SET - 10 | OCTF Exit Exam Mock Test - Questions and Answers - 2026

By FPAPK

Published: Jun 22, 2026 at 6:23 am

MARINE EXAM

15 min read

BASIC OTFC COURSE

Improve your exam preparation with OCTF Exit Exam Mock Test Set 10 – 2026, created for seafarers preparing to complete the Basic Training for Oil and Chemical Tanker Cargo Operations (OCTF) course. This practice test helps you revise important subjects covered during tanker safety training.

The OCTF course teaches the fundamentals of cargo handling, tanker operations, pollution prevention, emergency procedures, risk assessment, and safe working practices onboard oil and chemical tankers. These topics are essential for ensuring safe and efficient tanker operations.

This mock test includes 30 carefully prepared multiple-choice questions based on the latest maritime training syllabus and current examination pattern. Regular practice can improve your knowledge, strengthen problem-solving skills, and increase confidence before the final assessment.

Start practicing OCTF Set 10 Questions and Answers – 2026 today and build a strong foundation for your tanker certification while enhancing your professional maritime knowledge.

Practice with 30 questions from the BASIC OTFC COURSE bank. Each question is verified and explained.

MCQ Practice Questions (30)

What is a spark ?

a Spark is an almost instantaneous discharge between two conductors where almost all of the energy in the electrostatic field is converted into heat that is available to ignite a flammable atmosphere.

b Spark is an almost instantaneous discharge between two conductors where almost all of the energy in the electrostatic field is converted into heat that is available to ignite a non flammable atmosphere.

c Sparks can occur during cargo movement and sloshing in an inerted tank

d Occasional Sparks from the main engine exhaust can cause a fire in the drydocks.

While taking on fuel oil, the transfer hose leaks causing a sheen on the water. You should

a apply dispersants to the sheen

b repair the leak with duct tape

c reduce the rate of transfer

d shut down operations

What type of rope is used to support Neil-Robertson stretcher?

a Wire rope

b PVC rope

c Manila rope

Under OPA 90, who is responsible for mobilizing Oil Spill Removal Organization (OSRO), in the event of spill of oil or Noxious liquid Substances?

a Master

b USCG

c Qualified Individual

d Technical Superintendent

In the ‘flow through’ method of ballast water exchange:

a Ballast equal to approximately two times the tank capacity must be pumped through the tank

b Ballast equal to approximately three times the tank capacity must be pumped through the tank

c Ballast equal to approximately four times the tank capacity must be pumped through the tank

d Ballast equal to approximately five times the tank capacity must be pumped through the tank

What does "CRS" stand for?

a Certified radio station.

b Control room section.

c Coast radio station.

An inert gas system is required to be fitted:

a On all tankers of above 20,000 tonnes deadweight

b On product tankers of above 20,000 tonnes deadweight

c On crude oil tankers of above 20,000 tonnes deadweight

d On chemical tankers of above 20,000 tonnes deadweight

Spread loading is a process where:

a One ship tank is loaded using several shore lines

b Several ship tanks are loaded using several shore lines

c Several ship tanks are loaded using a single shore line

d One ship tank is loaded using one shore line

The COW manual has to be approved by :

a Coast guard.

b Shipping company

c Flag state

Oxygen in the atmosphere of the tank is used up when iron is converted into oxides during the corrosion process. What is required prior to entry.

a Copious quantity of fresh air

b Pressurized oxygen pumped

c Space to be ventilated for 24 hours

d Space to have a minimum oxygen level for sustaining life

Tank clingage depends on:

a surface tension only

b cohesive and adhesive forces

c cohesive, adhesive forces and surface tension

d cohesive forces, adhesive forces and the liquids melting point

Specific gravity is used by the American Petroleum Institute (API) to classify various

a Viscosities of oil

b Vapor densities of oil

c Weights of oil

d Volumes of oil

The ISM Code requires work procedures which ensures ________ performance

a Superior

b Profitable

c Safe

d Excellent

The atmosphere in a tank is too lean if it is

a incapable of supporting combustion because the hydrocarbon content is below the LFL (Lower Flammable Limit)

b capable of supporting combustion because the hydrocarbon content is above the UFL (Upper Flammable Limit)

c capable of supporting a fire once started

d not safe for ballasting

The total capacity of the slop tank or tanks should be not less than what percentage of the oil-carrying capacity of the vessel ?

a 3%

b 5%

c 7%

d 10%

Ballast water exchange should be done:

a at least 100 nautical miles from the nearest land and in waters at least 100 metres in depth.

b at least 200 nautical miles from the nearest land and in waters at least 100 metres in depth.

c at least 200 nautical miles from the nearest land and in waters at least 200 metres in depth.

d at least 100 nautical miles from the nearest land and in waters at least 200 metres in depth.

What international regulatory requirements govern management & organization onboard?

a MARPOL

b OPA 90

c STCW

d STCW & the ISM Code of the IMO

What is flammable range ?

a The range in which nothing will burn

b The range in which the oxygen content is too low to cause explosion

c The range in which the oxygen content is too high to cause explosion

d The range of hydrocarbon gas concentrations in air between the lower and upper flammable limits. Mixtures within this range are capable of being ignited and of burning.

When hooking up a cargo hose to your vessel's manifold, you should use a(n) __________.

a international shore connection

b insulating flange or single length of non-conducting hose

c self-contained breathing apparatus

d oxygen analyzer

The preferred type of pollution control for oil spills on the water is(are)

a straw

b booms

c skimmers

d chemical dispersants

Which statement about the pressure in a tank being inerted by an inert gas system is TRUE?

a The maximum pressure permitted is 8 psi.

b A positive pressure should be maintained at all times.

c The pressure must remain within the limits of +5 psi to -1 psi.

Tank bulkheads on a tanker are strengthened using:

a Web frames, transverse webs and stringers.

b Longitudinals, transverse webs and stringers.

c Web frames, transverse webs and gusset plates.

d Gusset plates, transverse webs and longitudinals

Sublimation is the phase transition of a substance:

a From the liquid to the solid phase

b From the solid to the liquid phase

c From to the gas phase to the solid phase

d From the solid to the gas phase

H2S gas is :

a less toxic

b inflammable

c toxic, corrosive and flammable

During transit of avessel if chemical fire occurs, the vessel should :

a Stop and allow other ships to proceed.

b Reduce vessel speed to minimum possible.

c Steer clear off other vessels.

What is cold work ?

a Carrying out work in a cold atmosphere

b Work that cannot create a source of ignition

c Carrying out work on reefer containers

d Work that can be done only in cold temperatures

Sour crude oil ___________.

a contains high quantities of hydrogen sulfide

b is diluted with other products for carriage

c is lighter than other crudes

d is less hazardous to load than other crudes

Of the hydrocarbons found in nature, which is the lighter fraction of hydrocarbons, which can be free or dissolved ?

a Crude oil

b Asphalt

c Refined oil

d Natural gas

Pollution regulations require that each scupper in an enclosed deck area have a

a wooden plug

b soft rubber plug

c two-piece soft patch

d mechanical means of closing

Which of the following is a cofferdam?

a Chain locker

b Pump room on an oil tanker

c Deep tank

d Slop tank on an oil tanker

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Mock Test Info

Course Name BASIC OTFC COURSE

Mock Test 10

Questions 30

Students 1,345

Test Time 15 Minutes

BASIC OTFC COURSE

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SET - 10 | OCTF Exit Exam Mock Test - Questions and Answers - 2026

BASIC OTFC COURSE

MCQ Practice Questions (30)

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What is a spark ?

While taking on fuel oil, the transfer hose leaks causing a sheen on the water. You should

What type of rope is used to support Neil-Robertson stretcher?

Under OPA 90, who is responsible for mobilizing Oil Spill Removal Organization (OSRO), in the event of spill of oil or Noxious liquid Substances?

In the ‘flow through’ method of ballast water exchange:

What does "CRS" stand for?

An inert gas system is required to be fitted:

Spread loading is a process where:

The COW manual has to be approved by :

Oxygen in the atmosphere of the tank is used up when iron is converted into oxides during the corrosion process. What is required prior to entry.

Tank clingage depends on:

Specific gravity is used by the American Petroleum Institute (API) to classify various

The ISM Code requires work procedures which ensures ________ performance

The atmosphere in a tank is too lean if it is

The total capacity of the slop tank or tanks should be not less than what percentage of the oil-carrying capacity of the vessel ?

Ballast water exchange should be done:

What international regulatory requirements govern management & organization onboard?

What is flammable range ?

When hooking up a cargo hose to your vessel's manifold, you should use a(n) __________.

The preferred type of pollution control for oil spills on the water is(are)

Which statement about the pressure in a tank being inerted by an inert gas system is TRUE?

Tank bulkheads on a tanker are strengthened using:

Sublimation is the phase transition of a substance:

H2S gas is :

During transit of avessel if chemical fire occurs, the vessel should :

What is cold work ?

Sour crude oil ___________.

Of the hydrocarbons found in nature, which is the lighter fraction of hydrocarbons, which can be free or dissolved ?

Pollution regulations require that each scupper in an enclosed deck area have a

Which of the following is a cofferdam?

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