Ohio CDL Flashcards

Questions and Answers

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

Safety

What things should you check during a trip?

Watch gauges for signs of trouble. Use your senses to check for problems (look, listen, smell, and feel). Check critical items when you stop: tires, wheels, rims, brakes, lights and reflectors, brake and electrical connections to trailers, trailer coupling devices, cargo securement devices.

Name some key steering system parts.

Steering wheel, tie rod, steering shaft, hydraulic fluid reservoir, gear box, pitman arm, drag link, steering knuckle, spindle, steering arm, power steering cylinder.

Name some suspension system defects.

Spring hangers that allow movement of axle from proper position, cracked or broken spring hangers, missing or broken leaves in any leaf spring, leaking shock absorbers, damaged or leaking air suspension systems, any parts of the suspension or frame that are cracked or broken. Signup and view all the answers

What three kinds of emergency equipment must you have?

Fire extinguisher, spare electrical fuses, warning devices for parking vehicles (three reflective triangles or at least 6 fuses or 3 liquid burning flares). Signup and view all the answers

What is the minimum tread depth for front tires?

4/32 inch Signup and view all the answers

What is the minimum tread depth for other tires?

2/32 inch Signup and view all the answers

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

Low beams, four-way flashers, high beams. Signup and view all the answers

What should wheel bearing seals be checked for?

Leaks Signup and view all the answers

How many red reflective triangles should you carry?

3 Signup and view all the answers

How do you test hydraulic brakes for leaks?

Pump the brake pedal three times, then apply firm pressure to the pedal and hold for five seconds. The pedal should not move. Signup and view all the answers

Why put the starter switch key in your pocket during the vehicle inspection?

Prevent someone from moving the truck while you are in it. Signup and view all the answers

How often should cargo securement be checked?

First 50 miles and every 150 miles or every 3 hours (whichever comes first). Signup and view all the answers

Why should you back toward the driver's side?

Better view. Signup and view all the answers

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

By partially engaging the clutch before releasing the brake. Signup and view all the answers

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

Blind spots. Signup and view all the answers

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

Stop. Signup and view all the answers

What are the two special conditions where you should downshift?

Before starting down a hill and before entering a curve. Signup and view all the answers

When should you downshift automatic transmissions?

When going downhill. Signup and view all the answers

Retarders keep you from skidding when the road is slippery.

False Signup and view all the answers

What are the two ways to know when to shift?

Use engine speed (rpm) or road speed (mph). Signup and view all the answers

How far ahead does the manual say you should look?

12-15 seconds ahead. Signup and view all the answers

What are two main things to look for ahead?

Look for traffic: vehicles coming onto the highway, into our lane, or turning. Watch for brake lights from slowing vehicles. Look for road conditions. Look for hills and curves — anything you'll have to slow or change lanes for. Signup and view all the answers

What are your most important ways to see the sides and rear of your vehicle?

Mirrors. Signup and view all the answers

What does 'communicating' mean in safe driving?

Signaling your intentions. Signup and view all the answers

Where should you place reflectors when stopped on a divided highway?

10 feet, 100 feet, and 200 feet toward approaching traffic. Signup and view all the answers

Where should you place reflectors when stopped on a two-way or undivided highway?

10 feet in front or rear (corners to mark vehicle location) and 100 feet in front and behind vehicle. Signup and view all the answers

What three things add up to total stopping distance?

Perception distance, reaction distance, braking distance. Signup and view all the answers

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

Four times. Signup and view all the answers

Study Notes

Vehicle Inspection

Vehicle inspections are crucial for safety.
During a trip, monitor gauges, and use all senses (look, listen, smelly, feel) for potential issues.
Check critical items at stops: tires, wheels, brakes, lights, connections to trailers, coupling devices, and securement devices.

Steering System

Key components include steering wheel, tie rod, steering shaft, hydraulic fluid reservoir, gear box, pitman arm, drag link, steering knuckle, spindle, steering arm, and power steering cylinder.

Suspension System

Common defects: movement of axle due to improper hanging, cracked spring hangers, missing/broken leaves in leaf springs, leaking shock absorbers, and damage to air suspension systems.

Emergency Equipment

Required emergency items: fire extinguisher, spare electrical fuses, and warning devices (three reflective triangles, six fuses, or three liquid burning flares).

Tread Depth

Minimum tread depth for front tires is 4/32 inch.
Minimum tread depth for other tires is 2/32 inch.

Walk-Around Inspection

During the visual walk-around, check low beams, four-way flashers, and high beams.

Wheel Bearings

Wheel bearing seals must be inspected for leaks.

Reflective Triangles

Carry three red reflective triangles for emergencies.

Hydraulic Brakes

Test for leaks by pumping the brake pedal three times, then applying firm pressure for five seconds; the pedal should not move.

Safety Precautions

Keep the starter switch key in your pocket during inspections to prevent others from moving the vehicle.
Cargo securement should be verified after the first 50 miles and every 150 miles or every three hours, whichever comes first.

Backing Up

Backing should be done towards the driver's side for better visibility.
To prevent rolling back on a hill, partially engage the clutch before releasing the brake.
Use a helper while backing to mitigate the risk associated with blind spots.

Hand Signals

Agree on an essential hand signal with the helper: the "stop" signal.

Shifting Techniques

Downshift before descending a hill and when entering a curve.
Automatic transmissions should be downshifted while going downhill.
Shift using engine speed (rpm) or road speed (mph).

Visibility and Awareness

Look 12-15 seconds ahead while driving.
Observe for traffic changes, road conditions, and potential obstacles (vehicles, brake lights, hills, curves).

Side and Rear Visibility

Utilize mirrors as the primary means to see the sides and rear of the vehicle.

Safe Driving Communication

"Communicating" in driving refers to signaling your intentions to other road users.

Reflector Placement

On a divided highway, place reflectors 10 feet, 100 feet, and 200 feet away from the vehicle towards approaching traffic.
On a two-way or undivided highway, place reflectors 10 feet in front or rear for corner marking, and 100 feet in front and behind the vehicle.

Stopping Distance

Total stopping distance consists of perception distance, reaction distance, and braking distance.
Increasing speed significantly (twice as fast) leads to a greater increase in stopping distance, specifically by four times.

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Description

Test your knowledge with these flashcards designed for Ohio CDL preparation. Covering essential vehicle inspection topics, these flashcards will help reinforce critical safety checks and maintenance practices. Great for anyone looking to enhance their understanding of commercial driving regulations.