1. The levels of light on a surface is called illuminance. What is the unit for illuminance? Lux Flux Lumens Candelas

2. What is the gas present in fluorescent lamps? Neon Sodium Vapour Tungsten Vapour Mercury Vapour

3. Which of the following lamps does not need a ballast, transformer or control gear? Fluorescent Lamp Sodium Vapour lamp High Pressure Mercury Vapour lamp Incandescent lamp

4. Luminous efficacy is the measurement of lumens per watt of a lamp. Which of the following lamps has the highest efficacy? Fluorescent High Pressure Sodium Metal Halide Incandescent

5. Which of the following lamps would be most suitable in an installation at a sports ground, where there is TV coverage of the game? Metal Halide Mercury Vapour High Pressure Sodium Incandescent

6. What is the advantage of using electronic control gear for fluorescent lamps over normal switched start ballasts? Longer lamp life No flicker All the reasons listed Lower electricity costs

7. For external light fittings, the IP rating has to be considered. What does IP stand for? Illuminance Product Ingress Protection Internal Protocol Inpenetrable

8. Which is the most suitable reflector or diffuser for use in an office where personnel work on computers? No diffuser is necessary Opal glass diffuser Prismatic diffuser Double parabolic diffuser

9. Home lighting is generally a mixture of incandescent lamps, compact fluorescent lamps, tubular fluorescent lamps and halogen lamps. Which of the lamps typically requires a transformer? Compact Fluorescent Halogen Incandescent Tubular Fluorescent

10. Which of the following is the most important factor when doing a lighting design? Lighting costs - initial, running and replacement All are important Lamp colour versus Efficacy Aesthetics and choosing the correct fitting for the application