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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.

Change of angle of refraction with composition comprises the working principle of a___________________?

A Polarimeter

B Polarograph

C Spectrometer

D Refractometer

Review Detailed Answer

Correct Answer: Refractometer

Routh test_________________?

A Criterion provides information about the actual location of roots

B Cannot be used to test the stability of a control system containing transportation lag

C Criterion is not applicable to systems with polynomial characteristic equation

D Cannot determine as to how many roots of the characteristics equation have positive real roots

Review Detailed Answer

Correct Answer: Cannot be used to test the stability of a control system containing transportation lag

Thermodynamic Celsius scale of temperature measurement is________________?

A Defined on the basis of melting point of ice and evaporation temperature of water vapor

B Defined on the basis of melting point of ice and condensation temperature of water vapor

C Having an interval of 100° between ice point to steam point

D Both B. and C.

Review Detailed Answer

Correct Answer: Both B. and C.

Bourdon gauges are used for measuring pressure (kg/cm2) ?

A < atmospheric

B > 2 (gauge)

C 10 (absolute)

Review Detailed Answer

Correct Answer: > 2 (gauge)

Radiation pyrometers as compared to thermocouples____________________?

A Has a slower speed of response

B Can measure higher temperature

C Can’t measure the temperature of moving objects

D Is more affected by corrosive atmosphere

Review Detailed Answer

Correct Answer: Can measure higher temperature

Number of poles in a system with transfer function 1/(s2 + 2s2 + 1) is ________________?

A 2

B 5

C 3

D 1

Review Detailed Answer

Correct Answer: 3

Thermocouple in a thermal well behaves as a true ________________?

A First order system

B Second order system (overdamped)

C Multiple first order system

D Second order system (underdamped)

Review Detailed Answer

Correct Answer: Multiple first order system

Stability of a control system containing a transportation lag can be best analysed by_______________?

A Routh test

B Root locus methods

C Frequency response methods

D None of these

Review Detailed Answer

Correct Answer: Frequency response methods

Accurate temperature measurement performance of a radiation pyrometer cannot be affected, if the ?

A Enhancement or attenuation of radiation occurs in the sighting path

B Object and surrounding are at almost the same temperature

C Object has varying emissivity

D Object is transparent

Review Detailed Answer

Correct Answer: Object and surrounding are at almost the same temperature

The open loop transfer function of a process is K [{(s + 1) (s + 4)}/{(s + 2) (s + 3)}]. In the root locus diagram, the poles will be at ___________________?

A -1, -4

B 1, 4

C -2, -3

D 2, 3

Review Detailed Answer

Correct Answer: -2, -3

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Change of angle of refraction with composition comprises the working principle of a___________________?

Routh test_________________?

Thermodynamic Celsius scale of temperature measurement is________________?

Bourdon gauges are used for measuring pressure (kg/cm2) ?

Radiation pyrometers as compared to thermocouples____________________?

Number of poles in a system with transfer function 1/(s2 + 2s2 + 1) is ________________?

Thermocouple in a thermal well behaves as a true ________________?

Stability of a control system containing a transportation lag can be best analysed by_______________?

Accurate temperature measurement performance of a radiation pyrometer cannot be affected, if the ?

The open loop transfer function of a process is K [{(s + 1) (s + 4)}/{(s + 2) (s + 3)}]. In the root locus diagram, the poles will be at ___________________?