Question 1
Base oil combinations are selected to meet:
- Pour point.
- Viscosity index.
- Operational conditions.
- Oxidation stability.
Marine Lubricants
CBT 27 questions
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Question 2
Crude oils are roughly classified as:- Paraffinic, naphthenic and mixed base.
- Straight and branched chain.
- Waxy and asphaltic.
- Heavy and light.
Question 3
Friction modifiers or "oiliness additives" will:- Improve the viscosity index.
- Reduce friction under boundary conditions.
- Increase the pour point.
- Extend lubricating oil life time.
Question 4
In which type of equipment is low pour point and good wax depositing important?- Refrigeration compressors.
- Deck winches.
- Medium speed trunk engines.
- Hydraulic cranes.
Question 5
Lubricant base oils generally exhibit boiling points above:- 300 °C.
- 200 °C.
- 150 °C.
- 100 °C.
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About this CBT test
Marine Lubricants is a CBT test with 27 questions and verified answers. Common topics include: lubricant base, oil, oils, important, hydrocarbons, properties, synthetic, crude.
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