HV Exit Exam • Set 3 Question 19 of 30
In the arc extinction process using the high resistance method:
✓
Direct Answer
Option B: Arc resistance is increased with time
The high resistance method progressively increases the arc resistance by lengthening, cooling, and splitting the arc until the system voltage is insufficient to maintain the arc.
All Options
A
Arc resistance is decreased with time
B
Arc resistance is increased with time
(Correct Answer)
C
Arc resistance remains strictly constant
D
Arc resistance is reduced to zero
Detailed Explanation & Context
The high resistance method progressively increases the arc resistance by lengthening, cooling, and splitting the arc until the system voltage is insufficient to maintain the arc.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • High Voltage Safety Officer & Switchgear Operations (HV).
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