Tanker Familiarization Cargo Handling and Operations 2

Question 1

What is the primary purpose of an inert gas system on a tanker?

Accepted Answer

To prevent explosive mixtures from forming in cargo tanks

Answer

To cool the cargo during transit

Answer

To increase cargo pumping speed

Answer

To reduce cargo viscosity

Question 2

When loading a tanker, what does the term 'ullage' refer to?

Accepted Answer

The distance from the top of the tank to the liquid surface

Answer

The total cargo volume loaded

Answer

The temperature of the cargo

Answer

The pressure inside the cargo tank

Question 3

Which valve type is typically used as the primary isolation valve on a tanker's cargo manifold?

Accepted Answer

Butterfly valve

Answer

Globe valve

Answer

Ball valve

Answer

Gate valve

Question 4

During cargo discharge, what is 'stripping' on a tanker?

Accepted Answer

Pumping out the last remaining cargo using a stripping system

Answer

Removing protective coatings from tank walls

Answer

Cleaning the cargo lines after discharge

Answer

Venting excess vapors from the tanks

Question 5

What is the significance of the 'closed gauging' method on a tanker?

Accepted Answer

It allows gauging without opening the tank, preventing vapor release

Answer

It provides more accurate readings than open gauging

Answer

It can only be used for non-flammable cargoes

Answer

It requires removing the tank top cover to insert a gauge

Question 6

What is a 'cargo loading plan' primarily used for on a tanker?

Accepted Answer

Ensuring structural integrity and stability throughout the loading sequence

Answer

Recording the names of cargo handlers

Answer

Scheduling crew meal breaks during cargo operations

Answer

Documenting the cargo's commercial value

Question 7

What is the purpose of a 'vapor recovery system' during cargo loading?

Accepted Answer

To capture displaced cargo vapors and return them to the shore facility

Answer

To recover spilled cargo from the sea

Answer

To measure the vapor pressure of the cargo

Answer

To supply inert gas to the cargo tanks