MEK Exit Exam • Set 4 Question 25 of 30
Before starting arc welding you must:
✓
Direct Answer
Option C: Connect the earth Clamp to the work piece
For a safe arc, the earth clamp must be securely connected directly to the workpiece to ensure the electrical circuit is complete and to prevent stray current arcs.
All Options
A
Connect the welding cable to the earth clamp
B
Extend the welding cables
C
Connect the earth Clamp to the work piece
(Correct Answer)
D
Connect the electrode holder to the earth clamp
Detailed Explanation & Context
For a safe arc, the earth clamp must be securely connected directly to the workpiece to ensure the electrical circuit is complete and to prevent stray current arcs.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Marine Engineering Knowledge (MEK).
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