HV Exit Exam • Set 7 Question 15 of 30

Sulphur Hexafluoride (SF6) gas in its un-ionized state is fundamentally an exceptional:

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Direct Answer

Option D: Dielectric electrical insulator

SF6 is an outstanding dielectric gas due to its high electronegativity, capturing free electrons to form heavy, immobile negative ions and preventing electrical breakdown.

All Options

Conductor of electricity

Semiconductor

Chemically corrosive reagent

Dielectric electrical insulator (Correct Answer)

Detailed Explanation & Context

SF6 is an outstanding dielectric gas due to its high electronegativity, capturing free electrons to form heavy, immobile negative ions and preventing electrical breakdown.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • High Voltage Safety Officer & Switchgear Operations (HV).

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