cat60y

Checklists and past questions here!

Checklists and past questions here!

Seamanship Techniques

Seamanship exam

International Regulations for Preventing Collisions at Sea

COLREG part 1

COLREG part 2

COLREG Annex

Guidelines

8.1 NAVIGATION

For all ships: 👌👇

The following criteria are recommended for passenger and cargo ships:

01. The area under the righting lever curve (GZ Curve) should not be less than 0.055 meter-radians up to θ=30° angle of heel and not less than 0.09 meter-radians up to θ=40° or the angle of flooding θf* if this angle is less than 40°.

02. Additionally, the a…[Read more]

https://www.lloydsmaritimeacademy.com/

View post on imgur.com

View post on imgur.com

View post on imgur.com

The purpose is to prevent the following 3 problems:

1) Scale
Produced from hard waters when excessive make-up is required and results in efficiency loss due to drop in heat transfer.

2) Corrosion
Usually in the form of general wastage, but pitting, crevice corrosion, galvanic corrosion, stress corrosion and erosion can also occur. The products…[Read more]

What is COL ??
Area between two high pressure and two low pressures situated alternatively.
Instability – thunderstorms
Stable – radiation fog/ advection fog
– Light variable winds but not for long
– Sudden change of weather is likely
– Relative humidity is fairly high and lightening may be seen
– Thunderstorms frequently associated with a col.

How do you check the reliability of Chart?

– date of chart printing
– inspection of source diagram
– hydrographic authority carrying out the survey
– check edition date
– check scale of the chart
– dotted lines means not thoroughly surveyed
– magnetic variation

Edition no./ latest corrections applied

Frontal depression/ mid latitude depression/
– cold air from polar region meets warm air from subtropics
– Low pressure area formed at the boundary between two different air masses.
– Occurs in middle or high latitudes
– warm air either travels faster than cold air or both air masses travel in opposite directions
– unsettled weather condition…[Read more]

FW tank cleaning(How to do the lime wash).
1. Risk assessment as per coswp
2. Make the tank empty
3. Open and ventilate thoroughly
4. Check the atmosphere and issue entry permit
5. Thoroughly clean by superchlorination with 50 ppm chlorine solution dissolved in fresh water
6. Remove sediment and dirty water
7. Continue ventilation…[Read more]

What is PSC and their job ?
What is port state control & purpose of port state control , differentiate b/w port state &
flag state + under what regulation port state is authorized to inspect a vessel.

Under Port State Control (PSC), inspection of ships in port would be taken by Port State Control Officer (PSCO). Detention of the ship is the last…[Read more]

fire safety systems and appliances,
life-saving appliances and arrangements except radio installations, the shipborne navigational
equipment, means of embarkation for pilots and other equipment to which chapters II—1, II-2, III and V.
The fire control plans, nautical publications, lights, shapes, means of making sound signals and distress s…[Read more]

a complete inspection of the structure, machinery and equipment.This survey shall be such as to ensure that the arrangements, materials, scantlings and workmanship of the structure, boilers and other pressure vessels, their appurtenances, main and auxiliary machinery including steering gear and associated control systems, electrical…[Read more]