OCTCO/OCTF - Oil and Chemical Tanker Cargo Operations Exit Exam Questions - Set 6

Question 1

Cargo tank fill alarm indicator panels:

Accepted Answer

D: are normally fitted in the cargo control room and sometimes on deck

Answer

A: are normally fitted on the bridge and sometimes on deck

Answer

B: are normally fitted in the engine control room and sometimes on deck

Answer

C: are normally fitted on the bridge and sometimes in the engine control room

Question 2

Tank coating requirements developed by IMO are applicable to?

Accepted Answer

B: new crude oil tankers of 5000 DWT and above

Answer

A: new crude oil tankers of 5000 GRT and above

Answer

C: new crude oil tankers of 500 GRT and above

Answer

D: new crude oil tankers of 500 DWT and above

Question 3

The total capacity of all slop tanks on an oil tanker normally should be?

Accepted Answer

C: 3% of the total oil carrying capacity of ship

Answer

A: 1% of the total oil carrying capacity of ship

Answer

B: 2% of the total oil carrying capacity of ship

Answer

D: 4% of the total oil carrying capacity of ship

Question 4

In chemical tankers the coding system used by the IBC Code for an independent tank is?

Accepted Answer

A: 1

Answer

B: 2

Answer

C: G

Answer

D: P

Question 5

Which of the following is cofferdam?

Accepted Answer

B: Pump room on an oil tanker

Answer

A: Chain locker

Answer

C: Deep tank

Answer

D: Slop tank on an oil tanker

Question 6

The purpose of a cofferdam between two compartments is to?

Accepted Answer

D: Prevent different liquids from the two tanks coming in contact in case of a leak

Answer

A: Store tools and equipment that are necessary for the adjacent compartments

Answer

B: Give access to the bulkhead for inspection and repairs when the tanks are full with liquid

Answer

C: Keep a reserve space if the capacity of either compartment needs to be increased

Question 7

Which pump must always be primed?

Accepted Answer

A: Centrifugal pump

Answer

B: Reciprocating pump

Answer

C: Rotary pump

Answer

D: Gear pump

Question 8

What does "VECS" stand for?

Accepted Answer

B: Vapor emission control system

Answer

A: Vector control system

Answer

C: Very economical control system

Answer

D: An arrangement for release of cargo vapor

Question 9

The minimum safety during EGB soot blow must be carried out with?

Accepted Answer

A: The OOW & Masters consent avoid soot blow during the purging time

Answer

B: Any time excluding the dark night hours

Answer

C: At 12 hours interval

Answer

D: At 8 hrs. interval

Question 10

Why is a warning sign displayed at the gangway or access point of a barge during cargo transfer?

Accepted Answer

B: To keep visitors away from the barge-No smoking, no open lights, no visitors

Answer

A: To indicate any health risk if applicable

Answer

C: To designate smoking areas

Answer

D: To indicate if the cargo is a marine pollutant

Question 11

Oxygen deficiency will begin to cause problems to personnel, do you feel to measure the atmosphere before entering clean Tanker?

Accepted Answer

B: Always necessary for ballast tanks

Answer

A: Not necessary for ballast tanks

Answer

C: Not necessary if the tank is filled up twice and discharged at sea

Answer

D: Not necessary if the tank is ventilated by external fans

Question 12

Which party is responsible for arranging the reducers or enlarger short pieces to the manifold?

Accepted Answer

A: The Cargo supplier

Answer

B: The Cargo Surveyors

Answer

C: The Ships Mooring crew

Answer

D: The tankers staff for the operation

Question 13

Very light gaseous molecules such as ______ are extracted at the well head?

Accepted Answer

A: Methane

Answer

B: Butane

Answer

C: Propane

Answer

D: None of these

Question 14

Closed Gauging System: This type of gauging is done extensively on vessels with inert gas systems. Such a system that allows no vapors to atmosphere is a true closed system while other types that allow minimum vapors to be lost to the atmosphere are called “restricted systems”.

Accepted Answer

A: True

Answer

B: False

Question 15

In the event of a pneumatic remote-control failure in the inert gas plant I/P and E/P controllers, during discharge _____?

Accepted Answer

C: The discharge rate must be reduced until the plant is repaired

Answer

A: The inert gas plant must be operational within one hour of failure and the discharging may continue for this time

Answer

B: The discharge must be immediately halted

Answer

D: The venting of IG is set to maintain a predetermined pressure and the discharge can continue manually

Question 16

When the IG plant is shutdown, the IBC cooling water should be let on the scrubber for at least ____hour(s)?

Accepted Answer

C: 3

Answer

A: 1

Answer

B: 2

Answer

D: 4

Question 17

What are consequences of a high oxygen content alarm sound during normal operation?

Accepted Answer

D: The deck demand valve will automatically close. The atmosphere purge valve will open and the furnace presser control valve will regulate.

Answer

A: The plant is shut down

Answer

B: The pressure control valve and the flue gas isolating valve will automatically close

Answer

C: The alarm in Ccr will sound loud and the plant will auto stop

Question 18

What are these types of tanker: -LR1 (large range 1)?

Accepted Answer

B: 50,000-79,999 DWT

Answer

A: 25,000-49,999DWT

Answer

C: 80,000-159,999 DWT

Answer

D: None Of the Above

Question 19

The petroleum remaining after the removal of products such as methane is termed_______?

Accepted Answer

A: Crude oil

Answer

B: Diesel oil

Answer

C: HFO

Answer

D: None Of These

Question 20

PROTECTION for acetylene & oxygen line flame arresters & N/R flow back valves are for?

Accepted Answer

A: Carrying out gas welding & acetylene gas cutting work

Answer

B: Protection of personnel from high temp.

Answer

C: Preventing sparks from entering a tank or vent opening

Answer

D: Fire fighting

Question 21

In case of P/V valve for one tank is not working and the tank pressure is rising, what immediate actions are necessary usually set to follow?

Accepted Answer

D: Follow all the procedures (A) + (B) &(C)

Answer

A: Abort filling that individual tank

Answer

B: Try to open the valve manually

Answer

C: Isolate the line and change the valve from vessels tested spare

Question 22

Which topic is not required to be discussed at the pre- transfer conference?

Accepted Answer

A: Estimated time of finishing cargo

Answer

B: Details of transfer and receiving system

Answer

C: Emergency shutdown procedures

Answer

D: Identity of the product to be transferred

Question 23

Examples of inorganic chemicals such as:

Accepted Answer

D: All of the above

Answer

A: Sulphuric acid

Answer

B: Phosphoric acid

Answer

C: Nitric acid

Question 24

Clean ballast is normally______?

Accepted Answer

C: Ballast water loaded into cargo tanks which have been crude oil and water washed

Answer

A: Ballast water loaded directly into a cargo tank after discharge

Answer

B: Ballast water into cargo tanks which have been washed crude oil

Answer

D: Ballast water loaded in designated tanks used only for that purpose

Question 25

During loading operation ullage and temp measuring equipment is showing low battery which place can we replace battery?

Accepted Answer

D: Can be replaced only with indoor accommodation

Answer

A: Can be replaced on tank area

Answer

B: Can be replaced near manifold area

Answer

C: Can be replaced at pump room entrance

Question 26

Vessels in clean service normally do not have or need heater coils as the viscosity of the clean product is low enough to permit easy pumping at atmospheric temps.

Accepted Answer

B: With the exception of some lube oils & special vegetable oils

Answer

A: Applies to all clean petroleum products (CPP)

Answer

C: Applies to all chemicals

Answer

D: Applies to all condensates

Question 27

The foam system is operated from the _____room?

Accepted Answer

C: FGFC

Answer

A: CCR

Answer

B: ECR

Answer

D: All the above

Question 28

MARPOL Annex VI applies:

Accepted Answer

C: To ship with both of the above

Answer

A: Only the ships that fly the flag of a state that is party to MARPOL annex VI

Answer

B: Only to ships that visit ports of a state that is party to MARPOL annex VI

Answer

D: All ships irrespective of flag or port state control requirements

Question 29

Category X: Noxious liquid substance which, if discharged into the sea from tank cleaning or de ballasting operations, are deemed to present a major hazard to either marine resources or human health and, therefore, justify the prohibition of the discharge into the marine environment?

Accepted Answer

A: True

Answer

B: False

Question 30

Inert gas after leaving the demister will consist of the following?

Accepted Answer

D: Both A & B

Answer

A: Oxygen less than 5%

Answer

B: SO2 less than 2.0%

Answer

C: Water vapor 1%

Oil and Chemical Tanker Cargo Operations (OCTCO/OCTF) (Set 6)

Cargo tank fill alarm indicator panels:

Questions in OCTCO/OCTF Set 6

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