USCG USCG General Eng
Set 2 • Question #260 of 498
Launch Interactive Practice Room The hydraulic oil most likely to thin out when hot and thick when cold would have a viscosity index of __________.
A
20
✓ Correct Answer
B
40
C
60
D
80
USCG NMC Regulatory Explanation
In USCG Marine Engineering General Subjects, for engine room systems involving 'The hydraulic oil most likely to thin out when hot and thick when cold would have a viscosity index of', the standard operating requirement is: '20'.
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