DVA31064 CH4: Vehicle Lighting System

In a basic bulb, one terminal is the centre contact. Where is the other terminal?

• Support 1

• Support 2

• The filament

• The cap

What is used to fill a light bulb?

• A very small amount of air

• Oxygen and Hydrogen

• Nitrogen Dioxide

• Carbon Dioxide

How many connectors are there on the base of a combined brake and rear light?

• 1

• 2

• 3

• 4

The table shows four properties of basic bulbs and quartz halogen bulbs. Which property is incorrect?

• 1

• 2

• 3

• 4

With a parabolic reflector, what shape beam is produced if the lamp filament is at the focus?

• Dip beam

• Parallel beam

• Diverging beam

• Converging beam

In order to get a dip beam in a parabolic reflector, where is the filament located?

• At the focal point

• Below the focal point

• Above the focal point

• At the side of the focal point

Which of the following is NOT a function of a lens?

• Distribute the beam pattern

• Protect the bulb

• Keep air out of the bulb

• Protect the reflector

Which of these will have the lowest power rating?

• Side light

• Main beam light (or filament)

• Dip beam light (or filament)

What do the initials SBC stand for when applied to a light?

• Small black connector

• Single blue connector

• Standard big connector

• Small bayonet connector

Why does the bimetallic strip bend when heated?

• The effect of gravity on softer metal

• The contact plate gets heavier

• The top metal expands more than the bottom metal

• It is repelled by the top contact plate