Chemical Engineering Basics MCQ Questions & Answers

41

__________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.

A) Borosilicate B) High silica C) Supermax D) Lead

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Answer & Solution

Answer: Option C

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42

Which of the following is not a suitable solid lubricant?

A) Talc B) Molybdenum disulphide C) Graphite D) None of these

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Answer & Solution

Answer: Option D

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43

Diamond does not conduct electricity, because

A) Its structure is very compact B) No free electrons are present C) It is of crystalline nature D) There are only carbon atoms present

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Answer & Solution

Answer: Option B

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44

Which one can be directly solidified from gaseous state wihtout entering into liquid state?

A) Helium B) Oxygen C) Carbon dioxide D) None of these

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Answer & Solution

Answer: Option C

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45

Failure of a material is attributed to __________ if it fails below its yield point.

A) Impact loading B) Fatigue C) Creep D) Straining

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Answer & Solution

Answer: Option B

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46

Increasing sulphur content in pig iron tends to make it

A) Soft B) Hard C) Tough D) Ductile & malleable

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Answer & Solution

Answer: Option B

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47

Springback in sheet metal bending depends on the

A) Elastic limit B) Bend radius C) Degree of bend D) Thickness of sheet

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Answer & Solution

Answer: Option D

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48

Number of electrons in the outermost orbit of a semi-conductor is

A) 2 B) 4 C) 6 D) 8

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Answer & Solution

Answer: Option B

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49

Pick out the wrong statement about powder metallurgy technique.

A) Powder metallurgy techniques are applied at room temperature B) Final product in powder metallurgy is not necessarily metallic powder C) The final product in powder metallurgy is made from metallic powder D) Silver and nickel when melted together do not mix to form an alloy ; however alloy of these constituents can be made by powder metallurgy technique

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Answer & Solution

Answer: Option A

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50

Which of the following is not used as a bearing material?

A) Copper-lead alloys B) Babbits C) Bronzes D) Cermets

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Answer & Solution

Answer: Option D

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Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering