M C Q s D r i v e

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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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.

______________ controller has the maximum stabilising time?

A P
B PD
C PI
D PID
Correct Answer: P

Compositional analysis of ______________ is done using mass spectrometer?

A An isotope
B Natural gas
C A solid
D An alloy
Correct Answer: An isotope

Which of the following relates the emf. generated in a single homogeneous wire to the temperature difference ?

A Peltier effect
B Thomson effect
C Seebeck effect
D None of these
Correct Answer: Thomson effect

Liquid discharge from a tank or reservoir cannot be measured by __________________?

A Orificemeter
B Weirs
C Mouthpieces
D Notches
Correct Answer: Orificemeter

Out of the following temperature measuring instruments, the measurement accuracy will be minimum for the ________________?

A Mercury in glass thermometer
B Optical pyrometer
C Iron-constantan thermocouple
D Alcohol filled thermometer
Correct Answer: Optical pyrometer

Which of the following is a desirable characteristic of an instrument ?

A High drift
B High fidelity
C High measuring lag
D Poor reproducibility
Correct Answer: High fidelity

Working principle of radiation pyrometer is based on the ________________?

A Wien’s law
B Kirchoff’s law
C Stefan-Boltzmann law
D Seebeck effect
Correct Answer: Stefan-Boltzmann law

The response of two tanks of same size and resistance in series is __________________?

A Under damped
B Critically damped
C Over damped
D None of the above
Correct Answer: Critically damped

Which of the systems having following transfer functions is stable ?

A 1/(s2 + 2)
B 1/(s2 – 2s + 3)
C 1/(s2 + 2s + 2)
D exp (-20s)/(s2 + 2s – 1)
Correct Answer: 1/(s2 + 2s + 2)

Emission spectroscopy is used for__________________?

A Solids and metal analysis
B Determining water purity
C Determination of CO2 in gases
D NOx determination
Correct Answer: Solids and metal analysis