
The ____________ system keeps a vehicle's axles in place and holds up the fire
apparatus and its entire load.
suspension
When inspecting the fire apparatus, which section focuses on inspecting the
generators, fans, hydraulic rescue tools, and hand tools?
General tools/equipment inspection
When backing a fire apparatus, the driver/operator should immediately stop the
apparatus when:
the driver/operator loses sight of the spotter
What is the net pump discharge pressure (NPDPpps) if you are pumping a pump
discharge pressure of 170 psi (1190 kPa) and you have 50 psi (350 kPa) of
pressure coming in from a hydrant?
120 psi (840 kPa)
When inspecting the fire apparatus, which fire apparatus section would focus on
inspecting the fluid levels, battery charge, cooling system, motor components
such as belts, charging system, and drive train elements?
Engine compartment inspection
As a general rule, a driver/operator should not exceed a pump discharge pressure
of ________ when supplying water to a standpipe system.
200 psi (1378 kPa)
Which of the following delivers operational power to the fire apparatus chassis?
Ignition switch
Determine the pump discharge pressure for supplying a prepiped elevated master
stream through 200 ft (60 m) of 4-inch (102-mm) hose, where the aerial is raised to
80 ft (24 m) and has a 2-inch (50-mm) tip rated at 80 psi (550 kPa).
190 psi (1310 kPa)
Ten degrees of play is equivalent to ____ inches of movement at the rim of a 20-
inch steering wheel.
2
1|Page
,How would a driver/operator disconnect all electrical power to a fire apparatus to
prevent discharge while it is not in use?
Use the battery selector switch
While driving a fire apparatus around an emergency scene, the driver/operator
may be forced to maneuver the fire apparatus in a tight area and around
obstacles that are hanging down, such as trees or building signs. NFPA 1002
requires the driver/operator to successfully complete a ___________________
exercise to simulate this challenge.
diminishing clearance
What term refers to the document that identifies the results of previous
inspections, including who performed the inspections and when?
Apparatus inspection form
Determine how many additional lines can be opened when the hydrant static
pressure on the pump intake gauge is 80 psi (552 kPa), the driver flows several
attack lines with a total flow of 300 gallons/min (1135 L/min), and the residual
pressure drops to 70 psi (483 kPa).
2
To properly maintain a fire apparatus, the driver/operator should use
_____________ procedures and the manufacturer's recommendations as
references.
department
What term describes the evaluation of fire apparatus and its equipment that
ensures its safe operation?
Fire apparatus inspection
While responding to an emergency, the driver/operator may accidentally pass an
intended turn, forcing him or her to turn around. NFPA 1002 requires the
driver/operator to successfully complete a __________________ exercise to
simulate this challenge.
confined space turnaround
How long should a fire apparatus be at idle prior to shutting down the engine?
3-5 minutes
________ is pressure lost when the nozzle is above the pump.
Elevation loss
If the fire apparatus engine does not start within 30 seconds after the starter has
been engaged, release the starter switch and allow the starter motor to cool for
______________ before attempting to start it again.
2 minutes
Parking brakes should engage whenever the rear brake system pressure drops
below:
40 psi (276 kPa).
Using the split flow method, calculate the friction loss for the following example:
A pumper is supplying 1200 gallons/min (4500 L/min) through three 2½-inch (64-
mm) lines that are 300 ft (90 m) long to a Siamese connection. What is the friction
loss to the Siamese connection?
96 psi (640 kPa)
2|Page
,Lakes and streams require pulling a draft and are considered _________ water
sources.
static
What is the term for opening a discharge just enough to deliver the desired
pressure when operating multiple lines with different required pressures?
Gating the valve
Often, fire apparatus inspections are broken into sections. According to the text,
what is the first section that should be completed?
Exterior inspection
When conducting the fire apparatus air brake system warning light and buzzer
test, an audible alarm should sound before the pressure drops to less than:
60 psi (414 kPa)
The two fundamental formulas for determining total pressure loss are ________
and _________.
PDP = NP + FL; FL = C × Q2 × L + AL + EP
When backing a fire apparatus, the driver/operator should always use a(n)
_____________ if available.
spotter
The pump inspection includes all of the following EXCEPT:
nozzles
In accordance with NFPA 1901, a fire apparatus with a completely discharged air
system must be able to move within _____________ of start-up.
1 minute
For most fire departments, the largest number of fire apparatus accidents is
related to:
backing the apparatus
What are the dimensions of the boundary used for the confined space turnaround
exercise?
50 ft × 100 ft (15 m × 31 m)
In order to properly maneuver the fire apparatus around objects at the scene,
NFPA 1002 requires the driver/operator to successfully perform a
___________________ exercise that is designed to simulate these conditions.
serpentine maneuver
________ is pressure gained when the nozzle is below the pump?
Elevation gain
What term describes a less-exact, user-friendly method of hydraulic calculations?
Fireground hydraulics
Which NFPA standard requires that the driver/operator of a fire apparatus NOT
move the apparatus until all persons on the vehicle are seated and secured with
seat belts in approved riding positions?
NFPA 1500
Friction loss is measured in:
psi or kPa
Which of the following statements is true regarding adding fuel to equipment?
If the engine is hot, allow it to cool before fueling the equipment
3|Page
, Using the subtract 10 method, calculate the pump discharge pressure for 300 ft
(90 m) of 2½-inch (64-mm) hose with a 1-inch (25-mm) smooth-bore tip flowing
200 gallons/min (750 L/min) with a nozzle pressure of 50 psi (345 kPa).
74 psi (510 kPa)
Which of the following formulas is used to determine nozzle reaction in smooth-
bore nozzles?
NR = 1.5 × d² × NP
A 360-degree inspection refers to a(n):
complete walk-around inspection of the unit before you go on a response
To determine the head pressure, divide the height of the column in feet by
_______ (metric = height in meters divided by ______).
2.304; 9.812
Tires should have at least _______ inch of tread depth in every major groove.
⅛
The driver/operator must understand that a speedy response is achieved by
adhering to many guidelines including:
driving safely and efficiently.
Visually inspecting under the fire apparatus for any fresh oil, coolant, or other
fluid leaks, and checking for any damage to the apparatus body are conducted
during which section of the fire apparatus inspection?
Exterior inspection
When returning to the station from an emergency, the driver/operator operating
the fire apparatus should ___________________________ once the fire apparatus
is on the ramp in front of the station.
allow the engine to cool down as much as possible
When turning at an intersection, the greatest exposure to potential conflicts
occur while making a
Moving right turn
You are the driver of car A. You intend to turn left and have a solid green traffic
light. Where should you wait while yielding to oncoming traffic?
Wait behind the crossswalk with wheels straight
What 4 pieces of information do you need to gather while stopped and waiting to
turn at a traffic light?
Rear condition, gap to enter, path LFR, light change
You are the driver of car B and your traffic light is a red arrow. A right turn on this
light is
Allowed only after you stop, search, and yield to traffic and pedestrians
A flashing yellow arrow like the one pictured on the right means you are required
to do what?
Yield to oncoming traffic and pedestrians, then proceed only when clear
What is the best speed control option to use when approaching a stale green
traffic light?
Cover break
The point of no return is the place where you are no longer able to stop without
entering that space. How many seconds away from the front of your vehicle is the
point of no return?
4|Page
