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Category: Tanker

Free Water
Tanker

Free Water

adminOctober 17, 2025October 17, 2025

How does water get into crude oil cargo tanks? Extraction The starting point when considering sources and mechanisms for the…

Tanker

Crude Calculations

adminSeptember 27, 2025September 27, 2025

Free water. The measured volume of water in a tank not in suspension with the liquid in the tank at…

PORTABLE SUBMERSIBLE PUMPS
Tanker

PORTABLE SUBMERSIBLE PUMPS

adminSeptember 20, 2025September 20, 2025

Check that all hoses and connections are in satisfactory condition and that there are no leaks or soft spots. The…

CARGO TANK VAPOUR TIGHTNESS TEST
Tanker

CARGO TANK VAPOUR TIGHTNESS TEST

adminSeptember 20, 2025September 20, 2025

Code of Federal Regulations (CFR) requires tanker vessels to issue a vapour tightness certificate with the code.  This is to…

SLOP TANK AND CARGO TANK HEATING
Tanker

SLOP TANK AND CARGO TANK HEATING

adminSeptember 17, 2023September 17, 2023

Both the port and starboard slop tanks are fitted with internal grid type heating coils. The port slop tank has…

OPERATION OF THE INERT GAS SYSTEM
Tanker

OPERATION OF THE INERT GAS SYSTEM

adminSeptember 17, 2023September 17, 2023

The flue gas system main control panel is situated in the CCR. This panel contains  the programmable  controller  pushbuttons  etc,…

Inerting Cargo Tanks
Tanker

Inerting Cargo Tanks

adminSeptember 14, 2023September 14, 2023

System explained basis my present vessel. INITIAL INERTING Under normal operating conditions the vessel is kept totally inerted. However, after…

Ship Shore Interface (Cargo operations-Tankers)
Tanker

Ship Shore Interface (Cargo operations-Tankers)

adminMay 13, 2023May 13, 2023

SUPERVISION AND CONTROL Within the tanker trade, the ship/shore interface plays a vital part in operations. It is an area…

The Flammability Diagram
Tanker

The Flammability Diagram

adminMay 13, 2023May 13, 2023

a)       Petroleum is highly flammable (fuel) b)       Sources of ignition may be present at various locations. (Ignition) c)       Oxygen…

Oil Spill On Deck (Tankers)
Tanker

Oil Spill On Deck (Tankers)

adminMay 11, 2023May 11, 2023

Small spills can occur during routine transfer operations on the ship, i.e. during loading, discharging, ballasting, bunkering etc. If an…

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Blog is primarily for candidates appearing for certificate of competency exams but such is the detail that while being equally suitable for the beginner, it is also reference work for experienced seaman, and the layout and style of blog make it suitable for shipboard training where practical experience can be allied to the theoretical approach.

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