7290-457 Lighting L2

What is removed in a incandescent lamp?

• Filament

• Xenon

• Air

• Halogen

Approximately what temperature emits white light?

• 6,000k

• 2,000 lumens

Why is Quartz used instead of glass with Halogen lamps?

• It does not react to the Inert gas

• It is stronger and resists higher temperatures

• It is cheaper and more abundant

• It is finger print resistant

Where would a parabolic reflector, with centre focal point be used?

• Spot lamps

• Reverse lamps

• Brake lamps

• Dipped beam

What is unique about a free form reflector lamp

• The lens is always plastic

• The lens is opaque

• The lens has no optical pattern

• The lens is alway made from glass

Where do you find Ellipsoidal reflectors?

• Projection headlights

• Sealed Beam Headlights

• Reverse lights

• Fog lamps

What is the purpose of the shield in a basic headlight?

• To protect bulb from water

• To protect reflector from damage

• To cut off unwanted light

• To reflect light through lens

Why are HID lamps used in headlights?

• They are more expensive

• They produce more light

• They use less power

• They are cheaper to produce

Why are lugs fitted to H4 lamps?

• To provide adequate Earth

• To allow correct beam pattern

• To add strength

• To ensure correct fitting

Halogen gas is pressurised, Incandescent lamps are vacuum?

• True

• False