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Weights and Load Security Flashcards

6 cards from real CVOR practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. A driver is securing a 20,000 kg piece of machinery on a flatbed trailer. According to National Safety Code (NSC) Standard 10, what must be the minimum aggregate working load limit (WLL) of all tiedowns used?

    Answer: 10,000 kg

    NSC Standard 10 requires that the sum of the working load limits of all securement devices, known as the aggregate WLL, must be at least 50% of the weight of the cargo being secured. Therefore, for a 20,000 kg piece of machinery, the minimum aggregate WLL is 10,000 kg.

  2. A driver is transporting a single, 7-meter-long steel beam that is not blocked or positioned against a headboard. Based on NSC Standard 10 general cargo rules, what is the minimum number of tiedowns required?

    Answer: 3

    NSC Standard 10 specifies two tiedowns for articles over 1.52 meters (5 feet) up to 3.04 meters (10 feet) in length. For articles longer than 3.04 meters, it requires two tiedowns for the first 3.04 meters plus one additional tiedown for each subsequent 3.04 meters or portion thereof. A 4-meter article requires two for the first 3.04m and one more for the remaining portion, for a total of three.

  3. A driver is operating a semi-trailer with a standard tandem axle group on a Class A highway in Ontario. What is the maximum allowable weight for this tandem axle group under Regulation 413/05?

    Answer: 17,000 kg

    Under Ontario's Highway Traffic Act, Regulation 413/05, the maximum allowable weight for a standard tandem axle group on a Class A highway is 17,000 kg. This limit is subject to specific conditions such as minimum axle spread and tire size, but 17,000 kg is the standard maximum.

  4. Which of the following is a fundamental requirement for the securement of any type of cargo on a commercial motor vehicle?

    Answer: The cargo must be contained, immobilized, or secured to prevent shifting, tipping, or falling from the vehicle.

    The primary principle of cargo securement, as outlined in NSC Standard 10, is that the cargo must be firmly contained, immobilized, or secured on or within the vehicle to prevent it from shifting on, tipping on, or falling from the vehicle during transit. The other options are incorrect or apply only in specific situations.

  5. A commercial vehicle is transporting a single stack of logs, where each log is over 3 meters in length. According to the commodity-specific rules in NSC Standard 10, what is the minimum number of tiedowns required for this stack?

    Answer: Two tiedowns.

    NSC Standard 10 provides specific rules for different commodities. For a single stack of logs, a minimum of two tiedowns are required to secure the entire stack to the vehicle.

  6. While a shipper may be responsible for loading a trailer, who holds the primary legal responsibility for inspecting the cargo and ensuring it is properly secured before the vehicle is operated on a highway?

    Answer: The commercial vehicle driver

    Under Ontario regulations and NSC Standard 10, the driver of the commercial vehicle is ultimately responsible for inspecting the load and ensuring its securement before starting a trip and periodically during transit. While others have roles, the driver has final control and responsibility for the vehicle on the road.