Question 62 of 90 refresher Exam
Fire hydrant valves on a crude oil tanker shall be isolated from the crude oil washing system by
A A) Spade blanks
Correct
B B) Face blanks
C C) Non-return valves
D D) Automatic closing valves
Answer & Explanation
The correct answer is Option A: A) Spade blanks.
This question is frequently asked in the DG Shipping exit exams for maritime courses. Practicing similar questions in the interactive simulator helps improve recall and exam success.