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Trucks and buses are subject to certain laws, restrictions, and regulations. Which of these statements is true?
Laws always apply.
Optional safety equipment may include emergency phone numbers, tire chains, and
Warning devices and fire extinguishers are not optional.
Stab braking:
Brake, lock, release, brake, lock, release…
While driving at highway speeds, you should look ahead:
1,320 feet.
Name some important steering system parts.
One of these “ties” the front wheels together so they’ll turn together.
To correct a drive-wheel braking skid, you should:
Turn the other way.
Is it legal to drive a vehicle if one-fourth of the leaves in a leaf spring are broken or missing?
You’d better tell your mechanic about it.
The total weight of the powered unit, the trailer, and the cargo is called:
A combination of all the weights.
Implied consent means that when you operate a CMV on public roads, you:
Deep breath for that breathalyzer.
To safely adjust your speed to current driving conditions, what should you look for ahead?
How’s the drive?
Medical certificates must be renewed every:
Less three years.
To prevent a load from shifting, there should be at least one tie-down for every ____ feet of cargo.
Three for 30 feet of cargo.
After you start the engine, how long should it take for the oil pressure gauge to start to rise?
Almost immediately.
Tie-downs must be of the proper type and strength. According to federal regulations, the aggregate working load limit of the cargo tie-downs must be enough to secure:
Less than triple.
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 onto the pavement?
Getting back on the roadway too fast is dangerous.
If you must stop your vehicle beyond a curve that hides your vehicle from other drivers within 500 feet, place your warning devices:
Up to one-tenth of a mile behind.
To help you stay alert while driving, you should:
Break up the monotony.
The tendency for long commercial vehicles to swing wide on turns is called:
The rear wheels go off the track of the front wheels.
In your pre-trip inspection, you are checking your steering and exhaust systems. Which of these problems should be fixed before the vehicle is driven?
Steer safely.
Which of the following is true about a vehicle with a high center of gravity?
Bottom-heavy is safer than top-heavy.
You are driving a new truck with a manual transmission. To take a long, steep downhill grade:
Newer trucks have more powerful engines.
Is it safe to add coolant to a coolant recovery tank or coolant overflow tank while the engine is at operating temperature?
Some vehicles have coolant recovery containers that permit you to check the coolant level while the engine is hot.
Name two causes of fires.
Tires that overheat can catch fire.
It is important to shift gears correctly to keep:
To drive safely.
Truck escape ramps:
Always worth a try.
In your mirror, you see a car approaching from the rear. The next time you check your mirror, you don’t see the car. To change lanes, you should:
Beware of blind spots.
The best way to stop all skids is to:
It’s not necessarily about stopping or steering.
If you must stop on a road or the shoulder of any road, you must set out your emergency warning devices within:
You don’t have much time to do this.
The road you are driving on becomes very slippery because of glare ice. What should you do?
Don’t risk it
The best drivers watch for hazards and prepare for them in advance. This is called ________ driving.
Defend yourself from bad drivers and other hazards.
What are the regulations on the height of splash guards (mud flaps)?
No Federal regulations
Under federal regulations, if a vehicle is carrying a load that is more than two feet wide and extends more than four feet beyond the rear of the vehicle, _________ must be placed at the extreme end of the load in the daytime.
A couple.
If your brakes get wet on a rainy day, what can result?
Brakes work by friction.
To prevent brake fade, you should:
Overuse of brakes can cause them to overheat.
It takes the body about ____ hours to get rid of the alcohol in four alcoholic drinks.
1:1 ratio
The reaction distance is the distance traveled from the time:
After your brain has recognized the hazard.
If you need to leave the road in a traffic emergency, you should:
Some roads have soft shoulders.
To avoid rolling backward when you start your vehicle, you should:
Be prepared before you release the brake.
The braking effect of the engine is greatest when the engine is _____ the governed rpm and the transmission is in the ______ gears.
Lower gears deliver more torque.
What are some advantages of going right instead of left around an obstacle?
What is in the lane to your left?
Stab braking should not be used in vehicles with:
Stab braking locks the wheels.
While driving, you see a small (one-foot-square) cardboard box ahead in your lane. You should:
Do you know what’s inside it?
The distance your vehicle travels from the time your eyes see a hazard to the time your brain recognizes it is called _______ distance.
The time it takes to perceive a hazard.
Name some things you should check on the front of your vehicle during your pre-trip inspection.
They communicate your presence to other drivers.
Name two situations in which the legal maximum weights may not be safe to haul.
These situations require extra caution anyway.
On a two-way, two-lane road, if you must stop on a hill, how far back should you place your reflective triangles?
Up to one-tenth of a mile.
To prevent skidding, you should:
Be aware of weather and road conditions.
One can recognize hazardous materials by looking at the container’s:
Read between the lines.
If your vehicle catches fire while you are driving, you should:
Don’t let the fire spread.