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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

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
Which of the following controllers has maximum offset ?
A P-controller
B P-I controller
C P-D controller
D P-I-D controller
Correct Answer: P-controller
Which of the following flow-metering instruments is an areameter ?
A Venturimeter
B Rotameter
C Pitot tube
D Hot wire anemometer
Correct Answer: Rotameter
A magnetic flowmeter is_________________?
A Based on the principle of Faraday’s law
B Capable of measuring the flow rate of slurries and electrolytes
C Based on the linear relationship between the fluid flow rate and the induced voltage
D All A., B. and C.
Correct Answer: All A., B. and C.
Which is the most suitable instrument for measuring pressure below 3 microns ?
A Mcleod gauge
B Alphatron
C Ionisation gauge
D Bourdon gauge
Correct Answer: Ionisation gauge
______________ is undesirable in thermocouples used in industries ?
A Linear relation of emf to temperature
B Corrosion resistance
C Oxidation resistance
D Non-linear relation of emf to temperature
Correct Answer: Non-linear relation of emf to temperature
Small furnace draught is accurately measured by an inclined tube manometer, in which the manometric liquid used most commonly is __________________?
A Water
B Carbon tetrachloride
C Paraffin
D Ethylene glycol
Correct Answer: Paraffin
Which of the following relates the absorption & evolution of heat at the junctions of a thermocouple to the current flow in the circuit ?
A Seebeck effect
B Peltier effect
C Joule heating effect
D Thomson effect
Correct Answer: Peltier effect
The term analogous to the electrical current in a thermal system is the_________________?
A Temperature difference
B Heat flow rate
C Heat content in the system
D None of these
Correct Answer: Heat flow rate
The open loop transfer function of a control system is KR/(1 + TS). This represents ______________?
A A first order system
B Dead time system
C A first order time lag
D A second order system
Correct Answer: A first order system
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