Support Deck. Test 3 – Online Maritime Tests

What do we mean with MARVS on a cargo tank?

We mean maximum allowed relieve valve setting
We mean maximum ROB of vapour
We mean maximum recovery system
We mean minimum allowed relieve valve setting

Several cargoes require determination of pH values (acidity) which is often a measure of quality or degradation of cargo such as animal or vegetable oil during transport. A neutral solution has a pH value of:

What are you going to measure regarding oxygen content and hydrocarbon gas content before any permits are issued and entering is allowed?

21% oxygen by volume and 1% hydrocarbon by volume.
21% oxygen by volume and 0% hydrocarbon of LEL.
20% oxygen by volume and 1% hydrocarbon by volume.
20% oxygen by volume and 1% hydrocarbon of LEL

Before any portable gas indicators are brought to the measuring spot, what is very important to do with these analysers first?

Zero adjust them
Just renew the batteries.
To do a full calibration.
Just check the filters

What is the main fire fighting medium for tank deck on gas and chemical carriers?

Chemical powder is the main medium for tank deck fire fighting on gas and chemical carriers
Foam is the main medium for tank deck fire fighting on gas and chemical carriers
Freshwater is the main medium for tank deck fire fighting on gas and chemical carriers
There is not any main medium for tank deck fire fighting on gas and chemical carriers

What is flashpoint of an oil or liquefied gas?

The flashpoint is the temperature needed to have a oil or liquefied gas pumpable
The flash point for an oil or liquefied gas is the temperature at which it is possible to ignite the vapour above the liquid
The flashpoint is the mixture of oxygen and hydro carbons needed to have an oil or liquefied gas to burn
The flashpoint is the temperature the oil or liquefied gas need for self ignition

You are going to enter a tank to clean up some dust. What kind of permits is required to be issued before entering?

Enclosed Space Entry Permit
Enclosed Space Entry Permit and Cold Work Permit
Enclosed Space Entry Permit and Hot Work Permit.
Hot Work Permit and Cold Work Permit.

Review Answers