Chemical Engineering Archives

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.

2971. Cermets are combination of ceramic and metallic materials due to which they have high strength & resistance to high temperature. Cermets are used in the

hearth of the blast furnace.

nuclear reactors, missiles & space crafts.

insulation of high temperature furnaces.

roof of electric furnaces.

✅ The correct answer is option B.

2972. Which of the following has the highest octane number ?

Aromatics

i-paraffins

Naphthenes

Olefins

✅ The correct answer is option A.

2973. Paraffins are desirable in lubricating oil, as it has got high

viscosity

viscosity index

smoke point

pour point

✅ The correct answer is option C.

2974. Tanks used for the storage of petroleum products (which are inflammable) should be painted with a __________ paint.

black

white

red

yellow

✅ The correct answer is option B.

2975. Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst.

bauxite

fuller’s earth

activated clay

all (a), (b) & (c)

✅ The correct answer is option D.

2976. Electrical desalting of crude oil removes the __________ impurities.

oleophilic

oleophobic

both (a) and (b)

neither (a) nor (b)

✅ The correct answer is option B.

2977. Hollow refractory bricks are made by

slip casting

hand moulding

pressing/machine moulding

extrusion

✅ The correct answer is option A.

2978. Which is an anticing compound ?

Amyl nitrate

Alcohals

Mercaptans

Pyridine

✅ The correct answer is option B.

2979. Stabilisation of gasoline (petrol) means

removal of dissolved gases from it.

increasing its oxidation stability.

improving its lead susceptibility.

increasing its vapour pressure.

✅ The correct answer is option A.

2980. Carbon/hydrogen ratio (by weight) is maximum (out of following) for

gasoline

kerosene

light gas oil

heavy fuel oil

✅ The correct answer is option A.