Full access allows:
- Solve all tests online without limits;
- Remove all advertisements on website;
- Adding questions to favorite list;
- Save learning progress;
- Save results of practice exams;
- Watching all wrong answered questions.
- Homepage »
- Third Assistant Engineer (Steam-Motor-Gas Turbine Plants (Unlimited)) »
- Q536 - Electrical, Electronic, & Control Engineering
464. What is the purpose of the inner phosphor coating of the fluorescent tube as shown in figure «A» of the illustration
The inner phosphor coating absorbs invisible ultraviolet light produced by the mercury vapor and emits visible white light, enabling illumination.
Comments (0)
There are no comments at the moment. If you found an error or think question is incorrect, tell everyone about it
Only signed in users can write comments
Signin