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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.

Hot wire anemometer is used for the measurement of___________________?

A Flow rates of fluids

B Flow rates of granular solids

C Very high temperature

D Thermal conductivity of gases

Review Detailed Answer

Correct Answer: Flow rates of fluids

Emf developed by a thermocouple while measuring a temperature of 800°C is about 31 mV. The type of thermocouple used is________________?

A Chromel-alumel

B Iron-constantan

C Platinum-platinum + rhodium

D None of these

Review Detailed Answer

Correct Answer: Chromel-alumel

Which of the following is never used as an element of industrial resistance thermometer ?

A Lead

B Nickel

C Copper

D 30% iron + 70% nickel

Review Detailed Answer

Correct Answer: Lead

Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an_______________?

A Chromel-alumel thermocouple

B Optical pyrometer

C Radiation pyrometer

D Either B. or C.

Review Detailed Answer

Correct Answer: Either B. or C.

Liquid flow rate in an open channel cannot be measured by a/an __________________?

A Orifice meter

B Cipolletti weir

C Rectangular weir

D V-notch

Review Detailed Answer

Correct Answer: Orifice meter

Conversion formula for converting amplitude ratio (AR) into decibels is ________________?

A Decibel = 20 log10 (AR)

B Decibel = 20 loge (AR)

C Decibel = 20 log10 (AR)0.5

D Decibel = 20 loge (AR)0.5

Review Detailed Answer

Correct Answer: Decibel = 20 log10 (AR)

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

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Hot wire anemometer is used for the measurement of___________________?

Emf developed by a thermocouple while measuring a temperature of 800°C is about 31 mV. The type of thermocouple used is________________?

Which of the following is never used as an element of industrial resistance thermometer ?

Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an_______________?

Liquid flow rate in an open channel cannot be measured by a/an __________________?

Conversion formula for converting amplitude ratio (AR) into decibels is ________________?

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 ?