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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

________________ property of steel increases by addition of large amount of silicon in it?

A Mechanical

B Machining

C Magnetic

D Refractory

Review Detailed Answer

Correct Answer: Magnetic

In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is__________________?

A More

B Less

C Equal

D Much more

Review Detailed Answer

Correct Answer: Equal

At the point of boundary layer separation in fluid flow, the _____________________?

A Shear stress is maximum

B Velocity gradient is flat

C Density variation is maximum

D Shear stress is zero

Review Detailed Answer

Correct Answer: Shear stress is maximum

Uniform ramming of sand in green sand moulding process leads to____________________?

A Reduced chance of gas porosity

B Greater dimensional stability of the casting

C Uniform flow of molten metal into the mould cavity

D Less sand expansion type of casting defect

Review Detailed Answer

Correct Answer: Greater dimensional stability of the casting

____________________ flux is used for the extraction of metal from its self fluxing ores?

A No

B Acid

C Basic

D Neutral

Review Detailed Answer

Correct Answer: No

Percentage of differential pressure lost in a Venturimeter with a tapering of 15° may be about___________________?

A 1

B 10

C 25

D 50

Review Detailed Answer

Correct Answer: 1

During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to____________________?

A Time

B Square root of time

C Square of time

D Cube of time

Review Detailed Answer

Correct Answer: Square root of time

Property responsible for the talcum powder to cling to the skin is the__________________?

A Capillary action

B Adhesion

C Cohesion

D Surface tension

Review Detailed Answer

Correct Answer: Adhesion

Breakeven point represents the condition, when the company runs under no profit no loss condition. In break even analysis, total cost comprises of fixed cost________________?

A Only

B Plus variable cost

C Plus overhead cost

D Plus selling expenses

Review Detailed Answer

Correct Answer: Plus variable cost

Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are ?

A Cobalt, chromium & tungsten

B Cobalt, chromium & nickel

C Molybdenum, tungsten & chromium

D Cobalt, zirconium & molybdenum

Review Detailed Answer

Correct Answer: Cobalt, chromium & tungsten

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

________________ property of steel increases by addition of large amount of silicon in it?

In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is__________________?

At the point of boundary layer separation in fluid flow, the _____________________?

Uniform ramming of sand in green sand moulding process leads to____________________?

____________________ flux is used for the extraction of metal from its self fluxing ores?

Percentage of differential pressure lost in a Venturimeter with a tapering of 15° may be about___________________?

During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to____________________?

Property responsible for the talcum powder to cling to the skin is the__________________?

Breakeven point represents the condition, when the company runs under no profit no loss condition. In break even analysis, total cost comprises of fixed cost________________?

Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are ?