M C Q s D r i v e

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.

A bimetallic thermometer as compared to industrial mercury in glass thermometer has almost the same_________________?

A Temperature measuring range (- 40°C to 450°C)
B Accuracy (± 1% of span)
C Speed of response
D All a, b & c
Correct Answer: All a, b & c

Operating range of a temperature measuring instrument is 800 to 1600°C. It could be a/an _____________ pyrometer?

A Radiation
B Optical
C Photoelectric
D None of these
Correct Answer: Photoelectric

Positioning controllers are used for _______________?

A Low loads
B Temperature changes
C High loads
D Flow rate changes
Correct Answer: High loads

Reset rate is the another term used for ____________ time?

A Dead
B Integral
C Derivative
D None of these
Correct Answer: Integral

In a shell and tube heat exchanger, the flow rate of heating/cooling fluid is the ______________ variable?

A Load
B Controlled
C Manipulated
D None of these
Correct Answer: Manipulated

The deflection in diaphragm (which is used as pressure sensor in pneumatic and electronic instruments) is dependent on the metal thickness, its diameter D. and shape & number of corrugations. Its deflection is proportional to_______________?

A d
B d2
C d3
D d4
Correct Answer: d

Nichol’s chart deals with __________________?

A A.R. vs. phase lag of first order
B A.R. vs. phase lag of second order
C Closed loop values vs. open loop values
D Frequency response values of controllers
Correct Answer: Closed loop values vs. open loop values

Configuration of Bourdon spring tube is never made of _____________ shape?

A Circular
B Semi-circular
C Helical
D Spiral
Correct Answer: Circular

Which of the following is not a variable area flow meter ?

A Piston type meter
B Rotameter
C Magnetic flow meter
D Orifice and tapered plug meter
Correct Answer: Magnetic flow meter

The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by ____________________?

A Reducing value of Kc
B Introducing integral control
C Introducing derivative control
D None of the above
Correct Answer: Introducing integral control