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What is the minimum height above the floor that burners and ignition must be located in a garage, according to national standards?

  1. 12 inches

  2. 18 inches

  3. 24 inches

  4. 30 inches

The correct answer is: 12 inches

According to national standards, the minimum height above the floor for burners and ignition in a garage is 12 inches. This is to ensure that the heat from the burners does not ignite any flammable materials that may be stored on the ground. Option B is incorrect because it is higher than the minimum requirement. Option C and D are also incorrect because they are significantly higher than the minimum requirement and may pose a safety hazard as they are closer to the ceiling. It is important to adhere to the national standards to ensure the safety and proper functioning of the equipment.