FREE Tanker Familiarization Cargo Properties and Hazards Questions and Answers

Question 1

Which of the following properties is a primary indicator of a liquid cargo's volatility and its tendency to produce flammable vapors at a given temperature?

Accepted Answer

Reid Vapour Pressure (RVP)

Answer

Viscosity

Answer

Specific Gravity

Answer

Pour Point

Question 2

A vessel is scheduled to load a cargo of Styrene Monomer, which is susceptible to polymerization. What is the primary hazard associated with an uncontrolled polymerization reaction in a cargo tank?

Accepted Answer

A rapid, exothermic reaction generating intense heat and pressure.

Answer

A significant decrease in the cargo's temperature.

Answer

The cargo becoming highly corrosive to the tank structure.

Answer

The release of oxygen, creating a fire-risk atmosphere.

Question 3

The 'Flashpoint' of a liquid cargo is the:

Accepted Answer

Lowest temperature at which the liquid gives off enough vapor to form an ignitable mixture with air.

Answer

Temperature at which the liquid will auto-ignite without an external ignition source.

Answer

Temperature at which the liquid boils under standard atmospheric pressure.

Answer

Maximum temperature to which a cargo can be heated before it becomes unstable.

Question 4

During cargo operations, the build-up of static electricity presents a significant hazard, especially with non-conductive petroleum products. Which of the following is the most immediate danger posed by an electrostatic discharge inside a cargo tank?

Accepted Answer

Ignition of flammable vapors.

Answer

Corrosion of the tank's internal coatings.

Answer

Over-pressurization of the tank.

Answer

Contamination of the cargo.

Question 5

A Safety Data Sheet (SDS) for a chemical cargo indicates that it is highly toxic. What is the most likely primary route of entry that poses a significant health risk to crew members during cargo handling?

Accepted Answer

Inhalation of vapors or contact with the skin.

Answer

Auditory absorption through the ears.

Answer

Radiation exposure.

Answer

Physical impact from the liquid.

Question 6

A tanker is carrying a cargo classified as highly corrosive. Which of the following represents the main hazard associated with this property?

Accepted Answer

The cargo can cause rapid destruction of human tissue and damage to the ship's structure.

Answer

The cargo will spontaneously heat up during the voyage.

Answer

The cargo vapors will displace oxygen, creating an asphyxiation risk.

Answer

The cargo is prone to freezing at ambient temperatures.