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- 1. Multiple Choice
What is the operating position of a high pressure mercury lamp?
Vertical
Horizontal
Diagonal
Any
- 2. Multiple Choice
How long does it take for a high pressure mercury lamp to reach full brightness?
4 - 7 minutes
6 - 10 minutes
15 minutes
2 minutes
- 3. Multiple Choice
Why won't a high pressure mercury lamp work immediately after it has been switched off?
Because the pressure inside needs to drop
Because it is too hot
Because the pressure inside needs to increase
Because there isn't enough mercury left in it
- 4. Multiple Choice
What is the efficacy of a fluorescent tube?
12 lumens/watt
35 lumens/watt
60 lumens/watt
75 lumens/watt
- 5. Multiple Choice
What are the different types of fittings of a low pressure mercury start lamp? Tick all that apply
Glow start
Soft start
Semi resonant
Low frequency
High frequency
- 6. Multiple Choice
How much power does a CFL use when compared to an incandescent lamp?
1/8th less
1/3 less
1/6th less
1/2
- 7. Multiple Choice
Even though they are more expensive, what are the cost savings of a CFL over an incandescent lamp?
7 times the purchase price over it's lifetime
3 times the purchase price over it's lifetime
5 times the purchase price over it's lifetime
10 times the purchase price over it's lifetime
- 8. Multiple Choice
What is the CRI rating of a metal halide lamp?
65-80
85-96
43-57
59-79
- 9. Multiple Choice
What are the applications of a metal halide lamp? Tick all that apply.
Residential security lighting
Street lighting
Sports Arenas
Car headlamps
Indoor domestic use
- 10. Multiple Choice
What type of light does a fluorescent lamp emit?
Infra red
Ultraviolet
Phosphorescence
Yellow
- 11. Multiple Choice
It is a coiled wire which produces high voltage to start the fluorescent lamp into operation.
Ballast
Starter
Circuit breaker
Fuse
- 12. Multiple Choice
The life of fluorescent lamp is affected not only by the fluctuation of voltage and current but also _______
by the number of times, it is started
by the number fluorescent installed
by the number of hours use
by the number of switches connected
- 13. Multiple Choice
Which of the following lights is the most efficient producer of lights?
CFL
Incandescent bulb
fluorescent bulb
LED
- 14. Multiple Choice
How can you start the fluorescent without the starter?
by on & off the switch frequently
by getting a jumper wire shorting the terminal contact of the starter
by twisting the tube slowly
by getting other starter
- 15. Multiple Choice
How can you determine if the fluorescent bulb is no longer functioning?
by visual inspection
by testing through resistance test
by placing to other lighting fixture
by checking the contact between the lamp and lamp holder
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