Intro to Process Safety

What is hazard?

• Event that gave rise to an
  accident or had potential to
  lead to an accident

• Source or situation (chemical or physical) with a
  potential to cause harm, injury or damage to either
  human, property or the environment or some
  combination of these

  
  

• a combination of the likelihood of an
  occurrence of a hazardous event with
  specified period

• an event likely to occur within the
  specific period or in specified circumstances

Which of the following is an example of a physical hazard?

• Noise exposure
  

• Toxic chemicals

• Viruses and bacteria

• Workplace stress

What is the best way to control a hazard in the workplace?

• Relying on personal protective equipment (PPE)

• Eliminating or reducing the hazard at the source

• Increasing the number of warning signs

• Conducting frequent safety training

Slips, trips, and falls are considered biological hazards.

• True
• False

Electrical hazards can occur due to faulty wiring or overloaded circuits.

• True
• False

Which example best represents the application of inherent safety?

• Training employees to wear protective gear

• Installing more alarms and emergency systems

• Increasing the number of safety inspections

• Replacing a toxic chemical with a less hazardous alternative

What is the main advantage of inherent passive safety?

• It relies on external safety devices to prevent hazards

• It eliminates the need for human intervention and external energy sources

• It increases the complexity of the safety system

• It requires frequent maintenance to remain effective

Which of these is an example of an inherent passive safety measure?

• Using a pressure relief valve in a chemical reactor

• Replacing a hazardous solvent with a non-toxic alternative

• Designing storage tanks to withstand overpressure without active controls

• Requiring personal protective equipment (PPE) for workers

An automatic pressure relief system in a reactor is an example of inherent active safety.

• True
• False

Which of the following is an example of inherent active safety?

• A reactor that shuts down automatically when overheating is detected.

• A containment barrier preventing chemical spills.

• A process designed to avoid hazardous conditions altogether.

• A manual emergency stop button used by an operator.