Lighting Practice

Different length of waves have different colors, the shorter waves are _______ in color and the longest waves are ______ .

• blue, yellow

• red, magenta

• blue, red

• white, red

The two basic ways in which bending occurs in optics is by ________ and ________ .

• reflection, intervention

• Intersection, rectangular

• intersection, refraction

• reflection, refraction

Which is true for an incandescent lamp?

• It is a low pressure gas discharge lamp.

• An electric current passes through a thin filament, heating it until it produces light.

• It needs a ballast to operate.

• It has a tiny electronic device that emits light.

A transformer

• transforms voltage and amperage up or down

• produces lighting pollution

• transform white light into color light

• starts the electric arc and regulates the current in discharge lamps

The warmness/coolness of a light source is referred to as the color temperature and is measured in degrees

• Candela

• Kelvin

• Luminous flux

• Lumen

Glare is a visual sensation caused by

• an inconstant or wavering light

• cosy and dimmed lighting

• the color variation of light

• excessive and uncontrolled brightness

_____ is the ability to adjust vision in bright and dark areas. ____ is the process of focusing the eye at different distances. This is mainly brought about by a change in the curvature of the lens.

• Glare/luminous intensity

• Adaptation/accomodation

• Adaptation/Lumen adjustment

• Indirect glare/accomodation

• Adjustment/lens flexibility

The electromagnetic radiation within the portion of the electromagnetic spectrum that can be perceived by the human eye.

• Lighting

• Light

• Color

• Lighting Design

Provides overall illumination for a room, and is intended to create a uniform light level throughout a space, independent of any special lighting that may be needed in targeted areas of a room

• Accent Lighting

• Task Lighting

• Ambient Lighting

Creates a dramatic emphasis on the space using a focused, or point, light

source or sources

• Accent Lighting

• Task Lighting

• Ambient Lighting