TX CMV Handbook: General Knowledge 5

Question 1

What should you do if your vehicle gets stuck on the railroad tracks?

Answer 1

Get out of your vehicle and away from the tracks

Question 2

What is the minimum tread depth for tires other than front tires?

Answer 2

2/32 inch

Question 3

The distance traveled from the time the brain tells the foot to push the brake pedal to the time the foot actually pushes the pedal is the _______.

Answer 3

reaction distance

Question 4

__________ involves releasing the brakes only after the wheels lock up.

Answer 4

Stab braking

Question 5

Can federal inspectors inspect your truck or bus?

Answer 5

Yes, and they might place it out of service.

Question 6

If you are driving a long distance, you should _________.

Answer 6

stop often and take short breaks before you feel really drowsy or tired

Question 7

If you have a heavy load that is slowing you down on an upgrade, you should _________.

Answer 7

shift into a lower gear

Question 8

Cargo that can shift should have at least ___ tie-down(s).

Answer 8

2

Question 9

Converter dollies built on or after March 1, 1998 are required to have anti-lock brakes. These dollies will have a yellow malfunction lamp on _________.

Answer 9

the left side of the dolly

Question 10

Why is it important to have a helper when backing?

Answer 10

Because you have blind spots.

Question 11

How long does it take a typical tractor-trailer to clear a double railroad track?

Answer 11

More than 15 seconds

Question 12

A road user or condition that presents a possible danger is known as a _______.

Answer 12

hazard

Question 13

Avoid medications that cause drowsiness, schedule your trips for the daytime hours, and get 8-9 hours of sleep beforehand to __________ on your trips.

Answer 13

maintain alertness

Question 14

Where should you place your warning devices if you must stop on a one-way road or divided highway?

Answer 14

10 feet, 100 feet, & 200 feet toward approaching traffic

Question 15

Letting air out of hot tires ___________.

Answer 15

is a bad idea because when the tires cool off, the pressure will be too low

Question 16

If you are traveling at 55 mph in a 30-foot vehicle, you should leave how many seconds of following distance?

Answer 16

4 seconds

Question 17

When checking tires for a pre-trip inspection, tires of _______ should not be used on the same vehicle.

Answer 17

mismatched sizes

Question 18

To give adequate warning when passing someone, you should?

Answer 18

Tap (gently) the electrical horn first

Question 19

The purpose of a baffle is to ______.

Answer 19

control the load surge

Question 20

The only thing that can cure fatigue is _______.

Answer 20

sleep

Question 21

Which of these items is checked in a pre-trip inspection?

Answer 21

Whether all vehicle lights are working and are clean, wiper blades, & cargo securement

Question 22

Can be caused by the brakes becoming too hot?

Answer 22

Brake fade

Question 23

Can cause the vehicle to skid when the road is slippery?

Answer 23

Retarders

Question 24

First step to take when your vehicle catches fire while driving:

Answer 24

Get the vehicle off the road and stop in an open area

Question 25

Medical certificates must be renewed every ______.

Answer 25

two years

Question 26

A vehicle’s clearance ______ with the load carried.

Answer 26

can change

Question 27

If you are stopped at a roadside rest and are found with a BAC or blood alcohol concentration of .02 you will

Answer 27

be placed out of service for 24 hours.

Question 28

You should avoid driving through deep puddles or flowing water. But if you must, which of these steps can help keep your brakes working?

Answer 28

Gently pressing the brake pedal while driving through the water

Question 29

How should you use a brake pedal on a steep downhill grade?

Answer 29

Release the brake when you are 5mph below your safe speed, then let your speed come back up to your safe speed and repeat.

Question 30

Is backing always dangerous? (True/False)

Answer 30

True.
- Because you cannot see everything behind your vehicle, backing is always dangerous.

Question 31

An en-route inspection should include checking ______, ______, & ______.

Answer 31

Tire temperature, brake temperature, cargo doors & cargo placement

Question 32

To avoid a crash, you had to drive onto the right shoulder. You are now driving at 40 mph on the shoulder. How should you move back into the pavement?

Answer 32

Come to a complete stop if possible, before steering back onto the pavement.

Question 33

What is the average effective braking distance?

Answer 33

216 feet

Question 34

______ can have a bad effect on steering, braking, and speed control.

Answer 34

Overloading

Question 35

_________ is used to keep a vehicle from skidding.

Answer 35

Controlled braking

Question 36

You are starting a vehicle in motion from a stop; as you apply power to the drive wheels, they start to spin. You should _____________.

Answer 36

take your foot off the accelerator

Question 37

Where should your ignition key be during your pre-trip inspection?

Answer 37

In your pocket

Question 38

When driving in fog, you should be going?

Answer 38

Only fast enough so that you can stop within the distance that you can see ahead

Question 39

Not steering more than needed to clear what is in your way is a good rule to follow when _____________.

Answer 39

steering to avoid a crash