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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.

The heat flux in the nucleate boiling regimes is proportional to (where, ΔT = excess temperature) ?

A (ΔT)2

B (ΔT)4

C (ΔT)3

D √(ΔT)

Review Detailed Answer

Correct Answer: (ΔT)3

In a multiple effect evaporator, the effect of boiling point elevation is to______________________?

A Reduce the capacity

B Reduce the economy

C Increase the economy

D None of these

Review Detailed Answer

Correct Answer: Reduce the capacity

Film condensation is promoted on a/an _______________________ surface?

A Oily

B Coated

C Clean & smooth

D Dirty

Review Detailed Answer

Correct Answer: Clean & smooth

In a boiling curve, the peak heat flux is called the _____________ point?

A Nusselt

B Leidenfrost

C Boiling

D Burnout

Review Detailed Answer

Correct Answer: Leidenfrost

In case of _____________ boiling, the bubbles formed on a submerged hot surface get absorbed in the mass of the liquid?

A Nucleate

B Pool

C Low pressure

D None of these

Review Detailed Answer

Correct Answer: Pool

Nusselt number (for forced convection heat transfer) is a function of the _____________ number?

A Prandtl

B Reynolds

C Both A. & B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Reynolds

The separation of liquid droplets from the vapor is done by a/an _____________ in the evaporators?

A Steam ejector

B Entrainment separator

C Compressor

D Vacuum pump

Review Detailed Answer

Correct Answer: Entrainment separator

For the same heat transfer area and the terminal conditions, the ratio of the capacities of a single effect evaporator to a triple effect evaporator is_________________?

A 3

B 0.33

C 1

D 1.33

Review Detailed Answer

Correct Answer: 1

In forced circulation, the heating element is injected_________________?

A Internally

B Externally

C Both A. and A.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Internally

According to Reynolds analogy, Stanton number is equal to (where, f = Fanning friction factor) ?

A 2f

B f

C f/2

D f/4

Review Detailed Answer

Correct Answer: f

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The heat flux in the nucleate boiling regimes is proportional to (where, ΔT = excess temperature) ?

In a multiple effect evaporator, the effect of boiling point elevation is to______________________?

Film condensation is promoted on a/an _______________________ surface?

In a boiling curve, the peak heat flux is called the _____________ point?

In case of _____________ boiling, the bubbles formed on a submerged hot surface get absorbed in the mass of the liquid?

Nusselt number (for forced convection heat transfer) is a function of the _____________ number?

The separation of liquid droplets from the vapor is done by a/an _____________ in the evaporators?

For the same heat transfer area and the terminal conditions, the ratio of the capacities of a single effect evaporator to a triple effect evaporator is_________________?

In forced circulation, the heating element is injected_________________?

According to Reynolds analogy, Stanton number is equal to (where, f = Fanning friction factor) ?