Vehicle Inspection & Basic Control Flashcards
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Read the first 9 Vehicle Inspection & Basic Control flashcards as text
Why is it important to perform a pre-trip inspection?
Answer: To ensure vehicle safety and legal compliance
A pre-trip inspection is a mandatory and critical step to identify any mechanical issues or defects before a commercial vehicle begins its journey. This ensures the vehicle is safe to operate, preventing potential accidents or breakdowns on the road. It also confirms that the vehicle meets all regulatory standards, avoiding fines and ensuring legal compliance.
What should you check for during a tire inspection?
Answer: Tread depth, inflation, and damage
During a tire inspection, checking tread depth ensures adequate grip and prevents hydroplaning, while proper inflation is vital for vehicle stability, fuel efficiency, and preventing blowouts. Inspecting for cuts, bulges, or punctures identifies potential damage that could lead to tire failure. These comprehensive checks are crucial for safe driving and preventing accidents.
Which part of the vehicle must you test during the brake system check?
Answer: Air, service, and parking brakes
A comprehensive brake system check for a commercial vehicle must include all components: the air brake system (if applicable), the service brakes (foot pedal), and the parking brake. Testing each ensures that the vehicle can be safely stopped, slowed, and held stationary. This thorough inspection is critical for preventing brake failures and ensuring road safety for the driver and others.
When backing a commercial vehicle, what is the best practice?
Answer: Use a helper and check mirrors
Backing a large commercial vehicle presents significant blind spots and challenges, making it a high-risk maneuver. Using a helper (spotter) provides an extra set of eyes to guide the driver and identify obstacles, while constantly checking mirrors helps the driver monitor their surroundings. This combination maximizes visibility and significantly reduces the risk of accidents, prioritizing safety during complex maneuvers.
Why is checking lights and reflectors important?
Answer: They ensure visibility and signaling
Lights and reflectors are essential safety features that make a commercial vehicle visible to other drivers, especially during low light conditions, inclement weather, or at night. Properly functioning lights (headlights, tail lights, turn signals, brake lights) and clean reflectors ensure that the vehicle's presence and intended actions are clearly communicated to others on the road, preventing collisions and enhancing overall road safety.
What is the purpose of checking under the vehicle?
Answer: To check for leaks and damage
Checking under the vehicle during an inspection is crucial for identifying any fluid leaks (oil, coolant, fuel, brake fluid) that could indicate a mechanical problem or environmental hazard. It also allows drivers to spot damage to the chassis, suspension, or other components that might compromise the vehicle's safety or operational integrity. This proactive check helps prevent breakdowns and ensures safe operation.
When should a driver perform a vehicle inspection?
Answer: Before, during, and after each trip
Commercial drivers are required to perform thorough vehicle inspections before each trip to ensure the vehicle is safe and compliant. During the trip, ongoing checks (e.g., monitoring gauges, listening for unusual noises) help identify issues as they arise. A post-trip inspection documents any new defects or maintenance needs, ensuring the vehicle is ready for its next use. This comprehensive approach maximizes safety and reliability.
Which document should always be in the vehicle during operation?
Answer: Registration, insurance, and inspection report
Commercial vehicles are legally required to carry specific documents that prove their legality and roadworthiness. Registration confirms ownership and legal operation, insurance provides financial protection, and the inspection report verifies that the vehicle has passed safety checks. These documents are essential for legal compliance and must be readily available for law enforcement to review.
What should be done if a defect is found during inspection?
Answer: Report and repair it before driving
Discovering a defect during an inspection means the vehicle may not be safe or legally compliant to operate. It is critical to immediately report the defect to the appropriate personnel and ensure it is repaired before the vehicle is driven. Ignoring defects can lead to accidents, breakdowns, fines, or even legal liabilities, prioritizing safety above all else.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- sd.gov — Exam format, passing score, retake policy, time limit, score validity, test delivery, fees, exam information · verified Oct 2026
- sdlegislature.gov — Score validity, fees · verified Oct 2026