Exam Question
State with reasons, the main purpose of the following:
(a) Bulbous bow (4)
(b) Collusion Bulkhead (4)
(c) Bilge Keels (4)
(d) Sheer (4)
Class 4 (4th Engineer)
SC&S
📅 Aug 2022
Reference Answer
### (a) Bulbous Bow (4 Marks)
**Main Purpose:**
The primary purpose of a bulbous bow is to reduce the ship's wave-making resistance at its service speed, which improves hydrodynamic efficiency. This results in either a higher speed for the same power output or reduced fuel consumption for the same speed.
**Reasons and Principles:**
**Main Purpose:**
The primary purpose of a bulbous bow is to reduce the ship's wave-making resistance at its service speed, which improves hydrodynamic efficiency. This results in either a higher speed for the same power output or reduced fuel consumption for the same speed.
**Reasons and Principles:**
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