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.

_____________ is an example of distributed parameter system ?

A Tubular reactor
B CSTR
C On-off controller
D None of these
Correct Answer: Tubular reactor

Which of the following can measure temperatures in the range of – 20 to 300°C ?

A Mercury in glass thermometer
B Vapor pressure thermometer
C Resistance thermometer
D None of these
Correct Answer: None of these

The level of a liquid under pressure can be determined using___________________?

A Bubbler system
B Differential pressure manometer
C Diaphragm box system
D Air-trap system
Correct Answer: Differential pressure manometer

In Bode plot, A.R. vs. w is plotted on a/an _____________ graph paper?

A Log-lag
B Triangular
C Ordinary
D Semi-log
Correct Answer: Log-lag

Temperature control of an exothermic chemical reaction taking place in a CSTR is done with the help of cooling water flowing in a jacket around the reactor. The types of valve and controller action to be recommended are________________?

A Air to open valve with the controller direct acting
B Air to close valve with the controller indirect acting
C Air to open valve with the controller indirect acting
D Air to close valve with the controller direct acting
Correct Answer: Air to open valve with the controller indirect acting

Thermal well made of _____________ gives the fastest speed of response, while measuring temperature by thermocouples?

A Steel
B Vycor (a glass)
C Nichrome
D Inconel
Correct Answer: Vycor (a glass)

With increase in temperature, the electrical conductivity of the platinum used in the resistance thermometer ?

A Increases
B Decreases
C Remain constant
D Increases exponentially
Correct Answer: Decreases

For measuring the temperature of a red hot furnace, which is the most suitable instrument ?

A Platinum resistance thermometer
B Thermocouple
C Optical pyrometer
D Bimetallic thermometer
Correct Answer: Optical pyrometer

Bourdon tube is never made of________________?

A Phosphor bronze
B Monel metal
C Stainless steel
D Cast iron
Correct Answer: Cast iron

Minute depression of freezing point of a liquid solvent on addition of a solid solute can be best measured by a________________?

A Beckman thermometer
B Dilatometer
C Mercury thermometer
D Bimetallic thermometer
Correct Answer: Beckman thermometer