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

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By FPAPK
Published: Jun 09, 2026 at 11:58 am
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MARINE EXAM
15 min read

BASIC OTFC COURSE

Prepare for your tanker certification with OCTF Mock Test Set 1, designed for seafarers who want to improve their knowledge before appearing for the final assessment. This practice set helps you review important concepts covered in the latest maritime training syllabus.

The Basic Training for Oil and Chemical Tanker Cargo Operations (OCTF) course provides essential knowledge of tanker safety, cargo handling procedures, pollution prevention, hazard awareness, and emergency response. It is a mandatory STCW course for crew members serving on oil and chemical tankers.

This mock test includes 30 carefully selected multiple-choice questions based on the latest training standards and the 2026 exam pattern. Regular practice will strengthen your understanding, improve your confidence, and increase your chances of successfully passing the OCTF Exit Exam.

Start solving OCTF Set 1 Questions and Answers today and enhance your skills in safe oil and chemical tanker cargo operations while preparing for your maritime certification.

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

MCQ Practice Questions (30)

1

Pump room bilge high level alarm should activate in :

a CCR
b ECR
c ECR , CCR and navigation bridge
d Chief officer's cabin
2

Tanks of tankers do not exceed:

a 0.1 of ship’s length
b 0.15 of ship’s length
c 0.2 of ship’s length
d 0.25 of ship’s length
3

The ring main pipeline system is extensively used on:

a VLCCs
b Crude oil tankers
c Medium range tankers
d Product carriers
4

Cargo tanks entrances on tankers are:

a Weathertight
b Watertight
c Could be weathertight or watertight
d Neither watertight or weathertight
5

Framo deepwell pumps are driven by :

a steam turbines
b electric motor
c hydraulic motor
d direct drive with diesel engine
6

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

a Crude oil
b Heavy oil
c Diesel oil
d Gas oil
7

The most common type of cargo pumps found on chemical tankers are

a centrifugal pumps
b deep well pumps
c vane pumps
d gear pumps
8

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
9

Chemical tankers carry :

a Crude petroleum
b Products like kerosene
c Noxious liquid substaces
d Clean products
10

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
11

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
12

A thermoelectric detector:

a Uses a heat sensor
b converts heat to electrical energy
c detects a rise in tempetrature
d uses a fixed temperature stop
13

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
14

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%
15

The pipeline system that has valves fitted on bulkheads is called:

a The direct line system
b The free flow system
c The ring main system
d The free line system
16

What is the purpose of scrubber in IG plant ?

a only to cool the flue gas
b only to clean the flue gas
c To cool and also to clean the flue gas
d for easy flow of flue gas
17

A deepwell pump is a type of ___________.

a screw pump
b centrifugal pump
c eductor
d gear pump
18

A type 1 chemical tanker is intended to tansport cargoes that have

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

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
20

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
21

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
22

The purpose of a cofferdam between two compartments is to

a store tools and equipment that are necessary for the adjacent compartments
b give access to the bulkhead for inspection and repairs when the tanks are full with liquid
c keep a reserve space if capacity of either compartment needs to be increased
d prevent different liquids from the two tanks coming in contact in case of a leak
23

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
24

What is Cold Work?

a Work that involves working at lower temperatures
b Work that involves using hand tools only
c Work that cannot create a source of ignition
d Work that is carried out at lower than ambient temperatures
25

Acidic solutions are formed in cargo tanks of tankers

a when sulphur compounds in oil cargoes react with water
b when sulphur compounds in oil cargoes react with oxygen
c when sulphur compounds in oil cargoes react with hydrocarbon gas
d when sulphur compounds in oil cargoes react with chemicals
26

Which of the following is not true about eductors?

a The discharge from eductor leads to pump room bilge
b It has no moving parts and is virtually maintenance free
c It is very efficient in striping crude oil of high vapour pressure
d The drive liquid has to be same as the stripped cargo
27

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
28

Which pump must always be primed?

a Centrifugal pump
b Reciprocating pump
c Rotary pump
29

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
30

Category Y noxious liquid substances are deemed to present a major hazard and therefore

a Justify the prohibition of discharge into the marine environment
b Justify a limitation on the quantity of the discharge into the marine environment
c Justify less stringent restrictions of discharge into the marine environment
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Mock Test Info
Course Name BASIC OTFC COURSE
Mock Test 1
Questions 30
Students 1,345
Test Time 15 Minutes
BASIC OTFC COURSE

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