Question

Which of the following statements about flame detectors is MOST accurate?

A. Infrared flame detectors can be designed to be sensitive to only light produced by hostile fires.
B. Ultraviolet flame detectors are recommended for areas where intense mercury-vapor lamps are used.
C. Infrared flame detectors are virtually insensitive to sunlight, and can be used in areas not suitable for ultraviolet detectors.
D. Ultraviolet flame detectors are virtually insensitive to sunlight, and can be used in areas not suitable for infrared detectors.

Answer 1

The MOST accurate statement about flame detectors is that infrared flame detectors are virtually insensitive to sunlight and can be used in areas not suitable for ultraviolet detectors.

Step-by-step explanation:

The MOST accurate statement about flame detectors is option C: Infrared flame detectors are virtually insensitive to sunlight, and can be used in areas not suitable for ultraviolet detectors.

Infrared flame detectors are designed to be sensitive to light produced by hostile fires and are not affected by sunlight. They can be used in areas where ultraviolet detectors might not work properly, such as outdoor environments with a high presence of sunlight.