Skip to content
WorkZen
Academy
Home
Tous les métiers
Ma progression
fr
English
EN
Français
FR
Español
ES
Menu
Home
Tous les métiers
Ma progression
Search certifications...
fr
English
EN
Français
FR
Español
ES
Académie
Electrical
FOA CFOT (Certified Fiber Optic Technician)
Safety, Standards & Industry Best Practices
Vérification des connaissances
Safety, Standards & Industry Best Practices
Vérification des connaissances
Vérification des connaissances
1 / 10
Why are 1310 nm and 1550 nm wavelengths particularly dangerous compared to visible light sources?
A
They are invisible, so the eye has no blink reflex to protect itself
B
They pass through safety glasses without attenuation
C
They generate more heat than visible wavelengths
D
They cause damage to skin as well as eyes
Vérifier la réponse
Retour aux leçons
Start Practice Exam