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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 frequency response of a dynamic element shows a constant magnitude ratio at all frequencies. The element exhibits a negative phase shift at all frequencies. The absolute value of the phase shift increases linearly with frequency. The element has the transfer function ?

A e-ηS

B (T1S + 1)/(T2S + 1)

C (T1S/(T2S + 1)

D (T1S + 1)/(T2S

Review Detailed Answer

Correct Answer: e-ηS

E.m.f. generated by thermocouples is of the order of ________________?

A Milli volts

B Micro volts

C Volts

D Kilo volts

Review Detailed Answer

Correct Answer: Milli volts

Liquid argon level in a pressurised storage tank (at 3 kg/cm2) is measured by a/an ____________________?

A Gage glass

B External float gage

C Differential pressure gage

D None of these

Review Detailed Answer

Correct Answer: Differential pressure gage

Mercury manometer (U-tube type) exemplifies a ______________ order system?

A Zero

B First

C Second

D Third

Review Detailed Answer

Correct Answer: Second

The experimental response of the controlled variable y(t) for a step change of magnitude ‘P’ in the manipulated variable x(t) is shown below: The appropriate transfer function of the process is_________________?

A (Q/P) e-(Q/R)S/(TdS + 1)

B (Q/R) e-TdS/(Q/P) (S + 1)

C (Q/P) e-TdS/(Q/R) (S + 1)

D (Q/R) e-(P/Q)S/(TdS + 1)

Review Detailed Answer

Correct Answer: (Q/P) e-TdS/(Q/R) (S + 1)

Smoke density of the flue gas going out of the chimney is measured by a __________________?

A Polarograph

B Thermal conductivity meter

C Photo electric cell

D Chromatograph

Review Detailed Answer

Correct Answer: Photo electric cell

Characteristic equation is the denominator of ____________ loop transfer function?

A Open

B Closed

C Both A. and B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Closed

Measurement of sub-zero Celsius temperature in industry is done most commonly by __________________?

A Thermocouples

B Resistance thermometers

C Gas thermometers

D Bi-metallic thermometers

Review Detailed Answer

Correct Answer: Resistance thermometers

Which of the following is not the triple point of water ?

A 32°R

B 273°K

C 492°R

D 32°F

Review Detailed Answer

Correct Answer: 32°R

Flow rate through an orifice is _____________ the pressure differential?

A Proportional to

B Inversely proportional to the square root of

C Proportional to the square root of

D Inversely proportional to the square of

Review Detailed Answer

Correct Answer: Proportional to

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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All Topics 9594

The frequency response of a dynamic element shows a constant magnitude ratio at all frequencies. The element exhibits a negative phase shift at all frequencies. The absolute value of the phase shift increases linearly with frequency. The element has the transfer function ?

E.m.f. generated by thermocouples is of the order of ________________?

Liquid argon level in a pressurised storage tank (at 3 kg/cm2) is measured by a/an ____________________?

Mercury manometer (U-tube type) exemplifies a ______________ order system?

The experimental response of the controlled variable y(t) for a step change of magnitude ‘P’ in the manipulated variable x(t) is shown below: The appropriate transfer function of the process is_________________?

Smoke density of the flue gas going out of the chimney is measured by a __________________?

Characteristic equation is the denominator of ____________ loop transfer function?

Measurement of sub-zero Celsius temperature in industry is done most commonly by __________________?

Which of the following is not the triple point of water ?

Flow rate through an orifice is _____________ the pressure differential?