HV Exit Exam • Set 1 Question 2 of 30
What is the primary hazard of working on High Voltage marine equipment compared to Low Voltage?
✓
Direct Answer
Option C: Severe electric arc flash explosion, high-energy blast, and arcing across air gaps
High Voltage can ionize air and jump across gaps, creating explosive arc flashes with temperatures exceeding 10,000°C.
All Options
A
Magnetic tool attraction
B
Low sound
C
Severe electric arc flash explosion, high-energy blast, and arcing across air gaps
(Correct Answer)
D
Slightly warm wires
Detailed Explanation & Context
High Voltage can ionize air and jump across gaps, creating explosive arc flashes with temperatures exceeding 10,000°C.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • High Voltage Safety Officer & Switchgear Operations (HV).
Advertisement
Practice Full HV Set 1
Test yourself with 30 interactive questions, live timer, and instant score.