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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.

For a fluid flowing in an annulus space, the wetted perimeter for heat transfer and pressure drop are__________________?

A Same

B Different

C Never different

D Linearly related

Review Detailed Answer

Correct Answer: Different

1000 kg of wet solids are to be dried from 60% to 20% moisture (by weight). The mass of moisture removed in kg is__________________?

A 520

B 200

C 400

D 500

Review Detailed Answer

Correct Answer: 400

Dropwise condensation occurs on ______________ surfaces?

A Clean and dirt free

B Smooth clean

C Contaminated cooling

D Polished

Review Detailed Answer

Correct Answer: Contaminated cooling

Conduction occurs in the buffer zone for a fluid flowing through a heated pipe, only when Prandtl number is________________?

A 0.1

B > 1

C < 1

D 1

Review Detailed Answer

Correct Answer: 0.1

The type of liquor circulation system to be ‘ employed in evaporators (viz. natural or forced circulation) is determined mainly by the ______________ of the liquid?

A Viscosity

B Density

C Thermal conductivity

D Corrosive nature

Review Detailed Answer

Correct Answer: Viscosity

For a given ambient air temperature with increase in the thickness of insulation of a hot cylindrical pipe, the rate of heat loss from the surface would ?

A Decrease

B Increase

C First decrease and then increase

D First increase and then decrease

Review Detailed Answer

Correct Answer: First increase and then decrease

In a backward feed multiple effect evaporator ___________________ ?

A Feed is introduced in the first effect

B Feed flows from low pressure to high pressure

C No pumps are required between successive effects

D None of these

Review Detailed Answer

Correct Answer: Feed flows from low pressure to high pressure

The sum of reflectivity and absorptivity for an opaque body is equal to____________________?

A 0.5

B 1

C 0

D 2

Review Detailed Answer

Correct Answer: 1

Steam is routed through the tube in case of a ______________ evaporator?

A Basket type

B Horizontal tube

C Short tube vertical

D Long tube vertical

Review Detailed Answer

Correct Answer: Horizontal tube

Multiple effect evaporation is generally recommended, when the______________________?

A Large scale evaporation of liquor is needed

B Corrosive liquids are to be concentrated

C Fuel is cheaply available

D Evaporation on small scale is to be done

Review Detailed Answer

Correct Answer: Large scale evaporation of liquor is needed

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

For a fluid flowing in an annulus space, the wetted perimeter for heat transfer and pressure drop are__________________?

1000 kg of wet solids are to be dried from 60% to 20% moisture (by weight). The mass of moisture removed in kg is__________________?

Dropwise condensation occurs on ______________ surfaces?

Conduction occurs in the buffer zone for a fluid flowing through a heated pipe, only when Prandtl number is________________?

The type of liquor circulation system to be ‘ employed in evaporators (viz. natural or forced circulation) is determined mainly by the ______________ of the liquid?

For a given ambient air temperature with increase in the thickness of insulation of a hot cylindrical pipe, the rate of heat loss from the surface would ?

In a backward feed multiple effect evaporator ___________________ ?

The sum of reflectivity and absorptivity for an opaque body is equal to____________________?

Steam is routed through the tube in case of a ______________ evaporator?

Multiple effect evaporation is generally recommended, when the______________________?