Texas CNG(Compressed Natural Gas) Driver Practice

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Prepare for the Texas CNG Driver Test. Study with flashcards and multiple choice questions, each question has hints and detailed explanations. Get ready for your CNG certification exam in Texas!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What should the horizontal guard railing be secured to?

Concrete foundations
Wooden posts
Vertical supports
Aluminum frames

The correct answer is: Vertical supports

The horizontal guard railing should be secured to vertical supports. This design is crucial because vertical supports provide the necessary stability and strength to the railing system. By anchoring the horizontal elements to vertical supports, it creates a robust framework that can withstand the forces applied to it, such as weight from leaning or accidental bumps. Furthermore, vertical supports are typically anchored securely to a firm base, ensuring that the entire guard railing system remains steady and effective in providing safety. While other materials such as concrete foundations and wooden posts can be part of the overall construction, the primary role of vertical supports is to directly bear the load of the horizontal guard railing, making this the optimal choice.