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.

The ____________ of the fluid contained in the temperature sensing element (i.e., bulb) of filled system thermometers changes with change in temperature ?

A Pressure

B Volume

C Viscosity

D All A., B. and C.

Review Detailed Answer

Correct Answer: All A., B. and C.

Thermistor, which has high temperature co-efficient of resistivity, is used as the sensing element in resistance thermometer. It is a/an ?

A Insulator

B Conductor

C Solid semi-conductor

D Liquid semi-conductor

Review Detailed Answer

Correct Answer: Solid semi-conductor

Thermistors are used in ____________ devices?

A Voltage measuring

B Temperature measuring

C Temperature compensating

D Both B. & C.

Review Detailed Answer

Correct Answer: Both B. & C.

The ____________ of a vapor pressure thermometer is a secondary element ?

A Pointer

B Bourdon tube

C Bulb

D None of these

Review Detailed Answer

Correct Answer: Bourdon tube

In a shell and tube heat exchanger, the inlet temperature of heating/cooling fluid is the ____________ variable?

A Load

B Manipulated

C Controlled

D None of these

Review Detailed Answer

Correct Answer: Load

Which of the following temperature measuring instruments need not touch the object whose temperature is being measured ?

A Radiation/infrared pyrometer

B Filled system thermometer

C Mercury in glass thermometer

D Thermo electric pyrometer

Review Detailed Answer

Correct Answer: Radiation/infrared pyrometer

A pyrheliometer is an instrument used for measuring the_________________?

A Bright sunshine period

B Beam radiation

C Diffuse radiation

D None of these

Review Detailed Answer

Correct Answer: Beam radiation

On-off controllers are normally used for________________?

A Low loads

B Temperature changes

C Flow rate changes

D None of these

Review Detailed Answer

Correct Answer: Low loads

A proportional controller with a gain of Kc is used to control a first order process. The offset will increase, if________________?

A Kc is reduced

B Kc is increased

C Integral control action is introduced

D Derivative control action is introduced

Review Detailed Answer

Correct Answer: Kc is increased

The unit step response of the transfer function (2s – 1)/[(3s + 1) (4s + 1)] reaches its final steady state asymptotically after _____________?

A A monotonic increase

B A monotonic decrease

C Initially increasing and then decreasing

D Increasing decreasing and then increasing

Review Detailed Answer

Correct Answer: A monotonic increase

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The ____________ of the fluid contained in the temperature sensing element (i.e., bulb) of filled system thermometers changes with change in temperature ?

Thermistor, which has high temperature co-efficient of resistivity, is used as the sensing element in resistance thermometer. It is a/an ?

Thermistors are used in ____________ devices?

The ____________ of a vapor pressure thermometer is a secondary element ?

In a shell and tube heat exchanger, the inlet temperature of heating/cooling fluid is the ____________ variable?

Which of the following temperature measuring instruments need not touch the object whose temperature is being measured ?

A pyrheliometer is an instrument used for measuring the_________________?

On-off controllers are normally used for________________?

A proportional controller with a gain of Kc is used to control a first order process. The offset will increase, if________________?

The unit step response of the transfer function (2s – 1)/[(3s + 1) (4s + 1)] reaches its final steady state asymptotically after _____________?