Vehicle Inspection Safety Procedures
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Questions and Answers

What is the most important reason for vehicle inspection?

Safety

What things should you check during a trip?

Instruments, air pressure gauge, temp gauge, pressure gauge, ammeter/voltmeter, mirrors, tires, cargo/cargo covers, lights.

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.

<p>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, air suspension systems that are damaged and/or leaking, any parts of the suspension or frame that is cracked or broken.</p> Signup and view all the answers

What 3 kinds of emergency equipment should you have?

<p>Fire extinguisher, 3 reflective triangles, spare fuses.</p> Signup and view all the answers

What is the minimum tread depth for tires?

<p>4/32-inch front; 2/32-inch rear.</p> Signup and view all the answers

What should you check on the front of the vehicle during a walk-around inspection?

<p>Front axle, steering system, windshield, wipers, lights, and reflectors.</p> Signup and view all the answers

What should wheel bearing seals be checked for?

<p>Leaks.</p> Signup and view all the answers

How do you test hydraulic brakes for leaking?

<p>Pump the brake pedal 3 times and then hold pressure for 5 seconds; the pedal should not move.</p> Signup and view all the answers

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

<p>For your safety.</p> Signup and view all the answers

Why should you back toward the driver's side?

<p>So you can see better.</p> Signup and view all the answers

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

<p>Partly engage the clutch before you take your foot off the brake; put on the parking brake whenever necessary to keep from rolling back.</p> Signup and view all the answers

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

<p>Because there are blind spots you can't see.</p> Signup and view all the answers

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

<p>Stop.</p> Signup and view all the answers

What are 2 special conditions where you should downshift?

<p>Before starting down a hill; before entering a curve.</p> Signup and view all the answers

When should you downshift an automatic transmission?

<p>When going down grades.</p> Signup and view all the answers

Retarders keep you from skidding when the road is slippery.

<p>False</p> Signup and view all the answers

What are the 2 ways to know when to shift?

<p>Engine RPM's or road speed.</p> Signup and view all the answers

How far ahead does the manual say you should look?

<p>12 to 15 seconds.</p> Signup and view all the answers

What are 2 main things to look for ahead?

<p>Look for vehicles coming onto the highway, into your lane, or turning. Watch for brake lights from slowing vehicles.</p> Signup and view all the answers

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

<p>Mirrors.</p> Signup and view all the answers

What does 'communicating' mean in safe driving?

<p>Signaling your intentions.</p> Signup and view all the answers

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

<p>10 feet, 100 feet, and 200 feet toward the approaching traffic.</p> Signup and view all the answers

What 3 things add up to total stopping distance?

<p>Perception distance, reaction distance, braking distance.</p> Signup and view all the answers

If you go twice as fast, will your stopping distance increase by 2 or 4 times?

<p>False</p> Signup and view all the answers

Empty trucks have the best braking.

<p>False</p> Signup and view all the answers

What is hydroplaning?

<p>When your tires lose their contact with the road and you have no traction.</p> Signup and view all the answers

What is black ice?

<p>A thin layer of clear ice that you can see the road through.</p> Signup and view all the answers

How do you find out how many seconds of following distance space you have?

<p>Wait until the vehicle ahead passes some landmark, then count off the seconds until you reach the same spot.</p> Signup and view all the answers

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

<p>4 seconds.</p> Signup and view all the answers

You should decrease your following distance if someone is following you too closely.

<p>False</p> Signup and view all the answers

If you swing wide to the left before turning right, another driver may try to pass you on the right.

<p>False</p> Signup and view all the answers

Study Notes

Vehicle Inspection and Safety

  • Vehicle inspection is primarily for ensuring safety.
  • During a trip, check instruments, gauges, mirrors, tires, cargo, lights, and more.

Steering and Suspension Systems

  • Key steering components include: steering wheel, tie rod, hydraulic fluid reservoir, gear box, and power steering cylinder.
  • Suspension defects can involve: broken spring hangers, damaged air suspension, and leaking shock absorbers.

Emergency Equipment and Tire Requirements

  • Essential emergency equipment includes: fire extinguisher, three reflective triangles, and spare fuses.
  • Minimum tread depth is 4/32 inch for front tires and 2/32 inch for rear tires.

Pre-Trip and Backing Procedures

  • Walk-around inspection checks: front axle, steering system, windshield, lights, and wipers.
  • Check wheel bearing seals for leaks.
  • For safety, keep starter key in your pocket during pre-trip inspection.

Backing Techniques

  • Back toward the driver’s side for improved visibility.
  • Engage the clutch partially to prevent rolling back on a hill; use the parking brake as needed.
  • Use a helper when backing due to blind spots.

Shifting and Braking

  • Most crucial hand signal to agree on with a helper is "stop."
  • Downshift before descending hills or entering curves; for automatic vehicles, downshift when going downhill.
  • Shift timing is determined by engine RPMs or road speed.

Safe Driving Practices

  • Look ahead 12 to 15 seconds for potential hazards.
  • Key observations include vehicles emerging into your lane or brake lights from slowing vehicles.
  • Use mirrors as the primary way to monitor sides and rear of the vehicle.

Communication and Reflector Placement

  • Communicating in driving means signaling intentions to other drivers.
  • When stopped on a divided highway, position reflectors at 10 feet, 100 feet, and 200 feet from your vehicle towards oncoming traffic.

Stopping Distance and Driving Conditions

  • Total stopping distance consists of perception, reaction, and braking distances.
  • Doubling your speed increases stopping distance by four times.
  • Empty trucks do not have better braking capabilities.
  • Hydroplaning occurs when tires lose contact with the road surface, leading to a lack of traction.
  • Black ice is a thin, invisible layer of ice that reflects the underlying road surface.

Following Distance

  • To gauge following distance, count seconds from when the vehicle ahead passes a landmark until you reach it.
  • Recommended following distance for a 30-foot vehicle at 55 mph is four seconds.
  • Do not reduce following distance if tailgated; maintain it for safety.
  • Swinging wide left before a right turn can create passing risks on the right side.

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Description

Test your knowledge on vehicle inspection and safety protocols. This quiz covers essential checks, emergency equipment requirements, and steering and suspension system components. Ensure you know the proper backing techniques and pre-trip procedures for safe driving.

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