Shared Flashcard Set

Details

CDL 2
CDL 2
114
Other
Not Applicable
04/02/2013

Additional Other Flashcards

 


 

Cards

Term

 What is the most important reason for doing a vehicle inspection?

Definition
Safety
Term

What things should you check during a trip?

Definition

Watch gauges for signs of trouble.

Use your senses to check for problems (look, listen, smell, feel).

Check critical items when you stop:

  1. Tires, wheels and rims.
  2. Brakes.
  3. Lights and reflectors.
  4. Brake and electrical connections to trailer.
  5. Trailer coupling devices.
  6. Cargo securement devices.
Term

 Name some key steering system parts.

Definition
  • Steering wheel
  • Steering shaft
  • Tie rod
  • Steering arm
  • Spindle
  • Steering knuckle
  • Drag link
  • Pitman arm
  • Gear box
  • Hydralic fluid reservior
Term

 Name some suspension system defects.

Definition
  • Spring hangers that allow movement of axle from proper position.
  • Cracked or broken spring hangers.
  • Missing or broken leaves in any leaf spring.
  • Broken leaves in a multi-leaf spring or leaves .
  • Leaking shock absorbers.
  • Torque rod or arm, u-bolts, spring hangers, or other axle positioning parts that are cracked, damaged, or missing.
  • Air suspension systems that are damaged and/or leaking.
  • Any loose, cracked, broken, or missing frame members.

 

Term

 What three kinds of emergency equipment must you have?

Definition
  • Fire extinguisher(s).
  • Spare electrical fuses (unless equipped with circuit breakers).
  • Warning devices for parked vehicles (for example, three reflective warning triangles).
Term

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

Definition

At least 4/32 inch tread depth on front tires

At least 2/32 inch on other tires

Term

Name some things you should check on the front of your vehicle during the walk around inspection.

Definition

Front of vehicle and check-

low beams

four-way flashers.

high beams (Turn off after inspected)

parking lights

clearance lights

side-marker

identification lights.

right turn signal

Start walk-around inspection.

Term

What should wheel bearing seals be checked for?

Definition
no leaks are present
Term

How many red reflective triangles should you carry?

Definition
3
Term

How do you test hydraulic brakes for leaks?

Definition

Pump brakes three times, apply firm pressure for five seconds

If brakes move, there may be a leak or other problem.

Term

Why put the starter switch key in your pocket during the pre-trip inspection?

Definition
So someone else won't move truck while you are under it.
Term

Why should you back toward the driver's side?

Definition
Optimal vision on drivers side mirror when having to turn to back up
Term

If stopped on a hill, how can you start moving without rolling back?

Definition

If you have a manual transmission vehicle-

partly engage the clutch before you take your right foot off the brake.

Put on the parking brake

Release the parking brake with enough engine power.

On a tractor-trailer equipped with a trailer brake hand valve-

the hand valve can be applied to keep from rolling back.

Term

When backing, why is it important to use a helper?

Definition
To assist with blind spots
Term

What's the most important hand signal that you and the helper should agree on?

Definition
The signal for "stop"
Term

 What are the two special conditions where you should downshift?

Definition
  1. Before Starting Down a Hill
  2. Before Entering a Curve
Term

When should you downshift automatic

transmissions?

Definition
when on down grades
Term

 Retarders keep you from skidding when the road is slippery. True or False?

Definition
False
Term

 What are the two ways to know when to shift?

Definition

Engine Speed (rpm)

Road Speed (mph)

Term

How far ahead does the manual say you should look?

Definition

At least 12 to 15 seconds ahead-

  • At lower speeds, that's about one block.
  • At highway speeds it's about a quarter of a mile
 

 

Term

What are two main things to look for ahead?

Definition

 

Traffic that maybe stopped ahead-

Sudden stops

Sudden lane changes

 

Term

 What's the most important way to see the sides and rear of your vehicle?

Definition
  • Checking mirrors regularly
  • Checking more often in special situations
Term

 What does "communicating" mean in safe driving?

Definition

Warn other drivers on the road such as:

Signaling-

turning corners 

changing lanes

Pump brakes lightly to flash lights-

slowing down

trouble ahead

Emergency flashers-

stop in the roadway to unload cargo

slow speed

stopped

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Term

 Where should your reflectors be placed when stopped on a divided highway?

Definition

Place warning devices from end of vehicle-

10 feet, 100 feet, and 200 feet toward the approaching traffic

Term

 What three things add up to total stopping distance?

Definition
Perception Distance + Reaction Distance + Braking Distance
Term

 If you go twice as fast, will your stopping distance increase by two or four times?

Definition
Four times
Term

 Empty trucks have the best braking. True or False?

Definition
False
Term

 What is hydroplaning?

Definition
Water or slush collects on the road and creats the tires to lose their contact with the road and have little or no traction
Term

 What is "black ice"?

Definition
A thin layer of ice that is clear enough that you can see the road underneath it
Term
How do you find out how many seconds of following distance space you have?
Definition
  • Indicate a clear landmark a vehicle passes infront of you.
  • Then count off: "one thousand- and-one, one thousand-and-two" and so on, until you reach the same spot.
  • Compare your count with the rule of one second for every ten feet of length

 

Term

If you are driving a 30-foot vehicle at 55 mph, how many seconds of following distance should you allow

Definition

one second for each 10 feet of vehicle length at speeds below 40 mph, add one second for speeds above 40 MPH: 

Determine size of vehicle: 30-feet (3 seconds)

Determine speed of travel: 55 MPH (above 40 MPH +1)

Total seconds of following distance: 4 seconds 

Term
You should decrease your following distance if somebody is following you too closely. True or False?
Definition

False, opening room infront of you helps prevent having to make sudden speed or direction change

 

Term
If you swing wide to the left before turning right, another driver may try to pass you on the right. True or False?
Definition

True,

Keep the rear of your vehicle close to the curb. This will stop other drivers from passing you on the right

Term
What is a hazard?
Definition
Any road condition or road user (Bicyclist, pedestrian, driver) that is a possible danger
Term
Why make emergency plans when you see a hazard?
Definition
To prepare you for defensive drivering which will improve your own safety as well as others
Term

What are some tips to follow so you won’t become a distracted driver?

Definition
  • Review and be totally familiar with all in-vehicle electronics:

cell phone

pre-program radio stations

pre-load you favorite CDs or cassette tapes

clear the vehicle of any unnecessary objects

  • Review maps and plan your route
  • Adjust all mirrors
  • Don’t attempt to read or write while driving
  • Avoid smoking, eating and drinking
  • Don’t engage in complex or emotionally intense conversations
Term

How do you recognize a distracted driver?

 
Definition
  • Vehicles may drift into lane divider lines or within their own lane
  • Vehicles traveling at inconsistent speeds
  • Drivers preoccupied with maps, food, cigarettes, cell phones, or other objects.
  • Drivers involved in conversations with their passengers.
Term

 What is the difference between aggressive driving and road rage?

Definition

Aggressive driving:

operating a motor vehicle in a selfish, bold, or pushy manner, without regard for the rights or safety of others.

Road rage:

operating a vehicle with the intent of doing harm to others or physically assaulting a driver or their vehicle.

Term

 What should you do when confronted with an aggressive driver?

Definition

Confronted with an aggressive driver you should:

get out of their way

don't challenge them

avoid eye contact

ignore gestures and refuse to react to them

report aggressive drivers

 

If an aggressive driver is involved in a crash farther down the road:

stop a safe distance from the crash scene

wait for the police to arrive

report the driving behavior that you witnessed

 

Term

What are some things you can do to reduce your stress before and while you drive?

Definition

Some things you can do to reduce your stress before and while you drive:

listen to "easy listening" music

give the drive your full attention

be realistic about your travel time

If you’re going to be later than you expected – deal with it:

take a deep breath and accept the delay

give other drivers the benefit of the doubt

slow down and keep reasonable following distance

don’t drive slowly in the left lane of traffic

avoid gestures

be a cautious and courteous driver

 

 

 

 

 

 

Term

You should use low beams whenever you can. True or False?

Definition
True, using high beams can cause glare for other drivers making unsafe
Term

What should you do before you drive if you are drowsy?

Definition
Sleep before you drive! Even a nap can save your life or the lives of others
Term

What effects can wet brakes cause? How can you avoid these problems?

Definition

Effects wet brakes cause:

lack of braking power

wheel lockups

pulling to one side or the other

jackknife if you pull a trailer

Avoid driving through:

deep puddles or flowing water

If not, you should:

slow down and place transmission in a low gear

gently put on the brakes (This presses linings against brake drums or discs and keeps mud, silt, sand, and water from getting in)

increase engine rpm and cross the water while keeping light pressure on the brakes

When out of the water:

maintain light pressure on the brakes for a short distance

make a test stop when safe to do so

 

Term

You should let air out of hot tires so the pressure goes back to normal. True or False?

Definition
False, the pressure will be too low when the tires cool off
Term

You can safely remove the radiator cap as long as the engine isn't overheated. True or False?

Definition
True, just allow the radiator to cool down before removing cap
Term

What factors determine your selection of a "safe" speed when going down a long, steep downgrade?

Definition

Factors determine your selection of a "safe" speed when going down a long, steep downgrade:

total weight of the vehicle and cargo

length of the grade

steepness of the grade

road conditions

weather

Term

Why should you be in the proper gear before starting down a hill?

Definition

Why you should be in the proper gear before starting down a hill:

wont be able to shift into a lower gear

may not even be able to get back into any gear

all engine braking effect will be lost

Term

Describe the proper braking technique when going down a long, steep downgrade

Definition

Proper braking technique when going down a long, steep downgrade:

apply the brakes just hard enough to feel a definite slowdown

when your speed has been reduced to approximately five mph below, release the brakes. (This brake application should last for about three seconds.)

when your speed has increased to your "safe" speed, repeat steps 1 and 2

Term

What type of vehicles can get stuck on a railroad-highway crossing?

Definition

Type of vehicles can get stuck on a railroad-highway crossing:

low slung units (lowboy, car carrier, moving van

possum-belly livestock trailer)

single axle tractor pulling a long trailer with its landing gear set to accommodate a tandum-axle tractor

Term

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

Definition
15 seconds or more
Term

Stopping is not always the safest thing to do in an emergency. True or False?

Definition
True, its much easier to steer out of an emergency then to stop
Term

What are some advantages of going right instead of left around an obstacle?

Definition

Advantages of going right instead of left around an obstacle:

if the shoulder is clear, going right may be best

no one is likely to be driving on the shoulder but

If you are blocked on both sides, a move to the right may be best

 

Term

What is an "escape ramp?"

Definition

Escape ramps are long bed of loose, soft materials built on many steep mountain downgrades and upgrades to stop runaway vehicles safely without injuring drivers and passengers.

 

Term

If a tire blows out, you should put the brakes on hard to stop quickly. True or False?

Definition
False, putting brakes can cause skidouts and jackknifes for trailers
Term
What are some things to do at an accident scene to prevent another accident?
Definition

If your vehicle is involved in the accident, try to:

get it to the side of the road

If you're stopping to help:

park away from the accident (The area immediately around the accident will be needed for emergency vehicles.)

put on your flashers

set out reflective triangles to warn other traffic

(Make sure other drivers can see them in time to avoid the accident.)

Term

Name two causes of tire fires.

Definition
Under-inflated tires and duals that touch.
Term

What kinds of fires is a B:C extinguisher not good for?

Definition

Fires in combustable metals 

Wood, paper, and ordinary combustable

 

Term

When using your extinguisher, should you get as close as possible to the fire. True or False?

Definition
False
Term

Name some causes of vehicle fires.

Definition

Causes of vehicle fires:

after Accidents

spilled fuel

improper use of flares

Tires:

Under-inflated tires and duals that touch

Electrical System:

short circuits due to damaged insulation

loose connections

Fuel:

driver smoking

improper fueling

loose fuel connections

Cargo:

flammable cargo

improperly sealed or loaded cargo

poor ventilation

Term
Common medicines for colds can make you sleepy. True or False?
Definition
True
Term
What should you do if you become sleepy while driving?
Definition

Keep Cool

Take Breaks

Recognize the Danger Signals of Drowsy Driving

 

Term
Coffee and a little fresh air will help a drinker sober up. True or False?
Definition
False
Term
What is a hazardous materials placard?
Definition

Placards are signs put on the outside of a vehicle that identify the hazard class of the cargo

They are at least 10 3/4 inches square, turned upright on a point, in a diamond shape

 

Term
Why are placards used?
Definition
Placards are used to warn others of hazardous materials you are carring
Term
What is "sleep debt"?
Definition
If you don’t sleep enough, you "owe" more sleep to yourself
Term
What are the danger signals of drowsy driving?
Definition
  • Your eyes close or go out of focus by themselves.
  • You have trouble keeping your head up.
  • You can’t stop yawning.
  • You have wandering, disconnected thoughts.
  • You don’t remember driving the last few miles.
  • You drift between lanes, tailgate, or miss traffic signs.
  • You keep jerking the truck back into the lane.
  • You have drifted off the road and narrowly missed crashing.
Term

What four things related to cargo are drivers responsible for?

Definition
  • Inspecting cargo.
  • Recognizing overloads and balanced weight.
  • Cargo is properly secured and does not obscure your view ahead or to the sides.
  • Cargo does not restrict your access to emergency equipment.
 
Term

How often must you stop while on the road to check your cargo?

Definition
  • Inspect the cargo and its securing devices before departing and again within the first 50 miles after beginning a trip.
  • After you have driven for 3 hours or 150 miles.
  • After every break you take during driving.
Term

How is Gross Combination Weight Rating different from Gross Combination Weight?

Definition

Gross Combination Weight (GCW).

The total weight of a powered unit, plus trailer(s), plus the cargo.

 

Gross Combination Weight Rating (GCWR).

The maximum GCW specified by the manufacturer for a specific combination of vehicles plus its load.

 

Term

Name two situations where legal maximum weights may not be safe.

Definition
  1. During bad weather
  2. In mountains
Term

What can happen if you don't have enough weight on the front axle?

Definition
  • Can make the steering axle weight too light to steer safely.
  • Can cause poor traction.
  • Front wheels may spin easily.
  • During bad weather, the truck may not be able to stop properly
Term

What is the minimum number of tiedowns for any flat bed load?

Definition
No matter how small the cargo, it should have at least two tiedowns
Term

What is the minimum number of tiedowns for a 20-foot load?

Definition
10
Term

Name the two basic reasons for covering cargo on an open bed.

Definition
  1. To protect people from the cargo
  2. To protect the cargo from the weather
Term

What must you check before transporting a sealed load?

Definition
That it doesnt exceed gross weight and axle weight limit
Term
Why must air tanks be drained?
Definition

Air tanks must be drained to:

Keep oil and water build up in the air tanks which can freeze in cold weather and cause brake failure.

Term
What is a supply pressure gauge used for?
Definition
Supply pressure gauges tell you how much pressure is in the air tanks.
Term
All vehicles with air brakes must have a low pressure warning signal. True or False?
Definition
True
Term
What are spring brakes?
Definition
Spring brakes are the emergency mechanical force which engages when air pressure eventually leaks away
Term
Front wheel brakes are good under all conditions. True or False?
Definition
True
Term
How do you know if your vehicle is equipped with antilock brakes?
Definition
Vehicles with ABS have yellow malfunction lamps to tell you if something isn’t working. Tractors, trucks will have yellow ABS malfunction lamps on the instrument panel. Trailers will have yellow ABS malfunction lamps on the left side, either on the front or rear corner. Dollies manufactured on or after March 1, 1998 are required to have a lamp on the left side.
Term

What is a dual air brake system?

Definition
A dual air brake system has two separate air brake systems, which use a single set of brake controls.
Term

What are the slack adjusters?

Definition
Slack Adjusters connected to the push rod that adjusts the brake pads slack
Term

How can you check slack adjusters?

Definition
  • Park on level ground and chock the wheels to prevent the vehicle from moving.
  • Release the parking brakes to move the slack adjusters.
  • Use gloves and pull hard on each slack adjuster that you can reach.
  • If a slack adjuster moves more than about one inch where the push rod attaches to it, it probably needs adjustment
Term

How can you test the low pressure warning signal?

Definition
  • Shut the engine off when you have enough air pressure so that the low pressure warning signal is not on.
  • Turn the electrical power on and step on and off the brake pedal to reduce air tank pressure.
  • The low air pressure warning signal must come on before the pressure drops to less than 60 psi in the air tank (or tank with the lowest air pressure, in dual
Term

How can you check that the spring brakes come on automatically?

Definition

The spring brakes to come on:

  • Fan off the air pressure by stepping on and off the brake pedal to reduce tank pressure.
  • The tractor protection valve and parking brake valve should close (pop out)
  • On a tractor-trailer combination vehicle and the parking brake valve should close (pop out)
  • On other combination and single vehicle types when the air pressure falls to the manufacturer’s specification (20 – 40 psi).

 

Term

What are the maximum leakage rates?

Definition

Maximum leakage rate:

  • Apply 90 psi or more with the brake pedal
  • After the initial pressure drop, if the air pressure falls more than three psi in one minute for single vehicles (more than four psi for combination vehicles), the air loss rate is too much
Term

What factors can cause brakes to fade or fail?

Definition

Heat can caused brakes to fade or fail by excessive use of the service brakes

 

Term

The use of brakes on a long, steep downgrade is only a supplement to the braking effect of the engine. True or False?

Definition
true
Term

If you are away from your vehicle only a short time, you do not need to use the parking brake. True or False?

Definition
False
Term

How often should you drain air tanks?

Definition
Drain your air tanks at the end of each working day
Term

How do you brake when you drive a tractor-trailer combination with ABS?

Definition
  • Use only the braking force necessary to stop safely and stay in control.
  • Brake the same way, regardless of whether you have ABS on the tractor, the trailer, or both.
  • As you slow down, monitor your tractor and trailer and back off the brakes (if it is safe to do so) to stay in control.
Term

You still have normal brake functions if your ABS is not working. True or False?

Definition
True
Term

What two things are important to prevent

rollover?

Definition
  1. Keep the cargo as close to the ground as possible
  2. Drive slowly around turns
Term
When you turn suddenly while pulling doubles, which trailer is most likely to turn over?
Definition
The last trailer
Term
Why should you not use the trailer hand brake to straighten out a jackknifing trailer?
Definition
Because the trailer wheels will loose their traction and continue to jackknife the trailer
Term
What is offtracking?
Definition
When a vehicle goes around a corner, the rear wheels follow a different path than the front wheels
Term

When you back a trailer, you should position your vehicle so you can back in a curved path to the driver’s side. True or False?

Definition
True
Term
Why should you not use the trailer hand valve while driving?
Definition
You can cause the trailer to skid or jackknife
Term

Describe what the trailer air supply control does.

Definition

Red eight-sided knob:

  • To control the tractor protection valve.
  • You push it in to supply the trailer with air, and pull it out to shut the air off and put on the trailer emergency brakes
Term
Describe what the service line is for?
Definition

The service line (also called the control line or signal line):

 

  • Carries air which is controlled by the foot brake or the trailer hand brake
  • The service line is connected to relay valves
  • These valves allow the trailer brakes to be applied more quickly than would otherwise be possible
Term
What is the emergency air line for?
Definition

The emergency line (also called the supply line) has two purposes:

  • First, it supplies air to the trailer air tanks.
  • Second, the emergency line controls the emergency brakes on combination vehicles.
  • Loss of air pressure in the emergency line causes the trailer emergency brakes to come on.
  • The pressure loss could be caused by a trailer breaking loose, thus tearing apart the emergency air hose.
  • Or it could be caused by a hose, metal tubing, or other part breaking, letting the air out.
  • When the emergency line loses pressure, it also causes the tractor protection valve to close (the air supply knob will pop out)
Term
Why should you use chocks when parking a trailer without spring brakes?
Definition
Because eventually the air will leak out of the emergency valve, releasing the brakes
Term
Where are shut-off valves?
Definition
Located at the rearend of the truck
Term
What might happen if the trailer is too high when you try to couple?
Definition
It may not couple correctly causing the trailer to be unsecured
Term
After coupling, how much space should be between the upper and lower fifth wheel?
Definition
none
Term
You should look into the back of the fifth wheel to see if it is locked onto the kingpin. True or False?
Definition
True
Term
To drive you need to raise the landing gear only until it just lifts off the pavement, True or False?
Definition
False
Term
How do you know if your trailer is equipped with antilock brakes?
Definition

Trailers will have yellow ABS malfunction lamps on the left side, either on the front or rear corner.

Term
Which shut-off valves should be open and which closed?
Definition
Both Emergency and Service Line Shut-off valve.
Term
How can you test that air flows to all trailers?
Definition

Open the service line valve to check that

service pressure goes through all the trailers

Term

How can you test the tractor protection valve?

 

 

Definition
  • Charge the trailer air brake system. (That is, build up normal air ressure and push the "air supply" knob in.
  • Shut the engine off.
  • Step on and off the brake pedal several times to reduce the air pressure in the tanks.
  • The trailer air supply control (also called the tractor protection valve control) should pop out (or go from "normal" to "emergency" position) when the air pressure falls into the pressure range specified by the manufacturer. (Usually within the range of 20 to 45 psi.)
  • If the tractor protection valve doesn't work right, an air hose or trailer brake leak could drain all the air from the tractor.
  • This would cause the emergency brakes to come on, with possible loss of control.
Term
How can you test the trailer emergency brakes?
Definition
  • Charge the trailer air brake system and check that the trailer rolls freely.
  • Then stop and pull out the trailer air supply control (also called tractor protection valve control or trailer emergency valve), or place it in the "emergency" position.
  • Pull gently on the trailer with the tractor to check that the trailer emergency brakes are on.
Term
How can you test the trailer service brakes?
Definition
  • Check for normal air pressure, release the parking brakes, move the vehicle forward slowly, and apply trailer brakes with the hand control (trolley valve), if so equipped.
  • You should feel the brakes come on.
  • This tells you the trailer brakes are connected and working. (The trailer brakes should be tested with the hand valve but controlled in normal operation with the foot pedal, which applies air to the service brakes at all wheels).
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