When applying rate-of-rise heat detectors, use care to avoid locating them in areas where temperatures might normally be expected to rise as much as ____________ in 1 minute (or less) in order to avoid unwanted alarms.
When applying rate-of-rise heat detectors, use care to avoid locating them in areas where temperatures might normally be expected to rise as much as ____________ in 1 minute (or less) in order to avoid unwanted alarms.
When applying rate-of-rise heat detectors, it is important to avoid placing them in locations where the temperature could normally increase by 12 to 15°F (6.7 - 8.4°C) in one minute or less. This is because rate-of-rise heat detectors are designed to trigger an alarm if the rate of temperature increase exceeds a certain threshold, which is typically around 12 to 15°F per minute. Placing them in areas with such temperature fluctuations could result in false alarms.
The rate-of-rise detector, however, will function when the rate of temperature increase exceeds a predetermined value, typically around 12 to 15°F (7 to 8°C) per minute.
Correct Answer is B : 12 to 15 F
ANS: B