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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 disappearing filament type optical pyrometer is based on the ________________?
A Wien’s law
B Seebeck effect
C Kirchoff’s law
D Peltier effect
Correct Answer: Wien’s law
A system with a double pole at the origin is unstable since the corresponding term in the time domain________________?
A Is a constant
B Grows exponentially with time
C Grows linearly with time
D Decays linearly with time
Correct Answer: Grows linearly with time
Gas chromatography is used for the measurement of ________________?
A Temperature
B Pressure
C Concentration
D Flow rate
Correct Answer: Concentration
Vapour actuated pressure spring thermometer does not require ambient temperature compensation. Ambient temperature compensation is provided in gas or liquid expansion pressure spring thermometer by__________________?
A Making the volume of thermometer bulb as large as conveniently possible
B Reducing the volume of the capillary to a minimum
C Reducing the volume of the receiving element to a minimum
D All A , B & C.
Correct Answer: All A , B & C.
Concentration of sugar solution can be determined by the__________________?
A Polarimetry
B Flame photometry
C Emission spectroscopy
D Oscillometry
Correct Answer: Polarimetry
A constant volume gas thermometer employing ______________ is used to measure sub-zero (i.e., < 0°C) temperature?
A Helium
B Hydrogen
C Nitrogen
D None of these
Correct Answer: Helium
Measurement of pressure in ammonia reactor is done by __________________?
A Bourdon gauge
B U-tube manometer
C Inclined tube manometer
D Pirani gauge
Correct Answer: Bourdon gauge
Composition of alloys can be determined by _________________?
A Polarograph
B Chromatograph
C Refractometer
D None of these
Correct Answer: Polarograph
The inverse Laplace transform of the function f(S) = 1/S (1 + S) is_________________?
A 1 + et
B 1 – et
C 1 + e-t
D 1 – e-t
Correct Answer: 1 – e-t
A sinusoidal variation in the input passing through a linear first order system _________________?
A Becomes more oscillatory (frequency increases)
B Becomes less oscillatory (frequency decreases)
C Gets amplified (magnitude increases)
D Gets attenuated (magnitude decreases)
Correct Answer: Gets attenuated (magnitude decreases)
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