Tanker Familiarization Tanker Safety Systems 3

Question 1

Which type of fire suppression system is most commonly used in tanker cargo pump rooms?

Accepted Answer

CO2 or fixed foam system

Answer

Cargo pump rooms typically use CO2 or fixed foam systems because they effectively suppress hydrocarbon fires without damaging electrical equipment.

Question 2

What is the purpose of a vapor recovery system (VRS) on a tanker?

Accepted Answer

To capture and control cargo vapors during loading to prevent atmospheric release

Answer

Vapor recovery systems capture hydrocarbon vapors displaced during cargo loading, preventing pollution and reducing fire/explosion risk at terminals.

Question 3

On a tanker, the term 'overfill protection' refers to:

Accepted Answer

Independent alarms and shutoffs that prevent cargo tanks from being loaded beyond safe limits

Answer

Overfill protection systems include independent level sensors and automatic shutoffs that stop loading before a tank can overflow, preventing spills and structural damage.

Question 4

What is the danger of electrostatic discharge in tanker cargo operations?

Accepted Answer

It can ignite flammable vapors during loading or cleaning operations

Answer

Static electricity generated during cargo flow or tank cleaning can discharge as a spark in a flammable atmosphere, potentially causing an explosion.

Question 5

A 'closed loading' procedure on a tanker means:

Accepted Answer

Cargo is loaded through closed systems with vapors vented to a recovery system or inerted

Answer

Closed loading keeps the cargo system sealed, routing displaced vapors to a VRS or through inert gas systems, reducing fire risk and atmospheric pollution.

Tanker Familiarization Practice Test

Tanker Familiarization Practice Test

Tanker Familiarization Tanker Safety Systems 3