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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.

Humidity of air can be determined by a__________________?

A Chromatograph

B Sling psychrometer

C Mass spectrometer

D Polarimeter

Review Detailed Answer

Correct Answer: Sling psychrometer

In a single tank system, the transfer function of level to inlet flow rate is__________________?

A R/TS

B R/(TS + 1)

C 1/TS

D None of these

Review Detailed Answer

Correct Answer: R/(TS + 1)

The closed loop pole of a stable second order system could be_______________?

A Both real and positive

B Complex conjugate with positive real parts

C Both real and negative

D One real positive and the other real negative

Review Detailed Answer

Correct Answer: Both real and positive

Which thermocouple can be used to measure a temperature of around 1400°C ?

A Copper-constantan

B Aluminium-Chromel

C Platinum-platinum + rhodium

D None of these

Review Detailed Answer

Correct Answer: Platinum-platinum + rhodium

Which of the following measurements can be made by the measurement of emf ?

A pH value

B Degree of hydrolysis

C Composition of complex ions

D All A., B. & C.

Review Detailed Answer

Correct Answer: All A., B. & C.

Sub-zero temperature (< 0°C) can be measured by a constant volume gas thermometer employing ?

A Helium

B Nitrogen

C Hydrogen

D None of these

Review Detailed Answer

Correct Answer: Helium

Specific conductance is defined as the reciprocal of resistance in ohms of 1c.c. of liquid at a specified temperature. Its value for distilled water is about ______________ micro mho/cm3?

A 50

B 100

C 10

D 1

Review Detailed Answer

Correct Answer: 1

An ideal PID controller has the transfer function [1 + (1/0.55) + 0.25]. The frequency at which the magnitude ratio of the controller is 1, is________________?

A 0.5/0.2

B 0.2/0.5

C 0.2 × 0.5

D 1/√(0.2 × 0.5)

Review Detailed Answer

Correct Answer: 0.2 × 0.5

Phase lag of the frequency response of a second order system to a sinusoidal forcing function______________?

A Is 30°

B Is 90° at the most

C Approaches 180° asymptotically

D Is 120°

Review Detailed Answer

Correct Answer: Approaches 180° asymptotically

Which of the following is an undesirable dynamic characteristic of an instrument ?

A Reproducibility

B Dead zone

C Time lag

D Static error

Review Detailed Answer

Correct Answer: Time lag

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Humidity of air can be determined by a__________________?

In a single tank system, the transfer function of level to inlet flow rate is__________________?

The closed loop pole of a stable second order system could be_______________?

Which thermocouple can be used to measure a temperature of around 1400°C ?

Which of the following measurements can be made by the measurement of emf ?

Sub-zero temperature (< 0°C) can be measured by a constant volume gas thermometer employing ?

Specific conductance is defined as the reciprocal of resistance in ohms of 1c.c. of liquid at a specified temperature. Its value for distilled water is about ______________ micro mho/cm3?

An ideal PID controller has the transfer function [1 + (1/0.55) + 0.25]. The frequency at which the magnitude ratio of the controller is 1, is________________?

Phase lag of the frequency response of a second order system to a sinusoidal forcing function______________?

Which of the following is an undesirable dynamic characteristic of an instrument ?