USCG USCG Motor
Set 1 • Question #12 of 382
Launch Interactive Practice Room Where is a fusible plug installed on a Scotch or auxiliary boiler?
A
At the shell approximately 1 1/2 inches (3.8 cm) below the normal waterline.
B
At or near the center of the crown sheet of the combustion chamber.
✓ Correct Answer
C
In the furnace approximately 1 1/2 inches (3.8 cm) below the normal waterline.
D
In the furnace not more than 1 inch (2.54 cm) below the lowest permissible water level.
USCG NMC Regulatory Explanation
In USCG Motor Plants (Diesel Engineering), regarding 'Where is a fusible plug installed on a Scotch or auxiliary boiler', the correct operational principle is: 'At or near the center of the crown sheet of the combustion chamber.'.
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