1) What is the main material used for the filament in an incandescent lamp? a) Copper b) Tungsten c) Aluminum d) Nickel 2) What type of lamp is a High Pressure Mercury Vapor Lamp? a) Incandescent lamp b) Discharge lamp c) Fluorescent lamp d) LED lamp 3) What gas is primarily used inside a mercury vapor lamp? a) Neon b) Hydrogen c) Mercury d) Helium 4) What is the main element used to produce light in a Low Pressure Sodium Lamp? a) Mercury b) Neon c) Sodium d) Argon 5) Which component controls current and provides voltage for lamp ignition? a) Capacitor b) Starter c) Ballast d) Transformer

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