USCG USCG General Eng
Set 12 • Question #102 of 498
Launch Interactive Practice Room Lead wrapped flexible packing, rated for temperatures of up to 450°F and shaft speeds up to 1000 RPM, will not be suitable for use with __________.
A
monel metal shafts
B
steel shafts
C
bronze shafts
✓ Correct Answer
D
cast iron shafts
USCG NMC Regulatory Explanation
In USCG Marine Engineering General Subjects, for engine room systems involving 'Lead wrapped flexible packing, rated for temperatures of up to 450°F and shaft speeds up to 1000 RPM, will not be suitable for use with', the standard operating requirement is: 'bronze shafts'.
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