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Quiz 10 - Lighting Concepts and Incandescent Lighting

A vibrant image depicting various light sources and lighting designs, showcasing both incandescent and modern lighting technologies in a well-lit room.

Illuminate Your Knowledge: Lighting Concepts Quiz

Welcome to the Lighting Concepts and Incandescent Lighting Quiz! Test your knowledge on essential lighting principles, luminous efficacy, and the specific requirements for various lighting installations. Whether you’re a student, professional, or simply interested in enhancing your understanding of lighting, this quiz is designed for you.

20 multiple choice questions
Evaluate your understanding of key lighting concepts
Learn about incandescent lighting and its applications

20 Questions5 MinutesCreated by ShiningLight301

Lux can be defined as:

1 lumen/m2

1 candela/m2

1 lumen/W

1 watt/lm

The centre terminal of a GES lamp holder must be connected to:

Earth

Neutral

Frame

Active

Which of the following would NOT be a restricted location for a smoke alarm in a residential home?

Within 200mm of the cornice

In the apex of the roof

Mounted vertically above a doorway

Mounted in a hallway between bedrooms

A total luminous flux of 3000lm falls uniformly on an area of 5m by 3m. Determine the level of illuminance on the area.

100 lux

200 lux

5 lux

50 lux

Find the luminous intensity of an emergency light if an illuminance of 0.5lx exists at a distance of 3m.

4.5 candela

1.5 candela

18 candela

4.2 candela

The unit of luminous efficacy is:

Lumens

Lumens/watt

Candelas/watt

Lux

At what height should a luminaire, with an intensity of 3000cd, be mounted to illuminate a surface which requires an illumination of 350 lux?

8.5 metrew

4.2 metres

3.3 metres

2.9 metres

If the operating voltage is increased to an incandescent lamp, what would the effect be on the efficacy and the lamp life?

Both will decrease

Both will increase

The efficacy will increase and the lamp life decrease

The efficacy will decrease and the lamp life increase

In the lighting terms, the level at which a task is performed is termed the:

Visual task

Task area

Working plane

Reflectance

The quantity of light arriving at a surface is termed:

Illumination

Luminance

Luminous intensity

Luminous flux

Glare from a light source is termed:

Shielding angle

Indirect glare

Direct glare

Reflectance

Glare reflected from a surface is termed:

Shielding angle

Indirect glare

Direct glare

Reflectance

The object being illuminated for a particular purpose is termed:

Visual task

Task area

Working plane

Reflectance

Efficiency of a light source is termed:

Luminous efficacy

Luminousity

Illuminace

Maximum light output

The change of direction due to change of density of material it passes through is termed:

Shielding angle

Reflection

Diffusion

Refraction

The angle below the horizontal axis at which the lamp is first visible is termed:

Cut-off angle

Working plane

Shielding angle

Glare angle

For correct operation, halogen lamp tubes should be installed:

Within 4 degrees of the horizontal

Within 10 degrees of the horizontal

To align with the working plane

In a protective enclosure

What is the wiring rules required clearance above a recessed halogen lamp?

50 mm

100 mm

150 mm

200 mm

What happens to the resistance of an incandescent lamp filament as the temperature increases?

Increases

Decreases

Remains unchanged

Is inversely proportional to the size of the lamp

When light bounces off a surface this is called?

Refraction

Reflection

Polaristaion

Diffusion

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