TX CMV Handbook: General Knowledge 3 Flashcards
Is it legal to drive with 1/4 of a vehicle’s leaf springs broken or missing?
No
- Check for missing or broken leaves in any leaf spring. If 1/4 or more are missing, the CMV is “out of service”
You should look ahead about ______ in a congested area.
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
Wet brakes can ________.
Grab or become weak
When checking visible parts during pre-trip inspection, make sure the _________ are secured against snagging, rubbing, or wearing.
Air lines & electrical wiring
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 ______.
60 days
What kind of fires can you use an ABC fire extinguisher for?
Electrical fires, burning tires or cloth
- An ABC fire extinguisher can be used on electrical fires, burning liquids, wood, paper, or cloth
Aside from a placard, how else can you tell that cargo contains hazardous materials?
A four-inch, diamond-shaped hazardous materials label on the container
When roads are wet, you should reduce your speed by ___.
1/3
Two things drivers needing a HAZMAT endorsement must know:
- When to use placards
- Which products can be loaded together
Medicines used to treat the common cold often make you sleepy; therefore, they ___________.
should not be used while driving
In hot weather, engine belts can ______, & loose belts will not ____________.
crack, turn the water pump and/or turn the fan on properly
If other drivers’ vision is obscured or obstructed due to a hill or curve.while your CMV is stopped on the road, move __________.
the rear-most reflective triangle to a point further to the rear your vehicle (up to 500 feet), so warning is provided
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.
help
Most heavy vehicle accidents occur _____________.
between midnight and 6am
With a BAC of ___, most people lose consciousness, and some die.
0.4
Two ways the suspension system may defect are _________ and __________.
Leaking shock absorbers, broken or missing leaves
When someone coming towards you at night keeps their high beams on, you should look ____________.
at the right side of the road; “watch the sidelines”
If you must stop on a road or the shoulder of the road, you must put out your emergency warning devices within ______.
10 minutes
You are driving a new truck with a manual transmission. To take a long, steep downhill grade, ____________.
use a lower gear than you would use to climb the hill
In a vehicle with a high center of gravity, the cargo should be rearranged so that ____________.
the heaviest parts of the cargo are under the lightest parts
Look at a container’s ______ to know whether or not it contains hazardous materials.
label
Optional safety equipment may include emergency phone numbers, tire chains, & __________.
tire changing equipment
The best way to stop all skids is to ___________.
restore traction to the tires
__________ means that when you operate a CMV on public roads, you consent to be tested for alcohol in your blood.
Implied consent
It takes the body about ___ hours to get rid of the alcohol in four drinks.
4
Two good rules to follow when driving a slow moving vehicle are
- Turn on your flashers when it is safe and legal to do so
- Keep to the right.
