Engine General (Supplementary) USCG Question #790 (Set 15)

What is the length of the stud used to secure the packing gland shown in the illustration? GS-0012

USCG Exam Illustration GS-0012
USCG Examination Diagram: Illustration GS-0012
Official USCG Answer & Rule Citation

Correct Answer: Option D — 2 1/2 inches

The packing gland stud length is determined by the pump's mechanical design specifications. Based on the provided illustration GS-0012, the stud length required to secure the packing gland is 2 1/2 inches. Accurate hardware selection is essential for maintaining proper gland compression and preventing excessive leakage from the pump shaft.

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