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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.

Addition of ____________________ to steel does not help in improving its machinability?

A Sulphur

B Silicon

C Lead

D Phosphorous

Review Detailed Answer

Correct Answer: Silicon

In electrical resistance welding, distortion results from the use of improper________________?

A Clamping methods

B Electrodes

C Current

D Filler material

Review Detailed Answer

Correct Answer: Clamping methods

_________________ can replace tungsten in high speed steel ?

A Chromium

B Vanadium

C Cobalt

D Molybdenum

Review Detailed Answer

Correct Answer: Cobalt

Multistage compression of air as compared to single stage compression offers the advantage of______________?

A Power saving per unit weight of air delivered

B Moisture elimination in the inter-stage cooler

C Increased volumetric efficiency

D All A , B. & C.

Review Detailed Answer

Correct Answer: All A , B. & C.

The cathode in an electrochemical cell always carries____________________?

A Negative charge

B Positive charge

C Zero charge

D Positive or negative charge depending upon the nature of the cell

Review Detailed Answer

Correct Answer: Negative charge

Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young’s modulus, G = Modulus of rigidity or shear modulus v = Poisson’s ratio) ?

A E = 2G (1 + v)

B E = G (1 + v)

C E = G (1 + v)/2

D E = 2G (1 + 2v)

Review Detailed Answer

Correct Answer: E = 2G (1 + v)

Cold chisel & hammers are made of_________________?

A High speed steel

B High carbon steel

C Forged steel

D Mild steel

Review Detailed Answer

Correct Answer: High carbon steel

Dislocation cross-slip is difficult in those materials, which have___________________?

A Large number of slip systems

B High work hardening rate

C Coarse grain size

D Low stacking fault energy

Review Detailed Answer

Correct Answer: Low stacking fault energy

In a counter flow heat exchanger, hot fluid enters at 170°C & leaves at 150°C, while the cold fluid enters at 50°C & leaves at 70°C. The arithmetic mean temperature difference in this case is ______________ °C?

A 20

B 60

C 120

D ∞

Review Detailed Answer

Correct Answer: ∞

For a small scale toy factory, the fixed cost per month is Rs. 5000/-. The variable cost per toy is Rs. 20 and sales price is Rs. 30 per toy. The break even production per month will be _________________ toys ?

A 250

B 500

C 1000

D 3000

Review Detailed Answer

Correct Answer: 500

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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All Topics 9594

Addition of ____________________ to steel does not help in improving its machinability?

In electrical resistance welding, distortion results from the use of improper________________?

_________________ can replace tungsten in high speed steel ?

Multistage compression of air as compared to single stage compression offers the advantage of______________?

The cathode in an electrochemical cell always carries____________________?

Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young’s modulus, G = Modulus of rigidity or shear modulus v = Poisson’s ratio) ?

Cold chisel & hammers are made of_________________?

Dislocation cross-slip is difficult in those materials, which have___________________?

In a counter flow heat exchanger, hot fluid enters at 170°C & leaves at 150°C, while the cold fluid enters at 50°C & leaves at 70°C. The arithmetic mean temperature difference in this case is ______________ °C?

For a small scale toy factory, the fixed cost per month is Rs. 5000/-. The variable cost per toy is Rs. 20 and sales price is Rs. 30 per toy. The break even production per month will be _________________ toys ?