PSCRB Exit Exam • Set 4 Question 26 of 30
What is the maximum allowable lowering speed of a fully loaded lifeboat under gravity davits?
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Direct Answer
Option A: Calculated by formula S = 0.4 + (0.02 x H), where H is height above waterline
LSA Code regulates gravity davit lowering speeds using the mathematical formula S = 0.4 + (0.02 x H), restricting descent velocity relative to the distance above the waterline to prevent structural damage.
All Options
A
Calculated by formula S = 0.4 + (0.02 x H), where H is height above waterline
(Correct Answer)
B
10 meters per second
C
0.1 meters per second
D
Unlimited speed
Detailed Explanation & Context
LSA Code regulates gravity davit lowering speeds using the mathematical formula S = 0.4 + (0.02 x H), restricting descent velocity relative to the distance above the waterline to prevent structural damage.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Proficiency in Survival Craft and Rescue Boats (PSCRB).
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