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Below is the list of questions being asked in Director General of Shipping Exit exam of Basic Training for Oil and Chemical Tanker Cargo Operations (OCTCO). These questions are very frequently asked during Director General of Shipping Exit exam. Prepare well for these exit exams so that you don’t waste time and money by again appearing for these exams.

Questions have been compiled as per feedback given by many candidates. You can also contribute by suggesting questions in the comments box.

Ques. 1  MARPOL annex 1 deals with

a] oil pollution

            b] chemical pollution

            c] both oil & chemical pollution

            d] garbage pollution

Answer : a

Ques. 2  MARPOL annex 2 deals with noxious liquid substances

a] oil pollution 

b] chemical pollution 

c] both oil & chemical pollution

d] sewage pollution

Answer : b

Ques. 3  An inhibitor stops

a] polymerization 

b] self reaction 

c] both a & b 

d] putrefaction

Answer : a

Ques. 4  TLV is

a] tiredness limiting valve

b] total limiting valve

c] threshold limit value

d] transport limit value

Answer : c

Ques. 5  A parcel chemical tanker is capable of carrying

a] same chemical on all voyages 

b] different small parcels of cargo in each tank

c] only one grade of cargo

Answer : b

Ques. 6  A sudden increase of pressure of liquid in a pipeline is

a] pressure drop 

b] pressure value 

c]  pressure surge 

d] all of above

Answer : c

Ques. 7  Fire triangle consists of 

a] oxygen 

b] flammable material

c] ignition source

d] all

Answer : d

Ques. 8  Minimum percentage of oxygen required for fire is

a] 0.5% 

b] 18% 

c] 11% 

d] 21%

Answer : c

Ques. 9  Minimum % of oxygen maintained in cargo oil tanks by inert gas to prevent fire is

a] 5% 

b] 8%

c] 21% 

d] 11%

Answer : a

Ques. 10  how many pumps inside one tank on a chemical tanker

a] one 

b] two 

c] three 

d] none

Answer : a

Ques. 11  A pressure tank can withstand pressure of

a] more than o.7 bar gauge 

b] less than o.7 bar gauge 

c] all of the above

Answer : a

Ques. 12  On chemical tanker decontamination shower and eye wash is located on

a] crew wash room 

b] CCR 

c] main deck

Answer : c

Ques. 13  A gravity tank can be and

a] integral 

b] independent 

c] integral & independent both types

Answer : c

Ques. 14  Hazards associated with dangerous liquid substances are

a] flammability 

b] toxicity 

c] corrosivity 

d] reactivity 

e] all of above

Answer : c

Ques. 15  Odour threshold is measured in

a] ppt

b] ppp

c] ppm

Answer : c

Ques. 16  which hand torches can be used on tanker

a] any 

b] only Duracell

c] Intrinsically safe 

d] high powered

Answer : c

Ques. 17  Ullage is the distance between liquid level and

a] tank bottom

b] tank top

Answer : b

Ques. 18  can cold work create source of ignition

a] may 

b] cannot 

c] both

Answer : a

Ques. 19  Chipping is classified as

a] cold work

b] safe work

c]  hot work

Answer : a

Ques. 20  does ventilation continue while working in pump room

a] may 

b] may not 

c] must 

d] both a & b

Answer : c

Ques. 21  Petroleum having flash point below 60 deg C are known as

a] pure 

b]  safe 

c] volatile

Answer : c

Ques. 22  what is the lowest temperature at which petroleum remains fluid

a] boiling pt

b] melting pt

c] Pour pt

Answer : c

Ques. 23  Cargo quantity is calculated at what temperature

a] ambient 

b] local avarage

c] standard

d] all

Answer : a

Ques. 24  Dagger tubes are used for measuring which gas

a] toxic 

b] oxygen

c] hydrogen

Answer : a

Ques. 25  what quantity of Hydrogen sulphide is bad for health

a] large 

b] even a small

c] medium quantity

Answer : b

Ques. 26  Cargo record book is mandatory on which tankers

a] oil 

b] chemical 

c] both oil & chemical

Answer : b

Ques. 27  Various properties of chemical cargo are

a] melting point

b] volatility

c] vapour pressure

d] all

Answer : d

Ques. 28  Petrochemicals listed in ch 17 of IBC code are carried on a which tanker

a] chemical

b] oil c] both oil & chemical

Answer : a

Ques. 29  A Framo centrifugal pump is driven by

a] electricity 

b] oil 

c] hydraulic oil

Answer : c

Ques. 30  The resistance of liquid to flow is called

a] pressure surge

b] mobility 

c] viscosity

d] hydraulic pressure

Answer : c

Ques. 31  The first liquid chemical tanker was delivered in the year

a] 1960 

b] 1970 

c] 1975 

d] none of the above

Answer : a

Ques. 32  Percentage of oxygen in the atmosphere is

a] 15  %

b] 20 %

c] 21  %

d] 24 %

Answer : c

Ques. 33  All equipment used on tankers like walkie talkie, torches, camera must be

a] sturdy 

b] made of brass 

c] intrinsically safe 

d] good quality

Answer : c

Ques. 34  Purging is the introduction of which gas into already inerted tank

a] oxygen

b] air

c] both a & b

d] inert

Answer : d

Ques. 35  Pour point is the lowest temperature at which petroleum remains _____

a] stable 

b] volatile

c] pure 

d] fluid

Answer : d

Ques. 36  Resuscitator is to assist / restore the

a] breathing 

b] pulse rate 

c] both breathing & pulse rate

Answer : c

Ques. 37  Cargo tanks can be

a] independent and integral

b] only independent

c] only integral

Answer : a

Ques. 38  Explosive meter is used for measuring % of

a] UFL

b] LEL

c] inert gas

d] hydrocarbon gas

Answer : b

Ques. 39  what type of crude is used for COW

a] dry

b] wet

c] both dry & wet

d] sweet

Answer : a

Ques. 40  Cargo residual satisfying how much IRD in lts /NM may be pumped out satisfying all other conditions

a] 10    

b] 20    

c] 21   

d] 30

Answer : d

Ques. 41  An inhibitor is a negative catalyst

a] true   

b] false 

Answer : a

Ques. 42  Exothermic means giving out heat

a] true   

b] false 

Answer : a

Ques. 43  Adiabatic expansion means expanding without receiving heat

a] true   

b] false 

Answer : a

Ques. 44  A dedicated chemical tanker transports same cargo on each voyage

a] true   

b] false 

Answer : a

Ques. 45  All tanks are required to be fitted with PV breakers

a] true   

b] false 

Answer : b

Ques. 46  All tanks are fitted with pressure vacuum valve

a] true   

b] false 

Answer : a

Ques. 47  Only some crude oils required to be heated

a] true   

b] false 

Answer : a

Ques. 48  Inert gas contains ≤ 5% oxygen

a] true   

b] false 

Answer : a

Ques. 49  OBO ship cannot carry oil

a] true    

b] false 

Answer : b

Ques. 50  Defective hoses can create spillage

a] true   

b] false 

Answer : a

Ques. 51  Petroleum vapours are non toxic

a] true   

b] false 

Answer : b

Ques. 52  Cargo tank is ready for man entry after COW

a] true   

b] false 

Answer : b

Ques. 53  Ventilation must not continue while working in pump room

a] true   

b] false 

Answer : b

Ques. 54  Cargo pump trips are to be tried out prior to loading

a] true   

b] false 

Answer : b

Ques. 55  Enter y permit is required for entry in cargo tank and pump room

a] true   

b] false 

Answer : a

Ques. 56  During topping off of tank loading rate is reduced

a] true   

b] false 

Answer : a

Ques. 57  Hot work permit can be issued to a non gas free tank

a] true   

b] false 

Answer : b

Ques. 58  Flammable range of hydrocarbons is between 1:10

a] true   

b] false 

Answer : a

Ques. 59  The unrestricted fall of liquid in tank is known as loading overall

a] true   

b] false

Answer : a

Ques. 60  Sounding is the depth between liquid level and tank bottom

a] true   

b] false 

Answer : a

Ques. 61  During ballast passage oil tankers are required to remain in an inerted condition

a] true   

b] false

Answer : a

Ques. 62  In a tanker smoking is allowed only in designated smoking areas

a] true   

b] false 

Answer : a

Ques. 63  PPM means parts per million

a] true   

b] false

Answer : a

Ques. 64  Ordinary hand torches cannot be used on tanker

a] true   

b] false 

Answer : a

Ques. 65  Crude oil washed tanks are ready for clean ballasting

a] true   

b] false 

Answer : a

Ques. 66  Metal hand tools can cause sparks by striking together

a] true   

b] false 

Answer : a

Ques. 67  Flammable gas remains in the tank after tank washing

a] true   

b] false 

Answer : a

Ques. 68  Gas free tanks may have to be inerted before loading

a] true   

b] false 

Answer : a

Ques. 69  During loading and discharging all scuppers must be plugged

a] true   

b] false 

Answer : a

Ques. 70  Sparkles tools are used on tankers

a] true   

b] false 

Answer : a

Ques. 71  Defective loading hose can cause slippage

a] true  

b] false 

Answer : a

Ques. 72  you must only wear oil resistant gloves on an oil tanker

a] true   

b] false 

Answer : a

Ques. 73  minimum oxygen concentration is the minimum quantity of oxygen required for cargo to ignite

a] true   

b] false 

Answer : a

Ques. 74  accommodation should always be kept at a negative pressure in tankers

a] true   

b] false 

Answer : b

Ques. 75  sour crude is not more dangerous than sweet crude

a] true   

b] false 

Answer : b

Ques. 76  an oil tanker under NLS certification may carry some chemical cargoes

a] true   

b] false 

Answer : b

Ques. 77  orange juice is carried on chemical tankers

a] true   

b] false 

Answer : a

Ques. 78  type of chemical tankers and type of tanks are two different concepts on chemical tankers

a] true 

b] false 

Answer : a

Ques. 79  dilute acid is more dangerous than concentrated acid due to its oxidizing properties

a] true   

b] false

Answer : a

Ques. 80  both acids & alkalies are equally dangerous

a] true   

b] false

Answer : a

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