Question 1
Chemical reaction is supported by:
- Heat.
- Low dew point.
- The presence of hydrocarbons.
- The presence of oxygen.
Tank Cleaning 2, Principles of Tank Cleaning
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Question 2
If you want to prepare the tank by ventilation only the vapour pressure must normally be more than:- 5 kpa.
- 0,5 Bar.
- 5 mB.
- 500 mB.
Question 3
The most common reason for tank cleaning is:- Facilitate gas freeing - tank entry.
- Prepare cargo tanks for carriage of the next cargo.
- Prevent build-up of cargo residues.
- To protect the environment.
Question 4
The tank washing principle wet-in-wet means:- Before cleaning with chemicals you must flush the cargo tank bottom.
- Cleaning of cargo lines must be done simultaneously with washing of cargo tanks.
- Initial tank washing shall start as soon as possible to avoid cargo residues to dry up.
- It is not possible to ventilate the tanks due to a high dew-point.
Question 5
The viscosity of a liquid depends on the:- Temperature of the liquid.
- Acid value of the liquid.
- Flash point of the liquid.
- Vapour pressure of the liquid.
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About this CBT test
Tank Cleaning 2, Principles of Tank Cleaning is a CBT test with 12 questions and verified answers. Common topics include: tank, wash, oil, pressure, common, reason, pour, point.
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