TX CMV Handbook: General Knowledge 3

Question 1

Is it legal to drive with 1/4 of a vehicle’s leaf springs broken or missing?

Answer 1

No
- Check for missing or broken leaves in any leaf spring. If 1/4 or more are missing, the CMV is “out of service”

Question 2

You should look ahead about ______ in a congested area.

Answer 2

One block
- Look at least 12-15 seconds ahead
- At lower speeds, 12-15 seconds ahead ~ one block
- At highway speeds, 12-15 seconds ahead ~ 1/4 of a mile

Question 3

Wet brakes can ________.

Answer 3

Grab or become weak

Question 4

When checking visible parts during pre-trip inspection, make sure the _________ are secured against snagging, rubbing, or wearing.

Answer 4

Air lines & electrical wiring

Question 5

Violations at railroad crossings: Not having sufficient space to drive all the way through without stopping or getting stuck on the tracks bc of insufficient clearance can lead to the loss of your CDL for ______.

Answer 5

60 days

Question 6

What kind of fires can you use an ABC fire extinguisher for?

Answer 6

Electrical fires, burning tires or cloth
- An ABC fire extinguisher can be used on electrical fires, burning liquids, wood, paper, or cloth

Question 7

Aside from a placard, how else can you tell that cargo contains hazardous materials?

Answer 7

A four-inch, diamond-shaped hazardous materials label on the container

Question 8

When roads are wet, you should reduce your speed by ___.

Answer 8

1/3

Question 9

Two things drivers needing a HAZMAT endorsement must know:

Answer 9

1. When to use placards
2. Which products can be loaded together

Question 10

Medicines used to treat the common cold often make you sleepy; therefore, they ___________.

Answer 10

should not be used while driving

Question 11

In hot weather, engine belts can ______, & loose belts will not ____________.

Answer 11

crack, turn the water pump and/or turn the fan on properly

Question 12

If other drivers’ vision is obscured or obstructed due to a hill or curve.while your CMV is stopped on the road, move __________.

Answer 12

the rear-most reflective triangle to a point further to the rear your vehicle (up to 500 feet), so warning is provided

Question 13

If a qualified person is helping at the scene of an accident, stay out of the way unless asked to assist. Otherwise, you should ______ any injured people.

Answer 13

help

Question 14

Most heavy vehicle accidents occur _____________.

Answer 14

between midnight and 6am

Question 15

With a BAC of ___, most people lose consciousness, and some die.

Answer 15

0.4

Question 16

Two ways the suspension system may defect are _________ and __________.

Answer 16

Leaking shock absorbers, broken or missing leaves

Question 17

When someone coming towards you at night keeps their high beams on, you should look ____________.

Answer 17

at the right side of the road; “watch the sidelines”

Question 18

If you must stop on a road or the shoulder of the road, you must put out your emergency warning devices within ______.

Answer 18

10 minutes

Question 19

You are driving a new truck with a manual transmission. To take a long, steep downhill grade, ____________.

Answer 19

use a lower gear than you would use to climb the hill

Question 20

In a vehicle with a high center of gravity, the cargo should be rearranged so that ____________.

Answer 20

the heaviest parts of the cargo are under the lightest parts

Question 21

Look at a container’s ______ to know whether or not it contains hazardous materials.

Answer 21

label

Question 22

Optional safety equipment may include emergency phone numbers, tire chains, & __________.

Answer 22

tire changing equipment

Question 23

The best way to stop all skids is to ___________.

Answer 23

restore traction to the tires

Question 24

__________ means that when you operate a CMV on public roads, you consent to be tested for alcohol in your blood.

Answer 24

Implied consent

Question 25

It takes the body about ___ hours to get rid of the alcohol in four drinks.

Answer 25

4

Question 26

Two good rules to follow when driving a slow moving vehicle are

Answer 26

1. Turn on your flashers when it is safe and legal to do so
2. Keep to the right.