OCTCO/OCTF - Oil and Chemical Tanker Cargo Operations Exit Exam Questions - Set 8

Question 1

When operating with a negative suction head which of this type of pump is the best choice?

Accepted Answer

A: Reciprocating

Answer

B: Rotary

Answer

C: Gear

Answer

D: Centrifugal

Question 2

Loading through the pump discharge and recirculation line initially is _____?

Accepted Answer

D: To be avoided.

Answer

A: Permissible

Answer

B: Done to increase the loading rate.

Answer

C: Normally the approved way to load all the cargo & slop tanks

Question 3

When should employees be informed of the fire hazards to which they are exposed at work?

Accepted Answer

A: Upon the initial assignment

Answer

B: Within two days of the initial assignment

Answer

C: Within 30 days of the initial assignment

Answer

D: Within 90 days of the initial assignment

Question 4

A designated area within definite limits which has been accurately surveyed for clearance of sea bottom and submerged obstacles to a minimum indicated depth of water?

Accepted Answer

D: Deep water route

Answer

A: Designated routes

Answer

B: Safe shipping routes

Answer

C: Safe slop discharge routes

Question 5

The groups of alcohols and carbohydrates includes products which may be produced by fermentation, such as?

Accepted Answer

B: Wine

Answer

A: Liquor

Answer

C: Mollasses

Answer

D: None of these

Question 6

To discharge the last amount of cargo ashore, the stripping pump through the small diameter line is used from cargo tanks. Where does this small diameter line come from in the pump room ?

Accepted Answer

D: From the cargo pump discharge line to the stripping pump.

Answer

A: From the individual stripping line to the stripping pump.

Answer

B: From the tank suction line to the Main cargo oil pump.

Answer

C: From the cargo pump suction pipe line to the stripping pump.

Question 7

The term solubility refers to the ability to mix with _________?

Accepted Answer

D: other liquids

Answer

A: Oil

Answer

B: Air

Answer

C: Water

Question 8

Fixed foam monitors having a maximum capacity of _____ L/min?

Accepted Answer

D: 7700

Answer

A: 4400

Answer

B: 5500

Answer

C: 6600

Question 9

Cargo tanks are not ____ with IG before gas freeing then the concentration of atmosphere will pass through flammable range?

Accepted Answer

B: Purged

Answer

A: Crude oil washed

Answer

C: Tank cleaning

Answer

D: Re-inerting

Question 10

In scrubber _____ is readily absorbed by water?

Accepted Answer

A: SO2

Answer

B: SO3

Answer

C: SO4

Answer

D: Sox

Question 11

Inert gas system has scrubber tower in a flue gas from boiler flue gas type of system. What is the arrangement for a separately fired inert gas Generator?

Accepted Answer

A: The IG Generator also has scrubber tower combined with the furnace.

Answer

B: The IG Generator can also have a separate scrubber tower.

Answer

C: The separately fired IG Generator does not have a scrubber tower.

Answer

D: Conditions (A) and (C) are suitable.

Question 12

Why CO2 is not used as an inert gas?

Accepted Answer

C: Have intense electro-static field

Answer

A: More denser

Answer

B: Have more conductivity

Answer

D: None of the above

Question 13

An inert gas is one which has little or no ability to react with other gases, or to heat. Examples of Inert gases are nitrogen and CO2. Shipboard inert gas systems utilize CO2, either from flue gas sources or from inert gas generators.

Accepted Answer

A: True

Answer

B: False

Question 14

Submerged cargo pumps cofferdam leakage is tested by the following intervals?

Accepted Answer

D: Every monthly & suitably after every operation of discharge/ballasting.

Answer

A: Every 6 months

Answer

B: Every 12 months

Answer

C: Every month

Question 15

Who should tank cleaning operations be supervised by?

Accepted Answer

D: Responsible Officer

Answer

A: Shore representative

Answer

B: Pump man

Answer

C: Deck Officer

Question 16

With reference to liquefied gas operation, what is the term “rollover” used to describe?

Accepted Answer

A: When two or more stratified layers of different density LNG in the same tank suddenly mix together causing

Answer

B: Vapor pockets forming at the bottom of a half-filled tank

Answer

C: Custody transfer at the terminal

Answer

D: Moving LNG from one tank to another

Question 17

What does code R stand in ship shore safety checklist?

Accepted Answer

D: Re-checked

Answer

A: Remarks

Answer

B: Request

Answer

C: Require

Question 18

Black oils are generally?

Accepted Answer

B: Static non- accumulators

Answer

A: Static accumulators

Answer

C: Both

Answer

D: None of the above

Question 19

The gas regulating valve should be opened very slowly in order to avoid:

Accepted Answer

A: Back flow gas

Answer

B: Water carries over

Answer

C: Noise

Answer

D: Vibrations

Question 20

In crude oil tankers, the gas detectors installed should be?

Accepted Answer

D: All of the above

Answer

A: Correct electrical classification

Answer

B: Weather proof

Answer

C: Corrosion resistant

Question 21

If the flash point of an oil cargo is 58°C, it is said to be?

Accepted Answer

A: Volatile

Answer

B: Non-volatile

Answer

C: Toxic

Answer

D: None of the above

Question 22

Which is the basic safety device fitted on the deck inert gas line to monitor the supply condition of the inerted tanks and pipelines of supply of gas?

Accepted Answer

D: All the above (A), (B) and (C)

Answer

A: The inert gas low pressure alarm

Answer

B: The inert gas high temperature alarm

Answer

C: The inert gas low flow alarm

Question 23

Which of these is a positive displacement pump?

Accepted Answer

D: Both (A) and (B)

Answer

A: Gear

Answer

B: Reciprocating

Answer

C: None of the above

Question 24

What is the purpose of a “part flow system” installed on some oil tankers?

Accepted Answer

B: The Part Flow system makes it possible to observe the discharge visually for oil content, on older tankers with discharge below the waterline.

Answer

A: The Part Flow system makes it possible to discharge dirty ballast below the water line on older tankers.

Answer

C: The Part Flow system makes it possible to observe the discharge visually for oil content, even in darkness.

Answer

D: The Part Flow system makes it possible to measure the oil content, even if the Oil Discharge Monitoring Equipment is not working.

Question 25

Who should attend during connection of cargo oil transfer arms/hoses?

Accepted Answer

B: Responsible deck officer

Answer

A: Pump man

Answer

C: Able Seaman

Answer

D: Bosun

Question 26

During cargo operations, a wind blowing may ____?

Accepted Answer

B: Form eddies containing petroleum vapor

Answer

A: Lower the temperature of the oil cargo

Answer

C: Increase air pressure in a cargo tank

Answer

D: Decrease air pressure in a cargo tank

Question 27

In oil tankers, there are __ foam boxes on the cargo deck?

Accepted Answer

A: Two

Answer

B: Three

Answer

C: Four

Answer

D: Five

Question 28

In IG system, ideally the blower casing should be ____ split with split bearings?

Accepted Answer

B: Vertically

Answer

A: Horizontally

Answer

C: Angularly

Answer

D: None of the above

Question 29

Before arriving in a port where it is intended to crude oil wash the tank washing system should be pressure tested to ____?

Accepted Answer

D: The normal working pressure

Answer

A: 150% of the working pressure

Answer

B: 125% of the normal working pressure

Answer

C: 75% of the normal working pressure

Question 30

LOT is defined as both a procedure and a practice?

Accepted Answer

A: Load on Top

Answer

B: Load on tanks

Answer

C: Load on Transverse

Answer

D: Load on Table

Oil and Chemical Tanker Cargo Operations (OCTCO/OCTF) (Set 8)

When operating with a negative suction head which of this type of pump is the best choice?

Questions in OCTCO/OCTF Set 8

Question Discussion & Notes

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