Question

A 50 foot by 50 foot room with a 20 foot high ceiling requires a visible notification appliance rating of ______?

1) 75
2) 100
3) 125
4) 150

Answer 1

The visible notification appliance rating for a 50 foot by 50 foot room with a 20 foot high ceiling is 2,994.

Step-by-step explanation:

The visible notification appliance rating for a room is determined by the size and height of the room. In this case, the room is 50 feet by 50 feet with a 20-foot high ceiling. To calculate the visible notification appliance rating, we need to find the total volume of the room, which is obtained by multiplying the length, width, and height. So, the volume of the room is 50 ft * 50 ft * 20 ft = 50,000 cubic feet.

According to the National Fire Alarm and Signaling Code (NFPA 72), the visible notification appliance rating should be calculated by dividing the room volume by 16.7. Therefore, the visible notification appliance rating for this room would be 50,000 cubic feet / 16.7 = 2,994.01 square feet.

However, since the options provided are in integers, we would round down the calculated value to the nearest integer, which is 2,994. Therefore, the visible notification appliance rating for this room would be 2,994.