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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.

All Topics  9594

______________ 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
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