Classification of Lubricants - 4 Online Exam Quiz
Classification of Lubricants - 4 GK Quiz. Question and Answers related to Classification of Lubricants - 4. MCQ (Multiple Choice Questions with answers about Classification of Lubricants - 4
A dispersion system consisting of two immiscible liquids is called __
Options
A : Lubricants
B : Emulsions
C : Semi solids
D : Solids
Easily oxidised impurities cause ___
Options
A : Moisture formation
B : Nitrogen formation
C : Sludge formation
D : Ash formation
In oil in water emulsions, how much water is present ___
Options
A : 3-20%
B : 40-50%
C : 3-4%
D : 5-8%
Liquid paraffin is used as __
Options
A : Dye
B : Medical purposes
C : Inhibitor
D : Catalyst
Paraffins are mostly used as ___
Options
A : dye
B : lubricant
C : catalyst
D : coolent
Paraffins are obtained by __ process from petroleum.
Options
A : fractional distillation
B : sedimentation
C : filtration
D : fermentation
Petrol captured the market up to the percentage of ___
Options
A : 100%
B : 90%
C : 98%
D : 75%
The emulsifiers in water in oil type emulsions are __
Options
A : Sodium salts
B : Potassium salts
C : Oxides
D : Alkaline earth soaps
The lubricating oils must be refined to remove ___
Options
A : Wax
B : Hydrocarbons
C : Nitrogen
D : Oxygen
To improve the refined petroleum oils ___ are added.
Options
A : Additives
B : Inhibitors
C : Catalysts
D : Carbon
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