Who awards the Deck Officer Class 2 (Chief Mate) Certificate of Competency and what does it qualify you to do?

The Department of Shipping (DoS), Bangladesh, under the Ministry of Shipping, awards the Class 2 (Chief Mate) Certificate of Competency, which qualifies the holder to serve as Chief Mate on seagoing ships of 3,000 gross tonnage or more under STCW Convention Regulation II/2 and Code Table A-II/2.

Is the Class 2 (Chief Mate) examination only multiple-choice?

No. The DoS examination for Class 2 (Chief Mate) consists of separate 3-hour written subject papers, each marked out of 100, plus a separate oral examination, rather than a single multiple-choice test. This free bank focuses on the underlying management-level knowledge with 100 multiple-choice questions to help you revise the core syllabus.

How many questions are in this practice bank and what topics does it cover?

This free bank has 100 multiple-choice questions covering cargo work and stowage, ship stability and stress, navigation and voyage planning, ship handling and manoeuvring, maritime law and regulations, watchkeeping management and bridge resource management, safety and search and rescue, meteorology, and leadership and crew management.

What are the prerequisites for sitting the Class 2 (Chief Mate) examination?

Candidates must already hold a Certificate of Competency as Officer in Charge of a Navigational Watch on ships of 500 GT or more, complete at least 12 months of approved seagoing service as OOW (with at least 6 months on ships of 3,000 GT or more), and hold Proficiency in Medical Care training, in addition to meeting DoS eligibility and training requirements before the written and oral examinations.

What pass mark do I need for the Class 2 (Chief Mate) written examination?

DoS has not published one fixed overall percentage pass mark; each written subject paper is marked out of 100 and candidates are generally required to pass each subject individually, alongside a separate oral examination. Confirm the current subject-wise pass requirements with DoS or your maritime training institute.

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Sample BD Deck Officer Class 2 (Chief Mate) Practice Questions

Try these sample questions to test your BD Deck Officer Class 2 (Chief Mate) exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under the IMDG Code, which class of dangerous goods covers flammable liquids?

A.Class 2

B.Class 3

C.Class 5

D.Class 8

Explanation: Class 3 of the IMDG Code covers flammable liquids, defined broadly as liquids with a flash point not exceeding 60°C (closed cup test). Correct classification drives stowage, segregation, and firefighting response aboard ship.

2Under the IMDG Code segregation table, when two dangerous goods classes must be kept "separated from" each other, what does this segregation term require compared to "away from"?

A.It is a weaker requirement than "away from", allowing the goods to be stowed in the same hold

B.It is a stronger requirement than "away from", requiring greater physical separation such as an intervening deck or bulkhead

C.It applies only to goods carried on deck and never to goods carried below deck

D.It means the goods cannot be loaded on the same voyage under any circumstances

Explanation: The IMDG Code segregation terms form an escalating scale: "away from", "separated from", "separated by a complete compartment or hold from", and "separated longitudinally by an intervening complete compartment or hold from". "Separated from" requires more distance and an intervening structural barrier than the lesser "away from" requirement.

3Under the IMDG Code, whose responsibility is it to provide the dangerous goods declaration for a consignment before shipment?

A.The ship's Chief Mate

B.The port state control officer

C.The shipper

D.The classification society

Explanation: IMDG Code Chapter 5.4 places the duty on the shipper to provide a dangerous goods transport document (declaration) certifying that the consignment is properly classified, packed, marked, labelled, and in proper condition for carriage. The carrier relies on this declaration to plan stowage and segregation.

4Under the IMSBC Code, a Group A cargo is one that:

A.Possesses a chemical hazard only, with no risk of liquefaction

B.May liquefy if shipped with a moisture content in excess of its transportable moisture limit

C.Possesses no significant hazard beyond the physical properties of bulk cargo

D.Is only ever carried on dedicated gas carriers

Explanation: IMSBC Code Group A cargoes are those which may liquefy if their moisture content exceeds the Transportable Moisture Limit (TML), leading to cargo shift and loss of stability. Iron ore fines and some mineral concentrates are classic Group A examples.

5Before loading a Group A solid bulk cargo, the Chief Mate must confirm that the cargo's actual moisture content is below its:

A.Flow Moisture Point (FMP)

B.Transportable Moisture Limit (TML)

C.Angle of repose

D.Bulk density

Explanation: The Transportable Moisture Limit (TML) is the maximum moisture content considered safe for carriage and is normally set at 90% of the Flow Moisture Point. If the certified moisture content exceeds the TML, the IMSBC Code prohibits loading the cargo.

6Under the International Grain Code, what is the maximum angle of heel permitted due to a shift of the grain cargo?

A.8 degrees

B.10 degrees

C.12 degrees

D.15 degrees

Explanation: The Grain Code sets 12 degrees (or the angle at which the deck edge becomes immersed, whichever is less) as the maximum heel resulting from a transverse shift of grain. This, together with residual dynamic stability and a minimum corrected GM, defines a grain ship's stability criteria.

7Under the International Grain Code, what is the minimum metacentric height (GM), corrected for free surface, required for a ship carrying bulk grain?

A.0.15 metres

B.0.30 metres

C.0.50 metres

D.1.00 metre

Explanation: The Grain Code requires an initial GM, after correction for free surface effects, of not less than 0.30 metres throughout the voyage. This minimum is one of the three key stability criteria for grain carriage, alongside the 12-degree heel limit and the residual dynamical stability area requirement.

8On a tanker, what is the primary purpose of maintaining an inert gas system in operation during cargo discharge and tank cleaning?

A.To increase cargo temperature for easier pumping

B.To keep the oxygen content in cargo tanks below the level that supports combustion

C.To reduce the density of the cargo for faster loading rates

D.To improve the accuracy of ullage measurements

Explanation: Inert gas systems supply gas (typically flue gas or nitrogen) with an oxygen content low enough, generally below 8% by volume, to prevent an explosive atmosphere from forming in cargo tanks as vapour space conditions change during loading, discharge, and tank cleaning.

9What is the main purpose of Crude Oil Washing (COW) during tanker discharge?

A.To wash cargo tanks using seawater to remove residual sludge for disposal ashore

B.To wash cargo tanks using jets of the crude oil cargo itself to reduce clingage and residual oil retained on board

C.To flush cargo lines with fresh water before loading a new grade of oil

D.To dilute high-viscosity crude with lighter distillate for easier pumping

Explanation: Crude Oil Washing uses high-pressure jets of the crude oil cargo itself, discharged through fixed tank-washing machines during discharge, to break down and wash out sludge and wax clinging to tank surfaces. This reduces the oil retained on board (ROB) and cuts the pollution and slop generated compared to seawater washing.

10What is the purpose of an approved Cargo Securing Manual (CSM) carried on board a cargo ship?

A.It records only the ship's fuel consumption during cargo operations

B.It provides securing arrangements, equipment strengths, and standards for the transport units and cargoes the ship is approved to carry, in accordance with the CSS Code

C.It replaces the need for a separate stability booklet

D.It is required only on ships that carry containers

Explanation: The Cargo Securing Manual, required under SOLAS Chapters VI and VII and developed in line with the Code of Safe Practice for Cargo Stowage and Securing (CSS Code), details approved securing arrangements, lashing equipment, and maximum securing forces for the specific ship and its intended cargoes.

About the BD Deck Officer Class 2 (Chief Mate) Practice Questions

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