Control Hazard at Source Set 1

What was the direct cause of the unpleasant odor incident reported between July and October 2022?

• Leakage from chemical storage tanks

• Sulfur release from flaring and off-spec wastewater

• Faulty air conditioning system

• Improper use of cleaning chemicals

Which of the following symptoms were commonly reported by affected workers during the unpleasant odor incident?

• Nausea and vomiting

• Cough and sore throat

• Fever and chills

• Rash and skin irritation

Major fires at PIC (Tier 1 Process Safety Incidents) can be prevented or minimized if __________ actions are conducted.

• delayed

• corrective

• early intervention

• emergency response

Which of the following was listed as a precondition for the major fire at interconnecting pipeline incident?

• Poor air circulation

• Delayed shutdown of cooling systems

• Unauthorized access to a restricted zone

• HDPE Unit Shutdown during Operation

What does “Control Hazard at Source” primarily aim to do?

• Delay the hazard until a full team is available

• Stop the issue after an accident has occurred

• Stop the issue at an early stage before escalation

• Let the hazard escalate to observe outcomes

Which of the following is considered an early warning sign of a potential hazard?

• Explosion

• Mass evacuation

• Slight gas release

• Oil spill into sea water

Which sequence represents a correct escalation path for a leak incident?

• Traffic Violation → Explosion

• Slight Leak → Minor Fire → Explosion

• Gas Detector Alarm → System Shutdown → Normal Operation

• Slight Leak → Odor Complaint → Dismissal

Below are Common hazards at PIC except

• Hot surface & hot condensate/steam

• Cyber security

• Moving vehicle

• High Voltage Electricity

What is a key control measure for addressing a 'High High-Level Alarm' or 'Process upset'?

• Gas detector activation workflow

• Odor workflow

• Alarm management and competency training

• Emergency drill

What step is common in the immediate response to both toxic gas release and fire/explosion?

• Deploy vacuum truck

• Place spill kit at source

• Inform nearby OPC & stakeholders

• Conduct odor surveillance