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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

Flow rate of those fluids which are insensitive to changes in their density, viscosity or flow velocity profile can be best measured by a ________________?
A Magnetic flowmeter
B Pitot tube
C Flow nozzle type flowmeter
D Turbine flowmeter
Correct Answer: Magnetic flowmeter
pH meter has ____________________?
A One cell
B Two cells
C Three cells
D No cell
Correct Answer: Two cells
Relationship between absorption/evolution of heat at the thermocouple junctions and the current flow in the circuit is given by _____________ effect?
A Peltier
B Thomson
C Seebeck
D None of these
Correct Answer: Peltier
Dilatometer is used to measure __________________?
A Stress
B Strain
C Deflection
D Contraction/expansion due to changes in temperature
Correct Answer: Contraction/expansion due to changes in temperature
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
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