OSH2423 OCCUPATIONAL HYGIENE

A factory worker operates near a furnace with minimal ventilation. What control measure should be applied?

• Provide noise-canceling earplugs

• Schedule more night shifts

• Install local exhaust ventilation and provide rest breaks

• Reduce lighting levels in the area

During a cold storage inspection, an employee complains of numb fingers. What immediate action should be taken?

• Give the worker an energy drink

• Ask the worker to increase their walking pace
  
  

• Provide warm gloves and move them to a warmer environment

• Reduce the number of workers in the cold room

An outdoor construction company is planning work in extreme heat. Which preventive action best applies the principle of heat illness prevention?

• Rotate workers and provide shaded rest areas

• Shorten workdays permanently

• Encourage use of personal fans

• Ban the use of hats to avoid overheating

In a scenario where employees work during a heatwave, which indicator best reflects heat exhaustion?

• Sharp chest pain

• Cold, pale, and clammy skin

• Sudden hearing loss

• Blurred vision at night

A worker exposed to freezing temperatures develops frostbite. What immediate application-based step should the supervisor take?

• Rub the affected area vigorously

• Immerse the area in warm (not hot) water
  
  

• Apply ice to reduce pain

• Keep the area exposed to air for quick thawing

A company is designing a policy to manage hot working environments. Which of the following would be the most suitable engineering control?

• Allowing more water breaks

• Installing reflective shields

• Providing heat stress training

• Assigning experienced workers only

How should a safety officer apply risk assessment findings to prevent cold stress among night shift warehouse workers?

• Increase productivity targets to reduce shift time

• Recommend the use of high-visibility vests

• Ensure workers wear layered thermal clothing

• Provide extra meal allowances

A maintenance worker uses a pneumatic drill daily. How should you apply noise control strategies in this case?

• Relocate the workstation outdoors

• Provide earplugs and schedule regular hearing tests

• Advise the worker to talk less during operation

• Use warning signs to alert others of the noise

During a noise survey, an area exceeds 90 dB consistently. What action demonstrates appropriate application of control measures?

• Post “High Noise Area” signs only

• Rotate workers and install sound barriers

• Use more powerful machinery to finish faster

• Encourage workers to speak louder

A worker complains of ringing in the ears after leaving the fabrication unit. What should be done first?

• Provide medication

• Remove them from the noisy environment and conduct a hearing test

• Increase machine lubrication

• Reduce shift duration for all workers