Master <24 Ship Knowledge Assessment Online

Welcome to your Master 24 Ship Knowledge Assessment Online

Student Assessment Instructions

1. This is a closed book Assessment.

2. The video link between the student and the supervisor is to remain on throughout the assessment.

3. All notes, books and mobile phones are to be removed from the table.

4. Mobile phones are to be turned off and not used during the assessment.

5. Students should read each question carefully before answering.

6. All questions are to be answered.

7. No communication is permitted other than with the Assessment Supervisor.

8. No student may leave the room for the duration of the Assessment.

9. When instructed you may commence the Assessment.

10. To pass, you must obtain a 70% or higher mark.

Assessment Date
Student Name
Student Phone No.

1. (10 MARKS)

a. On a separate sheet of paper - Sketch and label a transverse section of a metal vessel

b. Explain the cause of panting and how the vessel structure accommodates these stresses.

2. (10 MARKS)

Describe the maintenance required for the following structures. State how they are made water tight.

a. Hatch lids

b. a Porthole with broken glass

c. Ventilator openings

3. (10 MARKS)

State the major advantages and disadvantages in the use of aluminium and steel in the construction of a vessel.

4. (10 MARKS)

a. On a separate sheet of paper - Sketch and label a hydraulic steering arrangement for a vessel.

b. List the maintenance required

c. On a separate sheet of paper - Sketch and describe a typical EMERGENCY steering arrangement on a 20 metre commercial vessel.

5.  (10 marks)

Define the following: (sketches may be used - on a separate sheet of paper)

a. The Law of Floatation

b. Draft (or draught)

c. Longitudinal Centre of Floatation

d. Centre of Buoyancy

e. Metacentre

f. Synchronisation

g. Flare

h. Stable equilibrium

i. Reserve buoyancy

j. Camber

6.  (10 MARKS)

a. On a separate sheet of paper - Draw transverse sketches of a STABLE vessel in both the upright and heeled condition. Show all lines of force.

Indicate the centre of buoyancy, centre of gravity, metacentre and righting lever.

b. Compare the rolling period of a STIFF and TENDER vessel. Explain the advantages and disadvantages of each condition.

Explain the factors affecting the roll period of a small vessel

7.  (10 MARKS) 

a.  On a separate sheet of paper - With the aid of sketches, explain how a vessel’s Centre of Gravity and centre of buoyancy are affected, when a weight on board the vessel is lifted vertically clear of the deck by means of the vessel’s crane or boom.

b. State the cause of a loll and how it may be corrected.

c. Will a vessel have a greater draught in salt or fresh water? Explain the reason for your answer.

8. (10 MARKS)

a. Explain the importance of keeping scuppers and freeing ports clear of obstructions when a vessel is at sea.

b. i. Explain why it is necessary to have the stability booklet reworked for additions or alterations to a vessel

ii. During a voyage you consume 1000 litres of fuel situated low in the vessel. Explain the effect on the vessel’s stability.

9. (10 MARKS)

a. On a separate sheet of paper - Sketch and label a bilge and fire pumping system incorporating a valve manifold & deck wash for a vessel with 3 watertight compartments. Explain how backflooding into watertight areas is prevented.

b. Explain the effect on the stability of a small vessel that has been bilged in the rear water tight compartment.

10. (10 MARKS)

Define the following terms:

a. i.  Light displacement

ii. Loaded displacement

iii. Dead weight tonnage

iv. List

v. Heel

b. On a separate sheet of paper - Sketch and label a typical fuel tank showing all major components.

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