KLETC TEST 8 – Questions With Accurate Solutions
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Terms in this set (246)
Fundamentals of Emergency Vehicle ● Driver
Operation 16.02 ● Machine
● Environment
1 Identify the three elements of the
driver's triangle.
2 Identify the most critical element of ● The driver
the driver's triangle. ● Over 80% of all accidents are caused by driver error
● Lack of knowledge, panic, inattention to driving
skills.
,3 Identify the two types of vision. Central Vision: What you see when you look straight
ahead at an object; it allows person to see things
clear/sharp.
Peripheral Vision: Ability to detect objects on either
side of the line of focused vision; a person with
normal vision can detect objects that are
approximately 90 degrees to either side of their
focused vision.
4 Define the effects on a driver's ● As speed increases, peripheral vision decreases.
peripheral vision as the speed of a ● 40 mph = 120 degrees
vehicle increases. ● 60 mph = 60 degrees
● 80 mph = 30 degrees
5 Identify the motor skills used for ● Stress may affect driver's fine motor control skills
driving which are affected by stress. ● Fine motor control skills used to steer and brake.
● Stress of an emergency maneuver, hot call, pursuit
can affect fine motor control skills too.
,6 Define how an anti-lock braking ● ABS is part of the vehicle's braking system that
system works. automatically controls braking pressure to prevent the
controlled wheel(s) from locking up during braking.
● Most anti-lock systems also enable the vehicle to
stop in a shorter distance, particularly on wet or
slippery road surfaces.
● Wheel speed sensors detect wheel lock and send
signals to brake pressure modulator telling it to
reduce brake pressure which allows the wheels to
turn.
● ABS then re-applies braking pressure to maintain
maximum
● Pressure regulating pumps the brakes in the same
manner a driver would only much faster.
● Pulsating occurs as a result of the brake fluid
pressure changes in the brake system when ABS is
activated.
● Current anti-lock systems can release and reapply
the brakes as many as 15 times per second.
● Driver should now pump the brakes because that
action may defeat the anti-lock system which could
lock the wheels and cause a skid.
Major Components:
Wheel Speed Sensors: Measure wheel speed, and
then transmit this information to the electronic control
unit (ECU).
Electronic Control Unit (ECU): Contains the computer
functions, sensor signal processing circuits, and
outputs signals to the various ABS valves and
components, and the failure detection logic.
Brake Pressure Modulator: Reduces, holds, and
restores pressure to one or more brakes, independent
of the brake pedal effort applied by the driver.
, 7 Identify the recommended defensive ● The edge of the road, lane markings, or traffic signs
driving techniques a driver should use may not be visible during a snowstorm.
when driving on snow and/or ice. ● Stopping distance on ice/snow increases
exponentially with increased speed.
● Brakes should be properly adjusted so they pull
6+evenly.
● Wet roads with ice and freezing rain are the most
treacherous of all driving conditions.
● Bridges/shaded roadways freeze first.
● Do not make any sudden moves with the steering
wheel, brakes, or accelerator.
● Slow down in advance of intersections, curves, and
downgrades, sooner than normally.
● Keep at least a four-second following distance.
● Chains on rear wheels, drive with them until the road
surface is appreciably clear of ice and snow.
● When driving through deep snow, shift into a lower
gear before entering the snow and attempt to keep
the car moving through the snow.
8 Define the minimum depth of water ● As little as 1/16th of an inch of water can cause
that may cause a vehicle to hydroplaning.
hydroplane. ● Can occur as soon as the water depth exceed the
thread depth.
9 Identify the best driving surface. Concrete: provides the best adhesion to the road by
the vehicle; can glaze over quickly in freezing
conditions; it's heavy and settles more than other
surfaces.
Add to calendar
Play your way to mastery with fun games
Match Blocks Charms NEW
Terms in this set (246)
Fundamentals of Emergency Vehicle ● Driver
Operation 16.02 ● Machine
● Environment
1 Identify the three elements of the
driver's triangle.
2 Identify the most critical element of ● The driver
the driver's triangle. ● Over 80% of all accidents are caused by driver error
● Lack of knowledge, panic, inattention to driving
skills.
,3 Identify the two types of vision. Central Vision: What you see when you look straight
ahead at an object; it allows person to see things
clear/sharp.
Peripheral Vision: Ability to detect objects on either
side of the line of focused vision; a person with
normal vision can detect objects that are
approximately 90 degrees to either side of their
focused vision.
4 Define the effects on a driver's ● As speed increases, peripheral vision decreases.
peripheral vision as the speed of a ● 40 mph = 120 degrees
vehicle increases. ● 60 mph = 60 degrees
● 80 mph = 30 degrees
5 Identify the motor skills used for ● Stress may affect driver's fine motor control skills
driving which are affected by stress. ● Fine motor control skills used to steer and brake.
● Stress of an emergency maneuver, hot call, pursuit
can affect fine motor control skills too.
,6 Define how an anti-lock braking ● ABS is part of the vehicle's braking system that
system works. automatically controls braking pressure to prevent the
controlled wheel(s) from locking up during braking.
● Most anti-lock systems also enable the vehicle to
stop in a shorter distance, particularly on wet or
slippery road surfaces.
● Wheel speed sensors detect wheel lock and send
signals to brake pressure modulator telling it to
reduce brake pressure which allows the wheels to
turn.
● ABS then re-applies braking pressure to maintain
maximum
● Pressure regulating pumps the brakes in the same
manner a driver would only much faster.
● Pulsating occurs as a result of the brake fluid
pressure changes in the brake system when ABS is
activated.
● Current anti-lock systems can release and reapply
the brakes as many as 15 times per second.
● Driver should now pump the brakes because that
action may defeat the anti-lock system which could
lock the wheels and cause a skid.
Major Components:
Wheel Speed Sensors: Measure wheel speed, and
then transmit this information to the electronic control
unit (ECU).
Electronic Control Unit (ECU): Contains the computer
functions, sensor signal processing circuits, and
outputs signals to the various ABS valves and
components, and the failure detection logic.
Brake Pressure Modulator: Reduces, holds, and
restores pressure to one or more brakes, independent
of the brake pedal effort applied by the driver.
, 7 Identify the recommended defensive ● The edge of the road, lane markings, or traffic signs
driving techniques a driver should use may not be visible during a snowstorm.
when driving on snow and/or ice. ● Stopping distance on ice/snow increases
exponentially with increased speed.
● Brakes should be properly adjusted so they pull
6+evenly.
● Wet roads with ice and freezing rain are the most
treacherous of all driving conditions.
● Bridges/shaded roadways freeze first.
● Do not make any sudden moves with the steering
wheel, brakes, or accelerator.
● Slow down in advance of intersections, curves, and
downgrades, sooner than normally.
● Keep at least a four-second following distance.
● Chains on rear wheels, drive with them until the road
surface is appreciably clear of ice and snow.
● When driving through deep snow, shift into a lower
gear before entering the snow and attempt to keep
the car moving through the snow.
8 Define the minimum depth of water ● As little as 1/16th of an inch of water can cause
that may cause a vehicle to hydroplaning.
hydroplane. ● Can occur as soon as the water depth exceed the
thread depth.
9 Identify the best driving surface. Concrete: provides the best adhesion to the road by
the vehicle; can glaze over quickly in freezing
conditions; it's heavy and settles more than other
surfaces.
