Illinois CDL Class B Section 2 & 3 Flashcards

Questions and Answers

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

Safety is the most important reason for completing a vehicle inspection.

What are some things you should check during a trip?

Watch gauges for signs of trouble, use senses to check for problems, check tires, wheels, brakes, lights, trailer connections, and cargo securement.

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

At least 4/32 inch tread depth for front tires and 2/32 inch for all other tires.

Name some key steering wheel parts.

Steering wheel, steering wheel shaft, tie rod, steering arms, spindle, steering ring knuckle, drag link, pitman arm, steering gear box. Signup and view all the answers

Name some key suspension system defects.

Broken suspension parts, cracked or broken spring hangers, missing leaves in leaf springs, leaking shock absorbers, damaged air suspension systems. Signup and view all the answers

What are three kinds of emergency equipment you must have?

Fire extinguishers, spare electrical fuses, warning devices (like reflective triangles). Signup and view all the answers

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

Clean all lights, reflectors, and glass. Signup and view all the answers

What should wheel bearing seals be checked for?

Wheel bearing seals should not be leaking. Signup and view all the answers

How many reflective triangles should you carry?

You should 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 for 5 seconds; the pedal should not move. Signup and view all the answers

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

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

Why should you back toward the driver side?

To see better. Signup and view all the answers

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

Partly engage the clutch, apply the parking brake, and ensure enough engine power before releasing the parking brake. Signup and view all the answers

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

There are blind spots you can't see. 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 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 with 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

Study Notes

Vehicle Inspection Importance

Safety is the primary reason for conducting vehicle inspections.
Identifying defects early can prevent breakdowns or accidents.

Trip Checkpoints

Monitor gauges for operational issues.
Utilize senses to detect problems.
Inspect critical components during stops:
- Tires, wheels, and rims
- Brakes
- Lights and reflectors
- Brake and electrical connections to trailer
- Trailer couplings
- Cargo securement devices

Tire Tread Depth

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

Key Steering Wheel Components

Components include:
- Steering wheel
- Steering wheel shaft
- Tie rod
- Steering arms
- Spindle
- Steering ring knuckle
- Drag link
- Pitman arm
- Steering gear box

Suspension System Defects

Critical for supporting the vehicle and load.
Common defects to check:
- Broken or cracked spring hangers
- Missing or broken leaf springs
- Leaking shock absorbers
- Damaged air suspension systems
- Cracked or missing frame members

Required Emergency Equipment

Fire extinguishers
Spare electrical fuses (if not circuit breaker equipped)
Warning devices (e.g., 3 reflective warning triangles)

Pre-Trip Inspection of Front Vehicle

Perform a walk-around inspection.
Clean lights, reflectors, and glass.

Wheel Bearing Seals

Ensure they are not leaking.

Reflective Triangles

Maintain a supply of three reflective warning triangles.

Testing Hydraulic Brakes

Pump brake pedal three times, maintain firm pressure for five seconds; pedal should not move.

Pre-Trip Safety

Keep starter switch key in pocket to prevent unauthorized movement of the vehicle.

Backing Technique

Back towards the driver’s side for better visibility.

Hill Start Strategy

Partially engage the clutch before releasing the brake to prevent rollback.
Use parking brake if needed until sufficient engine power is available.

Role of a Helper

Utilize a helper when backing to mitigate blind spots.

Hand Signals

Agreement on hand signals is crucial, particularly the signal to stop.

Downshifting Conditions

Downshift before descending a hill and before entering a curve.

Automatic Transmission Downshifting

Downshift when traveling downhill to maintain control.

Retarder Functionality

Retarders do not prevent skidding but assist in slowing the vehicle.
Types of retarders: exhaust, engine, hydraulic, electric.
Retarders engage braking power when the accelerator is released.

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Description

This quiz features flashcards from Illinois CDL Class B Sections 2 and 3, specifically covering pages 19 to 67. It is designed to help you understand the essential concepts of vehicle inspections and safety checks. Test your knowledge and prepare for your commercial driving license with these informative questions and answers.