Shipmare

Q4: Which of the following is a description of the function of periphery cleats around a hatch cover?
A: They provide horizontal restraint, control the cross-joint seal compression and ensure the edges of the hatch cover panels at the cross joint remain firmly pressed or held together and that the cross joint seal rubber remains properly…[Read more]

All related information has been moved to the shared forum:

Ship Construction & Drydocking

All related information has been moved to the shared forum:

Ship Construction & Drydocking

2022 April batch (exam in Sep)

Section A
1. 4-ram steering gear: operation, single failure
2. LVDT/EP convertor
3. Fire detection: 2 engineering principles for addressable system, problems for fitting sensors in E/R, how to test, why can’t we have only 1 type of Fire Detector in E/R
4. ECA: What is ECA, procedure for entering ECA, contents of…[Read more]

2022 April batch (exam in Sep)

1. Modern Holding Down bolt arrangement
2. Main Engine performance
3. F.O Analysis
4. Turbocharger pulse type VS constant type
5. Oil Mist Detector
6. Scuffing with regards to piston and liner
7. Fuel injection pump VIT
8. Crosshead bearing failure, docs and causes, prevention
9. Boiler water treatment

Rudder area is usually between 1/60th to 1/70th of the vessel’s Length X Draught.
Ratio of Depth to Width (aspect ratio) is 2:1.

3 TYPES OF RUDDER:

Unbalanced rudder: Whole rudder area aft of stock

Components:
– Sole piece is a forging to form lower gudgeon supporting bearing pintle, and connect to aftermost keel plate
– Sternpost is formed…[Read more]

1. internal surface to be clean and no tools and rags left inside
2. All openings of mountings cleaned properly
3. Mountings to be fixed back with new gaskets 
4. Manhole, hand hole , furnace are closed
5. Ensure vent, alarms and pressure gauge connection valves are open
6. Ensure all drain valves are shut
7. Switch on power on boiler panel and put all…

[Read more]

Planning 

1. 1. 1. 1. 1. Planning to be done and discuss with technical super.
            2. Risk assessment to be done
            3. Permit to work obtain
            4. Check for necessary tools and spares
            5. Check manual for special instruction and check past records
            6. Next port steam consumption obtain
            7. Personal involve to be briefed

Shutting down for survey

…

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1. List some of the different class notations and their significance. Give an example combining at least five different class notations (Hull) and explain the meaning. (Use Lloyd’s Register of Shipping notations)
A ship’s class is denoted by hull & machinery ‘class notations’. Classification societies may use different systems of notatio…[Read more]

What are the parts of the ship that is examined by a surveyor during an annual surveyor?
Annual surveys are to be held concurrently with statutory annual or other relevant statutory surveys, whenever practicable. At the survey the surveyor is to examine the followings:
a) The condition of all closing appliances covered by the conditions of…[Read more]

1. Who are the assigning authorities for assignments of freeboards and issue Load line Certificate in Singapore?
In Singapore, MPA or MPA approved 9 classification societies are the assigning authorities for freeboard under the authority of MPA. Approved 8 classification societies are as follows- America Bureau of Shipping (ABS). Lloyds Register…[Read more]

1) Describe the aid of a sketch a typical watertight door.

Water tight doors
There are three classes of water tight doors.
A) Hinged door
B) Hand operated sliding door.
C) Sliding doors that are powered operated and hand operated.
Features of water tight door
1) water tight doors are fitted on access openings on bulkheads.…[Read more]

1) What is the purpose of subdivision of ships.
– The purpose of subdivision is “To provide the ship into water tight compartments, therefore reducing the risk of sinking, when damaged.”
– Effectiveness depends upon the bulkhead height and spacing.
– It can also prevent the spread of fire to certain extent.

2) List the function of…[Read more]

1) State the purpose of flux and describe its composition.
Flux composition and purpose
– composition of flux varies with different electrodes but it normally consists of composition purpose/effect
1) a combustible material like wood pulp,
– When this burns, carbon monoxide and hydrogen gases will be produced.
– This cloud of gas is…[Read more]

Metallurgy encompasses both the science and the technology of metals; that is, the way in which science is applied to the production of metals, and the engineering of metal components used in products for both consumers and manufacturers.

1) Distinguish between low carbon steel and mild steel based on carbon content.
Low carbon steel (Dead…[Read more]

Credits: MAN B & W xKxxMC series

Crosshead bearing clearance measurement:

Crankpin bearing clearance measurement:

Main bearing clearance measurement:
Main bearing1