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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.

All Topics  9594

Range of hydrogen gas constant volume thermometer is _____________ °C?
A -10 to 20
B 0 to 100
C 100 – 500
D 400 – 1000
Correct Answer: 0 to 100
Pick out the one which is a first order instrument ?
A Mercury in glass thermometer (without any covering or air gap)
B Bare metallic thermometer
C Bare vapor pressure thermometer
D All A., B. and C.
Correct Answer: All A., B. and C.
Pick out the first order system from among the following ?
A Damped vibrator
B Mercury in glass thermometer kept in boiling water
C Interacting system of two tanks in series
D Non-interacting system of two tanks in series
Correct Answer: Mercury in glass thermometer kept in boiling water
Select the correct statement from the following?
A The frequency response of a pure capacity process is unbounded
B The phase lag of a pure time delay system decreases with increasing frequency
C The amplitude ratio of a pure capacity process is inversely proportional to frequency
D The amplitude ratio of a pure time delay system increases with frequency
Correct Answer: The amplitude ratio of a pure capacity process is inversely proportional to frequency
Pick out the wrong statement ?
A Proportional controller is normally used for level control in industrial applications
B CSTR can be considered as a distributed parameter system
C Distributed parameter approach gives partial differential equation
D Non-linear behaviour is exemplified by an on-off controller
Correct Answer: CSTR can be considered as a distributed parameter system
Pick out the wrong statement?
A There is no transfer lag for a single first order system
B Stirred tank with a water jacket exemplifies an interacting system
C Transfer lag is a characteristic of all higher order systems (other than first order systems)
D Transfer lag decreases as the number of stages decreases
Correct Answer: Transfer lag decreases as the number of stages decreases
The time taken for a radioactive element to reduce to 50% of its original weight is _____________ years, if its half life period is 12 years?
A 24
B 18
C 6
D 36
Correct Answer: 18
The frequency at which maximum amplitude ratio is attained is called the ______________ frequency?
A Corner
B Resonant
C Cross-over
D Natural
Correct Answer: Resonant
Thermocouple is suitable for measuring_________________?
A Liquid temperatures only
B Very high temperatures only
C Very low temperatures only
D Both high and low temperatures
Correct Answer: Both high and low temperatures
For the time domain function f(t) = t, the Laplace transform of ∫0 t f(t) dt is given by___________________?
A 1/2 S3
B 2/S3
C 1/S3
D 2/S2
Correct Answer: 1/S3
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