Engineering Thermodynamics
A process of heating crude oil to a high temperature under a very high pressure to increase the yield of lighter distillates, is known as

Full distillation
Cracking
Fractional distillation
Carbonization

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Engineering Thermodynamics
Which of the following is the correct statement?

All engines are designed as reversible in order to obtain maximum efficiency.
All the reversible and irreversible engines have the same efficiency.
Irreversible engines have maximum efficiency.
All the reversible engines have the same efficiency.

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