IC Engine Questions and Answers – Types of Lubricants

This set of IC Engines Multiple Choice Questions & Answers (MCQs) focuses on “Types Of Lubricants”.

1. The ____________ are obtained from the residual mass left during crude petroleum distillation.
a) fatty oils
b) synthetic lubricants
c) mineral lubricating oils
d) none of the mentioned
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2. Parafins crudes generally give a lower yield of lubricating oils than naphthenic crudes.
a) True
b) False
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3. In mineral lubricating oils, bubble towers are used for fractionalisation of oil into two or three fractions of different viscosities.
a) True
b) False
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4. Fatty oils from animal and vegetable origin are sometimes used alone but are frequently mixed with mineral oils.
a) True
b) False
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5. Olive oil is employed for lubricating textile machinery.
a) True
b) False
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6. Lard oil is used for making lubricants for railway engines.
a) True
b) False
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7. Rapeseed oil is used for producing lubricants for internal combustion engines.
a) True
b) False
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8. Caster oil is usually compounded with heavy mineral oils for making extreme pressure lubricants.
a) True
b) False
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9. Which of the following are the types of synthetic lubricants?
a) dibasic acid esters
b) organo-phosphate esters
c) silicate esters
d) all of the mentioned
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10. Which of the following are the types of synthetic lubricants?
a) silicon polymers
b) polyglycolethers and related compounds
c) fluorinated and chlorinated hydrocarbon compounds
d) all of the mentioned
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Sanfoundry Global Education & Learning Series – IC Engine.

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