CLC Emergency & Exit Lighting Standards 3

Question 1

Which code sets the minimum requirements for exit sign letter height in the United States?

Accepted Answer

NFPA 101 Life Safety Code

Answer

NFPA 101 Life Safety Code specifies that exit sign letters must be at least 6 inches high with a stroke width of at least 3/4 inch.

Question 2

What is the maximum viewing distance at which a 6-inch letter exit sign must be legible per NFPA 101?

Accepted Answer

100 feet

Answer

NFPA 101 specifies that exit signs with 6-inch letters must be legible from a distance of 100 feet.

Question 3

Photoluminescent exit signs gain their visibility by:

Accepted Answer

Absorbing ambient light energy and re-emitting it in darkness

Answer

Photoluminescent signs absorb visible light during normal conditions and re-emit stored energy as a glow when ambient light is lost.

Question 4

Under NEC Article 700, an automatically started generator used for emergency power must reach full voltage and frequency within how many seconds of loss of normal power?

Accepted Answer

10 seconds

Answer

NEC Article 700 requires emergency generators to attain full voltage and frequency within 10 seconds of normal power failure.

Question 5

A 'Class M' emergency luminaire classification indicates what battery technology?

Accepted Answer

Nickel-cadmium

Answer

UL 924 Class M designation refers to emergency luminaires using nickel-cadmium (Ni-Cd) battery technology.

(CLC) Certified Lighting Consultant Practice Test

(CLC) Certified Lighting Consultant Practice Test

CLC Emergency & Exit Lighting Standards 3