DE Unit 5

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the minimum legal tread depth for the tires on your vehicle is

1/16

During a rainfall, roads are slickest

10-15 minutes

At 60 mph, on dry pavement, the vehicle-braking distance for a 3,000-pound vehicle to come to a stop is

160 feet

A car moving at 60 mph will take how much time to come to a complete stop?

4-6 seconds

The percentage of traffic fatalities that occurs between 9 P.M. and 6 A.M. is

50 percent

Human-reaction distance generally adds how much to total braking distance?

66 feet

One reason an engine can fail is

a broken timing gear. a malfunctioning fuel system. a malfunctioning electrical system. all of the above

Before you negotiate a curve, you should look for

a sign with the maximum safe speed limit.

antilock braking system

abs

sticking together

adhesion

If you are in a collision, you should NOT

admit fault. sign any form except those given to you by police. accuse anyone of causing the collision. all of above

Engine fires are usually caused by

an electrical problem.

a blowout occurs when

an explosion of a tire while a vehicle is in motion.

Your ability to see is diminished at night and just as much

at sunrise

You usually find a runoff area

at the bottom of a long hill.

roads built higher on the outside than on the inside

banked roads

a skid caused by a tire suddenly going flat

blowout skid

When your vehicle skids, you should not

brake

a skid caused by the brakes being applied too hard

breaking skid

when all four wheels lose traction in a turn simultaneously

cornering skid

roads built higher in the center than at either edge

crowned roads

When your vehicle skids, you lose control of its

direction & speed

When driving downhill in a vehicle with a manual transmission, you should

downshift

When driving uphill in a vehicle with a manual transmission, you should

drive at a safe speed

Going up and down hills does not affect driving difficulty.

false

If you cannot see well in heavy sleet or snow while driving, the best thing to do is turn on your high beams.

false

If you suffer total steering failure, you should use the foot brake, not the parking brake, to stop.

false

If your car is fast enough, you should try to out drive a tornado rather than stopping.

false

Rain and snow only decrease your ability to see ahead.

false

The amount of air pressure in your tires does not affect traction.

false

When parking in a hailstorm, you should angle your car so that the hail hits the back of your car.

false

While waiting for help to arrive, it is okay to sit in your vehicle while it idles, or stand in front of it or behind it.

false

You do not need to slow down if you cannot keep a safe distance between your vehicle and another, as long as you think you can stop in time.

false

You do not need to turn off your high beams if you know you will quickly pass an approaching car.

false

The number one weather-related killer in the United States is/are

floods

Doubling your speed multiplies your braking distance by

four times

the force between two surfaces that resists the movement of one surface across the other

friction

In wet conditions, if you hydroplane, you should

gently pump the brake pedal if you need to brake.

The natural laws include the law of

gravity

the natural force at work on your vehicle on hills is

gravity

the ability to change the vehicle speed or direction

grip

While driving during dusk and dawn you should use your

headlights

Glare is caused when the sun

hits your windshield

the distance traveled from the time your eyes see a hazard to the time your brain recognizes it

human-perception time

When a vehicle's tires completely lose contact with the road and move on a thin film of water, it is called

hydroplanning

What reduces traction even more than rain?

ice

states that objects at rest do not move unless some force acts on them

inertia

To maintain or improve traction while driving, you should

inflate them correctly. buy the proper tires for your vehicle. ensure the suspension is working properly. all of the above

energy of motion

kinetic energy

One of the best ways to help yourself in difficult situations is to

know what to do in an emergency situation.

A personal factor that can control to drive more safely would be

knowlegde

In addition to visibility issues, a possible health issue while driving in the mountains is

lack of oxygen

You can raise a car's center of gravity by

loading a roof rack with items

When driving in fog, you should drive with your

low beams on

combination of object's weight and speed

momentum

Smaller cars with lower centers of gravity are

more stable than cars with higher centers of gravity

it is acceptable to use your high beams

on very dark roads with no traffic around.

the best way to reduce risk in icy conditions is to

postpone driving until the weather clears.

a skid caused by excess acceleration

power skid

If you experience sudden brake failure while driving,

rapidly pump the brake pedal.

When dealing with glare, you should

reduce your speed

High beams should not be used in bad weather because they

reflect light back at you.

If you live in a snowy area, you should keep the following item/s in your car:

shovel jumper cables windshield scraper all of the above

when your vehicle careens wildly across the road

skid

When driving on a crowned road, you can gain more control of your vehicle by

slowing down

Vehicle fatality rates are highest for

small pickup trucks and small utility vehicles.

A visibility problem specific to driving in the mountains would be

steep grades

In wet, rainy conditions, when entering a turn or curve, you should avoid sudden

stops acceleration starts all of the above

In addition to weather and the road surface, the quality of what can have an effect on traction?

suspension

Whether you need to speed up or slow down is determined by

the location of other vehicles in traffic

The reinforced glass on your vehicle made to withstand driving and pelting objects is

the windshields

Braking capability depends on

tire pressure and suspension system wind speed and the slope of road. brake alignment and pad material. all the above

To employ the threshold/squeeze braking method, you apply the brake pedal with

toes

the distance it takes to stop a vehicle

total stopping distance

The single most important factor in maintaining vehicle control is

traction

A vehicle skid usually means you

tried to change speed and/or direction too quickly

A banked curve works with the force of gravity to help you stay on the road through the turn.

true

Accelerating or braking can be better choices than steering to avoid a collision.

true

An easy way to minimize glare is to see that your windshield is clean.

true

Centrifugal force pushes you in the direction opposite to the way you are turning.

true

Driving up a long, steep hill can cause your engine to overheat.

true

Even though a flooded area appears shallow enough to cross, you should not try to cross it.

true

If both headlights fail at the same time, you should try switching to high beams.

true

If you cannot avoid a collision, you should steer so that you sideswipe an object instead of hitting it head-on.

true

If you get stuck in the snow, you may be able to free your vehicle by "rocking" it.

true

If your vehicle breaks down and you cannot call for help, you should raise the hood or turn on your flashers.

true

The three major highway conditions that require you to adjust speed are changes in visibility, traction, and space.

true

Wet roads or excessive speed can cause your vehicle to go into a skid.

true

When driving in rain and snow you should keep your low beams on at all times.

true

When in a skid, you might need to make several steering corrections to get the car to go where you want it.

true

You should avoid looking in the headlights of oncoming vehicles.

true

When you know you will be driving in the mountains, you should

try to find out about current weather conditions.

If your accelerator sticks, you should not

try to unstick the pedal until after you pull off the road.

When approaching a large vehicle on a slush-covered roadway, you should

turn on your windshield washers before you meet.

In the case of flooding, cars can easily be carried away by water.

two feet of water

If you get caught driving in a hailstorm, pull to safety

under an overpass

the distance the vehicle travels once the brakes have been applied

vehicle braking distance

An environmental factor that can affect driving includes

weather. lighting. road conditions. all of the above

Weather that causes wide areas of glare occurs during

winter

If you are in a collision, exchange information such as

your driver's license information.


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