Driving Safely

Question 1

How much tread do you need on front tires to operate safely?

Answer 1

4/32” aka 1/8”

Question 2

How much tread do you need on tires other than front tires?

Answer 2

2/32” aka 1/16”

Question 3

Where are regrooved, recapped, or retreaded tires not allowed to be used?

Answer 3

On the front wheels of a bus

Question 4

Steering wheel play of more than ______ degrees or _______inches at the rim of a 20” steering wheel can make it hard to steer

Answer 4

10. 2.

Question 5

How many leaf springs can be broken before the vehicle has to be put OOS?

Answer 5

One fourth or more of the leaves in any spring assembly

Question 6

Can a vehicle be operated with a main leaf spring broken?

Answer 6

No.

Question 7

Can a vehicle be operated if a leaf spring is missing ?

Answer 7

No

Question 8

What are the emergency equipment required to be carried?

Answer 8

Fire extinguisher
Spare fuses
Warning devices (3 red triangles)

Question 9

Air pressure should build from ____ to ____psi within _____ mins

Answer 9

50-90 3 mins

Question 10

Air pressure governor cut out is usually _____ to ______ psi

Answer 10

120-140 psi

Question 11

How often must drivers of trucks transporting cargo inspect it?

Answer 11

Within the first 50 miles, and every 150 miles or every 3 hours. Whichever comes first

Question 12

How do you test hydraulic brakes for a leak?

Answer 12

Pump pedal 3 times and apply firm pressure for 5 seconds. Pedal should not move.

Question 13

How do you test parking brake?

Answer 13

Seat belt.
Set brake
Put vehicle into low gear pull against brake

Question 14

How do you test service brake stopping action?

Answer 14

Go 5 mph
Push pedal firmly
Look for pulling or problems

Question 15

What are the two special conditions where you should downshift?

Answer 15

Before starting downhill

Before entering a curve

Question 16

Retarders keep you from skidding when the road is slippery?

True or false?

Answer 16

False

Question 17

What are two ways of knowing when to shift?

Answer 17

Engine speed

Road speed

Question 18

How far ahead should a driver be looking? (Time)

Answer 18

12-15 seconds ahead

Question 19

How far ahead should a driver look? (Distance)

Answer 19

Low speeds- one block

High speeds- quarter mile

Question 20

What are three good rules for using turn signals ?

Answer 20

Signal early
Signal continuously
Cancel your signal

Question 21

How can you warn drivers behind you that you’ll need to slow down?

Answer 21

A few light taps on the brake pedal, enough to flash the brake lights

Question 22

Should you signal drivers when it’s safe to pass you?

Answer 22

No

Question 23

Should you tap the horn lightly or flash your lights when passing ?

Answer 23

Yes, do this so they know you’re there. 2.5.2

Question 24

How long do you have to put out your emergency warning devices if you must stop on a road or shoulder?

Answer 24

Within 10 mins

Question 25

If you stop on a one way or divided highway, where should you place your warning devices?

Answer 25

10ft, 100ft, And 200ft Torward the approaching traffic

Question 26

If you stop on a 2 lane rd with traffic on both directions, where should you place warning devices?

Answer 26

Within 10ft of front or rear corners 100 ft behind and 100ft ahead of the vehicle

Question 27

If you are stopped beyond a hill, where drivers can’t see the vehicle within 500ft, where should the warning devices be placed?

Answer 27

Move rearmost triangle to a point back down the road so warning is provided

Question 28

What is perception distance?

Answer 28

The distance your vehicle travels from the time you see a hazard until your brain recognizes it

Question 29

What is reaction distance?

Answer 29

The distance you continue to travel before you physically hit the brakes

Question 30

What is the average driver reaction time?

Answer 30

3/4 - 1 second

Question 31

What is the average driver reaction distance traveled at 55 mph?

Answer 31

61 ft

Question 32

What is braking distance?

Answer 32

The distance your vehicle will travel in ideal conditions while you are braking

Question 33

At 55 mph on dry pavement with good brakes, what is the braking distance?

Answer 33

216 ft

Question 34

What is total stopping distance?

Answer 34

The total minimum distance your vehicle will travel

Question 35

Total stopping distance at 55 mph?

Answer 35

419 feet

Question 36

Doubling speed 20-40 makes stopping distance ___times longer

Answer 36

4 times

Question 37

Triple speed from 20-60 stopping distance is ___ times greater.

Answer 37

Nine times

Question 38

T or F Empty trucks stop sooner than fully loaded trucks

Answer 38

False

Question 39

How much should you reduce speed on a wet road?

Answer 39

By one third

Question 40

How much should you reduce speed on packed snow?

Answer 40

By half or more

Question 41

How much should you reduce speed if the road surface is icy?

Answer 41

To a crawl

Question 42

What should you do if hydroplaning?

Answer 42

Release accelerator and push in clutch

Question 43

What is the safest speed when driving in heavy traffic?

Answer 43

The speed of other vehicles

Question 44

How much space should you keep in front of you at speeds below 40 mph?

Answer 44

One second for every 10’ of vehicle length. Over 40 add one Sec

Question 45

What is something you can do when being tailgated to reduce chances of a crash?

Answer 45

Increase following distance

Question 46

Where can strong winds be bad?

Answer 46

Coming out of tunnels

Question 47

When do you start turning on a left turn?

Answer 47

When you reach the center of the intersection

Question 48

What does the symbol red triangle with orange center mean?

Answer 48

Slow moving vehicle

Question 49

What should you do when someone coming at you has their brights on?

Answer 49

Look at the right side of the road

Question 50

How far ahead can you see with your low beams?

Answer 50

250 ft

Question 51

How far ahead can you see with you high beams?

Answer 51

350-500ft

Question 52

What distance should you switch off your high beams

Answer 52

500 ft

Question 53

When driving in hot weather how often should you inspect your tires?

Answer 53

Every two hours or every 100 miles

Question 54

How should you brake when going down a hill?

Answer 54

Brake till you get 5mph below safe speed, release brakes Brake again when at your safe speed

Question 55

How long does it take a tractor trailer to clear a double RR track?

Answer 55

14 seconds

Question 56

Should you apply brakes when turning?

Answer 56

No