Chemical Engineering

Prepare with the best Chemical Engineering MCQs with answers and detailed explanations for exams and job tests. Our collection covers key topics such as chemical process calculations, thermodynamics, fluid mechanics, heat transfer, mass transfer, reaction engineering, instrumentation, and plant design. These Chemical Engineering multiple-choice questions are ideal for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and job interviews. Practice online with updated Chemical Engineering MCQs to strengthen your concepts and improve technical problem-solving skills.

📘 Basic Chemical Engineering MCQs
📘 Chemical Process MCQs
📘 Chemical Reaction Engineering MCQs
📘 Environmental Engineering MCQs
📘 Fertilizer Technology MCQs
📘 Fluid Mechanics MCQs
📘 Fuel and Combustion MCQs
📘 Furnace Technology MCQs
📘 Heat Transfer MCQs
📘 Mass Transfer MCQs
📘 Materials and Construction MCQs
📘 Nuclear Power Engineering MCQs
📘 Petroleum Refinery Engineering MCQs
📘 Plant Economics MCQs
📘 Polymer Technology MCQs
📘 Process Equipment and Plant Design MCQs
📘 Refractory Technology MCQs
📘 Statiometery MCQs
📘 Thermodynamics MCQs

2421. In catalytic cracking, the

gasoline obtained has a very low octane number.
pressure & temperature is very high.
gasoline obtained has very high aromatic content.
gasoline obtained has very high amount of gum forming compounds.
✅ The correct answer is option C.

2423. Antioxidants are added in petrol to

impart colour to it, for easy identification.
minimise the gum formation.
prevent icing of the carburettor.
prevent the lead build up in engines.
✅ The correct answer is option B.

2426. Aniline point is the

characteristic property of diesel & lubricating oils.
measure of aromatic content of oil.
both (a) and (b).
neither (a) nor (b).
✅ The correct answer is option C.

2430. Petrolatum is

same as petroleum ether.
petroleum coke.
a mixture of microcrystalline wax in viscous hydrocarbon liquids.
none of these.
✅ The correct answer is option C.
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