CHAPTER 4 LIGHTING SAFETY

"Before we begin… who turned on the brightness in this room? (It was you, wasn't it?) Write your name here

What is luminous flux?

• The ability of light to travel through a vacuum
• The quantity of light energy emitted per second in all directions
• The intensity of light focused on a surface
• The brightness level of a light source

Which unit is used to measure illuminance?

• Candela
• Lumen
• Lux
• Watt

Which of the following is a regulation related to lighting safety in Malaysia?

• Industrial Lighting Act 1977
• Building Safety and Structure Act 1985
• Occupational Safety and Health Act 1994
• Workplace Hazardous Control Act 2000

Which of the following is NOT a symptom of visual fatigue?

• Blurred vision
• Headache
• Hearing loss
• Eye irritation

What is the purpose of a Lux meter?

• To measure room temperature
• To measure light intensity (illuminance)
• To determine sound levels
• To record light exposure

Which best describes local lighting?

• Lighting covering the entire workspace evenly
• Lighting used for emergency exits only
• Lighting for a small, specific task area
• Outdoor lighting for walkways

Which of the following is a benefit of good lighting at the workplace?

• Increases humidity levels
• Enhances visual comfort and reduces fatigue
• Promotes darkness during work
• Reduces the need for electrical safety

Under OSHA 1994, employers must:

• Reduce workplace lighting costs
• Remove all local lighting sources
• Provide and maintain a safe work environment
• Install only overhead lights

Poor lighting can indirectly lead to musculoskeletal disorders because:

• It makes the air quality poor
• Workers may adopt awkward postures to see better
• It increases temperature
• It causes hearing damage