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.

Which of the following thermocouples has the least temperature measurement range ?
A Copper-constantan
B Chromel-alumel
C Platinum-platinum/rhodium
D Iron-constantan
Correct Answer: Copper-constantan
Platinum resistance thermometer can be used upto antimony point which is ____________ °C, and is the temperature of equilibrium between solid antimony & liquid antimony at normal atmospheric pressure?
A 961.93
B 630.74
C 1064.43
D 1261.93
Correct Answer: 630.74
Temperature of _____________ cannot be measured by an optical or radiation pyrometer?
A Hot blast (air) from stoves
B Molten slag flowing out of blast furnace
C Combustion space in boilers
D Rotary limestone calcination kiln
Correct Answer: Hot blast (air) from stoves
The Laplace transform of exp(at), where a > 0, is defined only for the Laplace parameter, s > a since______________?
A The function is exponential
B The Laplace transform of integral of exp(at) has finite values only for s > a
C The Laplace transform integral of exp(at) has initial values only for s > a
D The function exp(at) is piece-wise continuous only for s > a
Correct Answer: The Laplace transform of integral of exp(at) has finite values only for s > a
Mercury thermometer can be used to measure the temperature upto ____________ °C?
A 100
B 250
C 350
D 750
Correct Answer: 350
Nitrogen gas constant volume thermometer is suitable for measuring a temperature of _____________ °C?
A 0-100
B < 0
C > 100
D > 50
Correct Answer: > 100
In a feed-back control system G and H denote open loop and close loop transfer functions respectively. The output-input relationship is_____________?
A G/(1 + H)
B H/(1 + G)
C G/H
D H/G
Correct Answer: H/(1 + G)
On-off control which is a special case of proportional control, has a band width of about _____________ percent?
A 100
B 75
C 25
D 0
Correct Answer: 0
A non-linear system will have _____________ steady state values?
A One
B More than one
C Two
D Three
Correct Answer: More than one
Mcleod gauge is used to measure the __________________?
A Point velocity
B Flow rate
C Vacuum
D Pressure
Correct Answer: Vacuum