Final answer:
The correct answer is option 3) 2 inches, which refers to the required size of lettering for signage indicating non-potable water sources and equipment.
Step-by-step explanation:
The correct answer is option 3) 2 inches. In the context of safety and regulatory signage, specific codes may dictate the required size of lettering to ensure visibility and compliance. While the provided references do not directly answer the question about signage for non-potable water and equipment, they suggest a problem-solving methodology that can be applied generally—using a given scale to determine actual sizes or distances in real-life scenarios. For example, if a scale drawing represents a swimming pool with a diameter of 1(1/2) inches and the scale factor is 1/72, the actual diameter of the pool in feet would be calculated by multiplying 1.5 (the inch measurement) by 72 (the scale factor), giving you an actual diameter of 108 feet.
In rooms containing alternate water sources and equipment, signage with visible lettering is required. The signage should have a lettering size of 2 inches. This is to ensure that the signage is easily readable and visible to individuals in the room.
For example, if there is a room with both non-potable water and equipment, there should be signage in that room with lettering size of 2 inches.