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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.

Which of the following relationship is valid for the equilibrium position of the float in a Rotameter? (Where, Df= Drag force on the float Bf = Buoyant force on the float Wf = Weight of the float)?

A Df + Bf = Wf

B Df = Bf + Wf

C Df + Bf + Wf =0

D None of these

Review Detailed Answer

Correct Answer: Df + Bf = Wf

The equation relating friction factor to Reynold number, f-0.5 = 4 loge (NRe/√f)-0.4, is called the _____________ equation?

A Nikuradse

B Von-Karman

C Blasius

D Colebrook

Review Detailed Answer

Correct Answer: Nikuradse

Applicability of Bernoulli’s equation is limited to a/an _____________ fluid, that does not exchange shaft work with the surroundings?

A Incompressible

B Non-viscous

C Both A. and B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Both A. and B.

Potential flow is characterised by the___________________?

A Irrotational and frictionless flow

B Irrotational and frictional flow

C One in which dissipation of mechanical energy into heat occurs

D Formation of eddies within the stream

Review Detailed Answer

Correct Answer: Irrotational and frictionless flow

Viscosity of water at 40°C lies in the range of___________________?

A 1 × 10-3 to 2 × 10-3 kg/m.s

B 0.5 × 10-3 to 1 × 10-3 kg/m.s

C 1 to 2 kg/m.s

D 0.5 to 1 kg/m.s

Review Detailed Answer

Correct Answer: 0.5 × 10-3 to 1 × 10-3 kg/m.s

Prandtl mixing length is___________________?

A Applicable to laminar flow problems

B A universal constant

C Zero at the pipe wall

D None of these

Review Detailed Answer

Correct Answer: Zero at the pipe wall

The pressure co-efficient is the ratio of pressure forces to ______________ forces?

A Viscous

B Inertial

C Gravity

D Surface tension

Review Detailed Answer

Correct Answer: Viscous

In magnetic flow meters, voltage generation is________________?

A Due to the motion of conducting fluid through an externally generated uniform field

B Proportional to the fluid velocity

C Both A. and B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Both A. and B.

Which of the following is a Newtonian fluid ?

A Rubber latex

B Sewage sludge

C Quicksand

D Non-colloidal solution

Review Detailed Answer

Correct Answer: Non-colloidal solution

In which of the following body shapes, the pressure drag is large compared to the friction drag ?

A Stream line body

B Two dimensional body

C Bluff body

D None of these

Review Detailed Answer

Correct Answer: Bluff body

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Which of the following relationship is valid for the equilibrium position of the float in a Rotameter? (Where, Df= Drag force on the float Bf = Buoyant force on the float Wf = Weight of the float)?

The equation relating friction factor to Reynold number, f-0.5 = 4 loge (NRe/√f)-0.4, is called the _____________ equation?

Applicability of Bernoulli’s equation is limited to a/an _____________ fluid, that does not exchange shaft work with the surroundings?

Potential flow is characterised by the___________________?

Viscosity of water at 40°C lies in the range of___________________?

Prandtl mixing length is___________________?

The pressure co-efficient is the ratio of pressure forces to ______________ forces?

In magnetic flow meters, voltage generation is________________?

Which of the following is a Newtonian fluid ?

In which of the following body shapes, the pressure drag is large compared to the friction drag ?