PSSR Exit Exam • Set 6 Question 27 of 30

What is the primary danger of static electricity when refueling or bunkering flammable fuel?

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Direct Answer

Option A: Ignition of fuel vapor at sampling points or hose connections

Bunkering operations generate electrostatic charges through high-velocity fuel flow through hoses. The primary hazard is an electrostatic spark discharging near flammable vapor zones around sampling points or tank connections, potentially causing an explosion.

All Options

Ignition of fuel vapor at sampling points or hose connections (Correct Answer)

Fuel line freezing

Clogging of fuel filters

Incorrect volumetric meter reading

Detailed Explanation & Context

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Personal Safety & Social Responsibilities (PSSR).

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More Questions in PSSR Set 6

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Q1 What is the purpose of Risk Assessment before carrying out non-routine shipboard tasks? Q2 Under MARPOL Annex IV, what is the requirement for discharging sewage from an approved sewage treatment plant into the sea? Q3 What safety device is fitted on gas cylinders to prevent overpressure explosion in a fire? Q4 What precaution must be taken before opening steam lines or boiler blowdown valves? Q5 What color coding is universally used on ships to identify Emergency Fire Fighting Equipment locations? Q6 What precaution is required when storing oxygen and acetylene cylinders in gas welding stations? Q7 What action must a seafarer take if a piece of power machinery exhibits abnormal vibration or strange noise? Q8 Under the Maritime Labour Convention (MLC 2006), what fundamental right is guaranteed to all seafarers? Q9 What safety equipment is required when handling battery banks containing liquid sulfuric acid? Q10 What is the primary danger of using carbon dioxide (CO2) in a fixed engine room fire extinguishing system?