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MCQ: How do you check the draft of a vent-connected appliance?

A. By using a thermometer to measure the temperature of the vent gases
B. By visually inspecting the vent for obstructions
C. By using a draft gauge to measure the pressure difference between the appliance and the vent outlet
D. By checking the manufacturer's instructions

Answer :

Final answer:

To accurately check the draft of a vent-connected appliance, use a draft gauge to measure the pressure difference between the appliance and the vent outlet, as it directly evaluates the vent system's functionality.

Explanation:

Checking the draft of a vent-connected appliance is essential for ensuring its safe and efficient operation. The correct answer to how you check the draft of such an appliance is by using a draft gauge to measure the pressure difference between the appliance and the vent outlet. Draft gauges are specialized instruments designed to accurately measure small pressure differences, ensuring that the appliance is venting properly. This method is more precise than visual inspection, temperature measurement, or relying solely on manufacturer's instructions, as it directly assesses the functional performance of the vent system.

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