Skip to content

Knowledge Of Sea

We will keep you updated

  • Home
  • Video
  • Chartering Terms
  • Rule of the Road (COLREG)
    • Nautical Flags
    • Rule of the Roads – CARDS
  • Tanker Definitions
  • Downloads
  • ORAL NOTES
    • ORAL NOTES- 2ND OFFICER
    • ORAL NOTES- CHIEF MATE
  • About Me
  • Exit Exam
    • FPFF exit exam questions and answers
    • EFA exit exam questions and answers
    • BST exit exam questions and answers
    • AFF DG Shipping exit exam question and answers
  • Toggle search form

Category: Navigation

Precautions polar water

Posted on August 25, 2024August 25, 2024 By admin No Comments on Precautions polar water
Precautions polar water

In general, during ice ship navigation, an ice pilot and ice breakers are provided to help commercial vessel operations by safely leading the vessels through the ice but there are a few other measures to be followed by the vessel’s crew during ice ship navigation. The ship should avoid any alternate available route at all…

Read More “Precautions polar water” »

Navigation

GMDSS equipment power

Posted on August 25, 2024August 25, 2024 By admin No Comments on GMDSS equipment power
GMDSS equipment power

Source of GMDSS equipment power from following :- GeneratorEmergency generatoremergency battery The GMDSS battery is usually in the range of 200 Ah which is required to give 24V. Testing and Checking of GMDSS Batteries Required by SOLAS GMDSS batteries constitute an important tool which provides power supply for GMDSS equipment operation in case of emergency….

Read More “GMDSS equipment power” »

Navigation

Weather associated with cold fronts

Posted on August 24, 2024August 24, 2024 By admin No Comments on Weather associated with cold fronts
Weather associated with cold fronts

A cold front normally occurs when a huge mass of cold and chilly air meets a mass of warm air, and the chilly air starts advancing on the warm air. As soon as the cold front passes, the weather temperature starts becoming cooler and can drop by 4 degrees Celsius or even more. It can…

Read More “Weather associated with cold fronts” »

Navigation

Tidal Calculations

Posted on June 24, 2024June 24, 2024 By admin No Comments on Tidal Calculations
Tidal Calculations

Many of us are quite scared of solving the tide problems especially calculations involving Secondary Ports Lets first handle calculation of tide at Standard Ports 1.Find height of tide at Bombay at 1200 hrs on 15th Aug 1999 Bombay 15th August 1999 TIDE TIME HEIGHT HW 0212 4.0 LW 0720 1.0 HW 1438 4.4 LW…

Read More “Tidal Calculations” »

Navigation

Celestial Fix Best Practices – 2

Posted on June 23, 2024June 23, 2024 By admin No Comments on Celestial Fix Best Practices – 2
Celestial Fix Best Practices – 2

Star finder ? How to use it? Star finder is used to choose suitable stars for celestial observations and for identifying stars.  Criteria for choosing  the stars should be as follows For identifying stars just get the azimuth of star and calculate LHA aries and latitude is known so use suitable template and put the…

Read More “Celestial Fix Best Practices – 2” »

Navigation

Best practice for celestial fix

Posted on June 18, 2024June 18, 2024 By admin No Comments on Best practice for celestial fix
Best practice for celestial fix

LOP Separated by 15° LOP Separated by 90° Azimuths Separated by 120° Azimuths Separated by 60°

Navigation

GMDSS

Posted on September 18, 2023September 18, 2023 By admin No Comments on GMDSS
GMDSS

The Global Maritime Distress and Safety System (GMDSS) is an international system relating to all vessels over 300 gross tonnes and all passenger vessels engaged on international voyages, irrespective of tonnage. It provides comprehensive communications for distress, urgency and safety operations in the terrestrial and satellite services. It specifies methods to be used to enable…

Read More “GMDSS” »

Navigation

ECDIS MANAGEMENT

Posted on May 27, 2023May 27, 2023 By admin No Comments on ECDIS MANAGEMENT
ECDIS MANAGEMENT

Compliance of ECDIS system ECDIS SOFTWARE VERSIONS ECDIS that is not updated to the latest version of the IHO Standards may not meet the chart carriage requirements as set out in SOLAS regulation V/19.2.1.4. Below is the list of latest ECDIS software versions available for various make and models. Please check the ECDIS software version…

Read More “ECDIS MANAGEMENT” »

Navigation

Working of Hygrometer & Stevenson’s Screen

Posted on February 25, 2023February 25, 2023 By admin No Comments on Working of Hygrometer & Stevenson’s Screen
Working of Hygrometer & Stevenson’s Screen

Description: A hygrometer is a an easy to use tool for measuring the amount of humidity in the atmosphere and dew point temperature of a parcel of air. The most common type of hygrometer found on board ships is a dry and wet bulb type hygrometer. It comprises of a pair of basic thermometers fixed…

Read More “Working of Hygrometer & Stevenson’s Screen” »

Navigation

Bridge Watchkeeping

Posted on June 20, 2021June 20, 2021 By admin No Comments on Bridge Watchkeeping
Bridge Watchkeeping

Watchkeeping during ocean passages Watchkeeping during ocean passages will require all the activities related to performing a navigational watch as discussed previously. In addition, priority is given to the following Lookout During ocean passages, the principle threat to a vessel is the risk of collision. It of utmost importance that an approaching vessel is detected…

Read More “Bridge Watchkeeping” »

Navigation

Posts pagination

Previous 1 2 3 … 13 Next

Categories

  • Bulk Carrier
  • Cargo handling
  • Engine Room Operations
  • LSA & FFA
  • Maritime Industry
  • Maritime Law
  • Merchant Shipping
  • Navigation
  • Rules and Regulation
  • Ship Construction
  • Shipboard operation
  • Stability
  • Tanker
  • Uncategorized

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.

Recent Comments

  • capt on Radar Best Practice -ARPA
  • admin on Dry Docking (Theory & Numericals)
  • Stelios Karamplakas on Dry Docking (Theory & Numericals)
  • Farid OMARI on Demurrage
  • admin on Tanker Cargo Calculations

Copyright © 2018 knowledge of sea – All Rights Reserved.

If you’re unsure about what type of training will work best for you, just tell us a little more about your needs. We will get back to you as soon as possible with the answers you need!

All answers will be from sailor mouth, who is practically working on board.

January 2026
S M T W T F S
 123
45678910
11121314151617
18192021222324
25262728293031
« Dec    

Copyright © 2026 Knowledge Of Sea.

Powered by PressBook WordPress theme