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Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

Learn Chemical Engineering Basics MCQ questions & answers are available for a Chemical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Chemical Engineering Basics MCQ question is the important chapter for a Chemical Engineering and GATE students. Page-5 section-10

Each section contains 100 MCQs on Chemical Engineering Basics .
41
Pick out the wrong conversion of absolute & kinematic viscosities.
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Answer & Solution
Answer: Option C
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42
Which of the following metals is not subjected to electrolytic refinning/purification?
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Answer & Solution
Answer: Option C
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43
All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in which neutron is absent.
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Answer & Solution
Answer: Option B
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44
An abrupt and sudden fall in the readinp of barometer is an indication of the
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Answer & Solution
Answer: Option A
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45
The reductant used in the extraction of magnesium from calcined dolomite via Pidgeon's process is
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Answer & Solution
Answer: Option C
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46
__________ is used as a material of construction for the blade of power saw.
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Answer: Option D
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47
The most important consideration in value engineering is the
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Answer: Option B
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48
The most important consideration in value engineering is the
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Answer: Option B
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49
Electrometallurgy is not involved in the extraction of __________ from its ore.
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Answer: Option D
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50
Which of the following alloying elements reduces the formation of iron sulphide in steel?
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Answer & Solution
Answer: Option C
Solution:
Manganese is added to steel to reduce the formation of iron sulphide (FeS).

Sulphur present in steel tends to form iron sulphide, which causes brittleness and hot shortness.

When manganese is added, it preferentially combines with sulphur to form manganese sulphide (MnS), which is less harmful and more evenly distributed in the steel.

Cobalt improves magnetic properties, Nickel improves toughness and corrosion resistance, and Vanadium increases strength and wear resistance.

Therefore, the alloying element that reduces the formation of iron sulphide in steel is Manganese.