driving theory Flashcards
what should you see when passing an 18-wheeler?
the pavement in front of vehicle in rearview and outside mirrors
what is the biggest no-zone on a truck?
the right blind spot
Three parts of the highway transportation system
roadway users, roadways, vehicles
operating costs
money for fuel, oil, tires, oil changes
fixed costs
car price, fees, insurance
how many zones in car
6
nystagmus gaze
wobbly/twitchy eyes of the impaired
at least how full should your fuel gauge be during cold weather?
half full
what is neutral shift
wheels roll w/o power
tachometer
rpm
Antilock braking system
keeps wheels from locking if you brake forcefully
when steering, your target should be
aligned with the center of the steering wheel
braking point
where brakes begin to work and slow the vehicle
SMOG acronym
See -Mirrors -Over Shoulder- Go. For passing
IPDE
identify predict decide execute
what defines an open zone?
line of sight is free, can travel to zone
In what order should you search your ranges?
target area (furthest), 12-15 second range, 4-6 second range (closest)
Field of vision
what you see looking straight. 90 degrees to each side, 180 total.
Central vison
the middle 10 degree part of your central vision. The clearest
peripheral vision
field of vision - central vision
following distance
4 seconds (5 on highway)
space cushion
area of space around a vehicle
convex mirrors in your outside mirrors
get rid of your blindspots
hand upward
right turn
hand straight out
left turn
hand down
slow/stop
when turning at intersections, accelerate
halfway through the turn
lane position 1
center of lane
lane position 2
left side of lane
lane position 3
right side of lane
when doing a turnabout, you should have a
10 second visibility both sides
in angle parking, you should have a minimum of _____ from the parked cars
6 feet
what % of crashes happen in intersections?
50%
what is a safety stop
at intersection: front bumper even with curb line or cars parked on cross street
how long should you wait before continuing after a recently stopped car (intersection)
2 seconds
doghouse signal light
for high traffic. 5 lights: green and yellow left turn arrow
delayed green light
one side has green light, the other has red. allows traffic to flow more smoothly, make a move before oncoming traffic gets a green
railroad sign distance from tracks
cities: 250 ft. rural: 750 ft.
how big should the tire footprint (amount of tire that touches ground when properly inflated) be?
about size of adult hand
the faster and heavier the car, the more
momentum
check tire pressure before driving when the weather is
cold
shock absorbers
stop tires from bouncing
when is there a perfect balance of weight distribution on a car?
when the car is immobile
center of gravity
center around which weight is evenly distributed
the closer the center of gravity of the car to the ground, the more
stable the car is
pitch
tilting motion front to back
when you accelerate, the weight goes on the
back tires
when you brake, the weight goes on the
front tires
yaw
rotation of car when traction lost
the higher the speed/momentum, the more ____________ is consumed
traction
crowned road
tall in the middle
banked road
tall on edges or one edge
total stopping distance
distance you travel from when you first perceive the hazard to until you reach a full stop
perception time
the time it takes you to identify, predict, and decide.
the average perception time for an alert driver is
3/4 of a second
reaction time
time it takes to apply brake
braking distance
distance traveled from brake applied to full stop reached. proportional to square of speed
an example active restraint device
seatbelt (you must engage)
an example passive restraint device
airbag (automatic)
when passing, rejoin your lane when you can see
one headlight of the car you passed in the rearview mirror