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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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.

Nickel percentage in invar which is an iron-nickel alloy, and is used as a thermocouple material is __________________?

A 12

B 36

C 54

D 68

Review Detailed Answer

Correct Answer: 36

Stroboscope is used for the measurement of _________________?

A Rpm of a flywheel

B Frequency of light

C Depression of freezing point

D Liquid level under pressure

Review Detailed Answer

Correct Answer: Rpm of a flywheel

Response of a linear control system for a change in set point is called __________________?

A Frequency response

B Transient response

C Servo problem

D Regulator problem

Review Detailed Answer

Correct Answer: Servo problem

Which of the following is not a composition measuring instrument ?

A Thermal conductivity cell

B Mass spectrometer

C Polarograph

D Hot wire anemometer

Review Detailed Answer

Correct Answer: Hot wire anemometer

Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in ____________ in the electrical resistance of the wire ?

A No change

B Decrease

C Increase

D Exponential decrease

Review Detailed Answer

Correct Answer: Increase

Optical activity of a solution can be determined using a ___________________?

A Polarimeter

B Polarograph

C Dilatometer

D Refractometer

Review Detailed Answer

Correct Answer: Polarimeter

Which of the following thermocouples can measure the maximum temperature ?

A Platinum-rhodium

B Tungsten-molybdenum

C Chromel-alumel

D Iron-constantan

Review Detailed Answer

Correct Answer: Tungsten-molybdenum

Emf generated in a thermocouple depends on the temperature ___________________?

A Of cold junction only

B Of hot junction only

C Difference between hot and cold junctions

D Difference between cold junction and atmospheric temperature

Review Detailed Answer

Correct Answer: Difference between hot and cold junctions

Which of the following filled system expansion thermometer has the capability to measure the lowest temperature ?

A Mercury in glass thermometer

B Mercury in steel thermometer

C Alcohol in glass thermometer

D Fused metal (Na or K) in steel thermometer

Review Detailed Answer

Correct Answer: Alcohol in glass thermometer

Working principle of mercury in glass thermometer is based on volumetric expansion of mercury with increase in temperature. Which of the following undergoes minimum volumetric expansion for a given temperature change ?

A Water

B Mercury

C Methyl alcohol

D Carbon-tetrachloride

Review Detailed Answer

Correct Answer: Mercury

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Nickel percentage in invar which is an iron-nickel alloy, and is used as a thermocouple material is __________________?

Stroboscope is used for the measurement of _________________?

Response of a linear control system for a change in set point is called __________________?

Which of the following is not a composition measuring instrument ?

Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in ____________ in the electrical resistance of the wire ?

Optical activity of a solution can be determined using a ___________________?

Which of the following thermocouples can measure the maximum temperature ?

Emf generated in a thermocouple depends on the temperature ___________________?

Which of the following filled system expansion thermometer has the capability to measure the lowest temperature ?

Working principle of mercury in glass thermometer is based on volumetric expansion of mercury with increase in temperature. Which of the following undergoes minimum volumetric expansion for a given temperature change ?