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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.

Temperature and pressure in urea autoclave is_________________?

A 120°C and 300 atm

B 190°C and 200 atm

C 400°C and 550 atm

D 200°C and 10 atm

Review Detailed Answer

Correct Answer: 190°C and 200 atm

_____________ is the undesirable by-product produced in the manufacture of urea ?

A Ammonium carbonate

B Biuret

C Carbon dioxide

D Ammonium carbamate

Review Detailed Answer

Correct Answer: Biuret

A Potassic fertiliser contains 50% K2O. It could be _________________?

A Potassium sulphate

B Potassium chloride

C A mixture of NaCl + KCl

D None of these

Review Detailed Answer

Correct Answer: Potassium sulphate

Prilling of urea should be accomplished (in a sprayer) just above the melting point of urea with minimum of retention time, otherwise it will result in__________________?

A Low bulk density product

B Biuret formation

C Non-spherical prills

D Substantially wet non-flowing and sticky product

Review Detailed Answer

Correct Answer: Biuret formation

Which nutrient in fertiliser makes the plant stems stronger and increases branching ?

A Nitrogen

B Phosphorous

C Potassium

D Calcium

Review Detailed Answer

Correct Answer: Phosphorous

Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the ___________________?

A Presence of an inert atmosphere

B Presence of a reducing atmosphere

C Absence of air

D Presence of an oxidising atmosphere

Review Detailed Answer

Correct Answer: Absence of air

In natural gas, the C/H ratio (by weight) varies in the range of_________________?

A 3-4

B 8-10

C 15-17

D 20-25

Review Detailed Answer

Correct Answer: 3-4

CaH4(PO4)2 is the chemical formula of ___________________?

A Superphosphate

B Triple superphosphate

C Calcium phosphate

D Meta phosphoric acid

Review Detailed Answer

Correct Answer: Triple superphosphate

C/H ratio (by weight) of naphtha used in nitrogenous fertiliser making is about_________________?

A 2

B 6

C 13

D 20

Review Detailed Answer

Correct Answer: 6

Temperature and pressure in ammonia converter is_________________?

A 200 atm, 1000°C

B 450 atm, 200°C

C 450 atm, 550°C

D 450 atm, 1000°C

Review Detailed Answer

Correct Answer: 450 atm, 550°C

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Temperature and pressure in urea autoclave is_________________?

_____________ is the undesirable by-product produced in the manufacture of urea ?

A Potassic fertiliser contains 50% K2O. It could be _________________?

Prilling of urea should be accomplished (in a sprayer) just above the melting point of urea with minimum of retention time, otherwise it will result in__________________?

Which nutrient in fertiliser makes the plant stems stronger and increases branching ?

Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the ___________________?

In natural gas, the C/H ratio (by weight) varies in the range of_________________?

CaH4(PO4)2 is the chemical formula of ___________________?

C/H ratio (by weight) of naphtha used in nitrogenous fertiliser making is about_________________?

Temperature and pressure in ammonia converter is_________________?