Answer the following statement(s) true (T) or false (F)
1. Nonconductive optical fiber cables can be run in the same raceway or cable tray as Class 1
circuits.
2. Plastic optical fibers are a preferred choice in extreme temperatures.
3. Light travels in the form of an electromagnetic wave.
4. There is a difference between the index of refraction between the core and cladding of an
optical fiber cable .
5. Loose-tube cable is more commonly used inside a building.
1. T
2. F
3. T
4. T
5. F
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What factors need to be considered before selecting a lamp and how can the lighting system be divided up in order to analyze it?
What will be an ideal response?
Answer the following statement(s) true (T) or false (F)
Dry buildings are easier to heat than damp ones.
Technician A says that a thermoset paint, when fully cured, will get soft when solvents are applied. Technician B says that a thermoplastic paint, when fully cured, will not get soft when solvents are applied. Who is correct?
A. Technician A only B. Technician B only C. Both Technicians A and B D. Neither Technician A nor B
At what pressure range does the technician valve off the vacuum pump when evacuating to a deep vacuum?
A. 200 to 100 microns. B. 300 to 100 microns. C. 300 to 200 microns. D. 500 to 300 microns.