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SET - 2 | OCTF Exit Exam Mock Test - Questions and Answers - 2026

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By FPAPK
Published: Jun 10, 2026 at 3:31 pm
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MARINE EXAM
15 min read

BASIC OTFC COURSE

Get ready for your certification with OCTF Mock Test Set 2 (2026), specially prepared for seafarers who want to strengthen their knowledge before appearing for the exit examination. This practice set covers important topics commonly asked during tanker training assessments.

The Basic Training for Oil and Chemical Tanker Cargo Operations (OCTF) course introduces essential concepts such as cargo handling, tanker safety, pollution prevention, hazard awareness, and emergency response procedures. It helps seafarers build the knowledge required for safe tanker operations.

This mock test includes 30 carefully selected MCQs with answers, giving you a practical way to evaluate your understanding and improve your confidence. Regular practice with updated questions can help you perform better in the final assessment.

Start solving OCTF Exit Exam Mock Test Set 2 – 2026 today and take one step closer to successfully completing your tanker training certification.

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

MCQ Practice Questions (30)

1

What is ALARP ?

a As low as reasonably practicable
b As large as represented particles
c As low as reading practice
d As little as represented portion
2

The important series of hydrocarbons found in almost every petroleum mixture from any part of the world is

a Paraffine
b Aromatic
c Asphaltene
d Napthene
3

Back flow of inert gas is prevented by:

a An isolating valve
b The deck water seal
c A valve provided in the scrubber
d The deck mechanical non-return valve
4

A starting interlock in the ODME ensures

a the monitoring equipment is fully operational before commencing the discharge of the oil effluent at sea
b prevents malfunctioning of the system
c that an alarm is given off when the system malfunctions
d stops discharge of the oil effluent when the oil content exceeds 5 part per million
5

Cargo tank fill alarm indicator panels:

a are normally fitted on the bridge and sometimes on deck
b are normally fitted in the engine control room and sometimes on deck
c are normally fitted on the bridge and sometimes in the engine control room
d are normally fitted in the cargo control room and sometimes on deck
6

Which of the following is true about eductors?

a They can be used only when there is a good level of liquid in the tank to be pumped out
b Sea water can be used as drive and crude oil pumped out from the tanks
c They sometimes make high vibrations and even lead to pipeline and gauge damage
d A long preparation is required before eductor can be put to use
7

Tank washings generated from tanks having different incompatible cargoes

a can be collected into the same slop tank and discharged to shore
b should be collected in separate slop tanks and pumped out separately to shore
c can be collected in the pump room bilge and pumped out later
d should be retained in the cargo tank until discharge to shore
8

An inert gas generator burns what oil to generate inert gas ?

a Crude oil
b Heavy oil
c Diesel oil
d Gas oil
9

What is the purpose of tank coating?

a to add strength to cargo tanks
b to carry heated cargo
c to prevent corrosion in cargo tanks
10

What is Clingage?

a Solid deposits on the walls of a tank after the bulk of the oil has been removed
b Oil remaining on the walls of a pipe or on the internal surfaces of tanks after the bulk of the oil has been removed
c Solid deposits on the upper frames within a tank that remains after bulk of the oil has been removed
d The clearance of the oil carrying pipe from the tanktop at the bottom of the oil tank
11

The lowest temperature at which the liquid remains a fluid is called the:

a The flow point
b The pour point
c The melting point
d The Liquefaction point
12

A restricted tank gauging system

a Allows limited amounts of vapour to escape
b Does not allow vapour to escape
c Uses a float gauge
d Does not use an ullage tape
13

Crude oil washing:

a is done with portable tank washing machines
b is done with pressurised crude oil
c has 5 stages
d is done at the halfway stage of the discharging cycle
14

Presence of ……………….. in fuel oil leads to abrasive wear in fuel pumps and cylinder liners.

a Ash
b Vanadium
c Alumino silicates
d water
15

In paraffin's atomic structure, the valence of all the carbon atoms is satisfied by single bond. Each carbon atom is connected to each other carbon atom by a single covalent bond. This hydrocarbon is

a Branched hydrocarbon
b Unsaturated hydrocarbon
c Saturated hydrocarbon
d Linear hydrocarbon
16

Cargo tanks entrances on tankers are:

a Weathertight
b Watertight
c Could be weathertight or watertight
d Neither watertight or weathertight
17

When coating a patch as part of maintenance, the film thickness should be

a 200 to 300 microns
b 300 to 400 microns
c not less than 400 microns
d not more than 200 microns
18

A type 3 chemical tanker is intended to tansport cargoes that have

a Severe environmental and safety hazards
b Apperciably severe environmental and safety hazards
c Sufficiently severe environmental and safety hazards
19

What is the safety margin of tank volume, when calculating filling ratio of a cargo which needs heating during its carriage?

a 5% of the Tank capacity
b 10% of the Cargo capacity
c 2% of the Tank capacity
d 1% of the Tank capacity
20

A liquid is considered to be flammable when the flash point is less than

a 50° F
b 60° F
c 70° F
d 80° F
21

The stretcher for emergency rescue from pump room should be

a available close to the pump room
b kept permanently rigged for hoisting an injured person
c kept in ship's hospital and clearly marked
22

Cargoes with a freezing point higher than the ambient temperature of the ship's trading area will need to be

a Cooled
b Refrigrated
c Heated
d Pressurised
23

What do you understand from the term "Bleed off COW" ?

a The process of pressure testing the COW lines onboard
b The process of diverting part of cargo discharged for reducing rate
c The process of diverting part of cargo discharged for crude oil washing
d The process of draining oil from the COW lines after washing
24

The ring main pipeline system is extensively used on:

a VLCCs
b Crude oil tankers
c Medium range tankers
d Product carriers
25

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
26

The content of cycloparaffins in petroleum may vary

a Up to 60%
b Up to 70%
c Up to 35%
d Up to 50%
27

Chemical tankers carry :

a Crude petroleum
b Products like kerosene
c Noxious liquid substaces
d Clean products
28

Which one of the following is not a piping system found on an oil tanker?

a Ring main system
b Integrated system
c Direct line system
d Free flow system
29

What is the other name used for liquids' freezing or solidification point?

a Boiling point
b Melting point
c Pour point
d Saturation point
30

Which pump must always be primed?

a Centrifugal pump
b Reciprocating pump
c Rotary pump
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Mock Test Info
Course Name BASIC OTFC COURSE
Mock Test 2
Questions 30
Students 1,345
Test Time 15 Minutes
BASIC OTFC COURSE

Mock Test Sets

✓ SET - 1 | OCTF Exit Exam Mock Test - Questions and Answers - 2026
▶ SET - 2 | OCTF Exit Exam Mock Test - Questions and Answers - 2026
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