MCQsDrive | MCQsDrive

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.

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

Typical specifications for design stipulates the gain margin and phase margin to be respectively__________________?

A > 1.7 and > 30°

B 30°

C < 1.7 and 1.7 and < 30°

Review Detailed Answer

Correct Answer: > 1.7 and > 30°

Instrumentation in a plant offers the advantage of_______________?

A Greater safety of operation

B Better quality of product

C Greater operation economy

D All A., B. and C.

Review Detailed Answer

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

Magnetic flowmeters are generally not used for the velocity/flow measurement of hydrocarbons due to their ?

A Low thermal conductivity

B Low electrical conductivity

C High viscosity index

D Low flash point

Review Detailed Answer

Correct Answer: Low electrical conductivity

Routh stability method uses ______________ loop transfer function?

A Open

B Closed

C Either A. or B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Closed

The function of a transducer is to _______________ ?

A Modify the input signal

B Amplify the input signal

C Convert the primary signal into a more useful quantity, usually an electric impulse

D Codify/decodify the input signal

Review Detailed Answer

Correct Answer: Convert the primary signal into a more useful quantity, usually an electric impulse

_______________ thermometer cannot measure sub-zero (< 0° C) temperature ?

A Mercury in glass

B Bimetallic

C Vapor pressure

D Resistance

Review Detailed Answer

Correct Answer: Bimetallic

Showing 7911 to 7920 of 9594 results

Contact Info

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

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 ?

Typical specifications for design stipulates the gain margin and phase margin to be respectively__________________?

Instrumentation in a plant offers the advantage of_______________?

Magnetic flowmeters are generally not used for the velocity/flow measurement of hydrocarbons due to their ?

Routh stability method uses ______________ loop transfer function?

The function of a transducer is to _______________ ?

_______________ thermometer cannot measure sub-zero (< 0° C) temperature ?