General Knowledge 4

When the road is tricky for sand on the road, black ice, or dirt, and engine retarder will help the truck from skidding. What do you think about it?

TRUE
False

The two dominating things to catch a glimpse of ahead for mean driving are _____?

Bridges and Tunnels.
Road signs and detours.
Fire and Flooding.
Traffic and road conditions.

The distance you should see ahead of your vehicle is

1/4 mile at highway speed
1/2 mile at highway speed
1/8 mile at highway speed

Why do you take the key out of the truck when you are at the Pre Trip Inspection?

So you don't lose it.
So no one moves the vehicle while you are inspecting underneath it.
You will need it to open the side box.
You will need it to inspect the trailer.

What charges air or hydraulic fluid to the brake assembly wheel

Color and taste of the liquid
The liquid is the same as solid
The weight of the liquid
The viscosity of the liquid

The possession or use of drugs while working is prohibited by law except when:

Using amphetamines and drinking lots of whater
Using over-the-counter drugs while calling a friend
A doctor informs you that the drug prescribed will not affect safe driving abilities.
Using alchohol and taking a nap

What to do if a driver coming in the opposite direction has suddenly slipped into your lane or if an obstacle suddenly blocks your way

Move to the right.
Move to the left.
Brake immediately.
Apply the brakes slowly and signal a lane change.

How much bearing depth should you have on the front tires when driving in winter?

Minimum of 4/32 inches
Under 4/32 inches
Minimum of 2/32 inches
Maximum 2/32 inches

When you pass another commercial vehicle, pedestrian, or biker you should suppose that ______.

They can move into your lane.
They know you want to pass.
They see your vehicle.
They will help you pass.

How can you prevent the effects that wet brakes can cause?

Gently apply the brakes. This presses the linings against the brake drums or discs and keeps mud, silt, sand, and water from getting in.
Slow down and place the transmission in a low gear
You can place the transmission in a lower gear and make a hard brake 5 times.
Increase engine rpm and cross the water while keeping light pressure on the brakes.

When we talk about an equipment inspection, which of these sentences is true?

Axle clamps must be verify over each part where they are safety to the axle vehicle structure.
Distortioned Coil springs are safe when they are not broken.
Suspension parts must be verify on all axles except the power unit.
All of the above.

Name two important times when you should downshift?

Downshift before entering a curve and before going up a hill.
Downshift before starting down a hill and before entering a curve.
Downshift before starting down a hill and before going up a hill.
Downshift if there is an accident or sudden heavy rain.

Which three things add up to the total stopping distance for your truck or bus?

Perception distance, reaction distance, and braking distance
Sight distance, correspondence distance, brake distance
Attention distance, reaction distance, slowing distance

For the commercial vehicle to skid, there is ______

Turning too sharply.
Not enough weight on the front axle.
Over acceleration
All of the above.

Which three things add up to the total stopping distance for your truck or bus?

Perception distance, reaction distance, and braking distance
Sight distance, correspondence distance, brake distance
Attention distance, reaction distance, slowing distance

you should see ahead of your vehicle when you are driving is approximately

1/2 block at lower speeds
2 blocks at lower speeds
1 block at lower speeds

When backing up the tractor-trailer, try to AVOID…

Backing toward the right (passenger) side
Backing toward the left (driver's) side
Pulling ahead to re position your trailer
Having someone help/guide you

A tractor-trailer combination has more probability to roll over on a curve when the configuration includes:

Lack of braking power.
Pulling to one side or the other.
Brakes to apply unevenly.
All of the above.

Before transporting a sealed clog, it is pertinent to search that_____?

The seal is secure.
The load is properly secured.
The seal is authentic.
The placard numbers match the seal numbers.

When will you lose your CDL for life?

If you have committed a serious traffic violation.
If you use a CMV to commit a felony involving controlled substances or if you commit an alcohol-related offense for the second time.
If you leave the scene of an accident involving a CMV for the first time.
If you commit an alcohol-related offense for the second time.
If you use a CMV to commit a felony involving controlled substances.

Can the state inspectors check your truck?

Yes, but they cannot put it out of service
No, they cannot
Yes, and they can put it out of service
No, but they can report it

When driving in heavy rain or deep standing water, your brakes will get wet. Water in the brakes can cause?

Brakes to apply unevenly.
None of the above.
Pulling to one side or the other.
The brakes to be weak, to apply unevenly, or to grab. Lack of braking power.

How far ahead should a driver look of the vehicle while driving?

1-3 seconds
6-9 seconds
12-15 seconds
19-22 seconds

Which of the following statements is true about empty trucks?

They have better traction.
They require less braking power.
They require a longer braking distance.
They are easier to handle.

Which of these sentences about staying alert is a true span?

If you have to stop and take a nap, it should be in a rest area or truck's stops, never on the shoulder of the road
A half hour break for coffe will do more to keep you alert than a half hour nap
Sleep is the only thing that can overcome fatigue

Which of the following statements is true regarding front wheel braking?

Front wheel braking is bad in hot time conditions
Front wheel braking is good under all conditions
Front wheel does not exist
Front wheel braking is good only if you use the retarder, is the only way to use.

Tire fires ares possibly caused by

Loose fuel connections and short circuits.
Under-inflated tires and duals that touch.
Duals that touch or improper fueling
Driver smoking and improperly loaded cargo

If you dont have a Hazardous Materials Endorsement on your CDL, you can

Drive a vehicle that carries hazardous materials if it does not require placards.
Not carry any type of hazardous material.
Transport hazardous materials if your employer tells you.
Only transport liquid hazardous materials.

What does it mean: the order “bottoming out” refers to in an air brake system?

The reservoirs total depletion
The push rod travels to the base of the brake chamber
The brake chamber hit’s the truck frame when applied
The foot valve hit’s the floor when applied

You are driving on a rainy day and the drive wheels begin to spin. To keep control of the commercial vehicle “semi-truck”, which of these is the best action to take?

Brake hard
Take your foot off the accelerator
Steer to the left or right
Accelerate slightly

When we talk about stopping in an emergency situation, which of the following isn’t true?

It doesn't matter how you brake on an emergency situation.
You should brake to keep straight your vehicle.
Yo should avoid using the brakes until your speed has dropped to about 40 mph.
All of the above are true.

Which of the following statements about “smooth bore” liquid tankers is false?

You must be extremely cautious, especially when starting.
There is nothing inside the tank that can slow down the flow of liquid.
Food products will possibly be transported in an unbaffled liquid tank.
Forward and back liquid surge is reduced.

Too practically weight on the move axle can cause poor traction.

False
True

You are stopped on an incline. How do you avoid rolling back?

Engage the clutch
Put neutral
Put on parking brake
Press the accelerator hard

The angle between the pushrod and adjuster’s arm must be a little over 90 degrees when the brakes are released, and not less than 90 degrees when the brakes are applied

Shock Absorber
Shoes
Air brakes chamber
Slack Adjusters

Which of these don’t need to be checked during a pre-trip inspection

The load is secured
If all the vehicle lights are right and clean
How much fuel there is in the vehicle

The best time to test your parking brake is…

When the vehicle is parked
When the vehicle is going down a hill
When the vehicle is moving slowly
When the vehicle is traveling on the highway

You are driving on a highway and your front tire has just exploded. What should I do?

Braking strong.
Pump the brakes.
Keep clear of the brake until you have slowed down.
Keep driving until you find a service station

If your trailer starts to skid while you are braking, you should?

use foot brake and the horn
release the brakes and allow them to begin to regain traction, once its wheels have regained their grip on the road, the trailer will begin to straighten out and follow the tractor
use parking brake
To activate the horn

Which of these answers is correct about taking emergency actions or avoiding a crash?

Pushing on the trailer air supply valve
Pulling the trailer air supply valve
Connection of the hand of the gland of the service line
Disconnection of the hand of the gland of the service line

The distance you should see ahead of your vehicle is

1/4 mile at highway speed
1/2 mile at highway speed
1/8 mile at highway speed

To prevent brake fading, you should

Choose a shift gear who keep your vehicle at safe speed on steeped downgrades
Apply constant pressure to the brakes on steeped downgrades
Coast on steeped downgrades

Just after connecting the airlines and before moving back under the trailer, you must?

Walk around the vehicle to be sure it is free
Provide air to the trailer system, then take off the air supply knob
Make sure that the trailer brakes are off
All of the above

To reduce or prevent such injuries, Texas CDL driver manual recommends using the?

wear clothes that are comfortable
three points of contact system to get on and off the truck
use 3 points safety, first aid box, medicines and the emergency phone call close to you
3 points of contact are police number, DMV DOT number and road safety service

Another driver may try to pass you on the right if you swing wide to the left before turning right.

True
False

Which of these sentences about driving in cold weather is true?

An engine cannot overheat when the weather is too cold
Exhaust system leaks are less dangerous in cold weather
Antifreeze and windshield wipers should be used

How many feet away could be extended the blind spot behind the bus?”

200
450
400
150

Trucks and busses are under certain rules, regulations and restrictions. Which of these sentences is true?

County and city rules don't apply on trucks and busses dedicated to interstate commerce
Federal regulations are applied only for trucks and busses used at least 50 miles of one trip
Laws and restrictions can be different from one place to another

Which of the following is true?

Alcohol increases your ability to drive
Alcohol reduce your ability to drive
Coffee and a little fresh air help sober up a driver
A drink wake up a sleepy driver

What is the alcohol evaporator’s primary purpose?

Remove water and oil from the air brake system and air conditioner
Remove alcohol from the air brake system because is danger to the air conditioner
Put alcohol into the air system, an alcohol evaporator puts alcohol into the air system to help reduce the risk of ice in cold weather.
To heat the air tank reduce the risk of ice in cold weather.

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