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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

Silicon in steel__________________?
A Makes it usable in almost all magnetic circuits where alternating current is used
B Increases its electrical resistivity and decreases the hysteresis loss
C Is present upto 5% & 4% respectively when used in transformers & motor armatures
D All ‘A’, ‘B’ & ‘C’
Correct Answer: All ‘A’, ‘B’ & ‘C’
Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of ______________ will facilitate the most accurate measurement of the temperature ?
A Copper
B Steel
C Aluminium
D Brass
Correct Answer: Copper
Which of the following is an unconventional source of energy ?
A Thermal power
B Hydroelectric power
C Nuclear-fusion power
D Solar power
Correct Answer: Solar power
Wave length of X-rays is about 1 angstrom; however it cannot pass through a sheet of ________________?
A Paper
B Cloth
C Lead
D Aluminium
Correct Answer: Lead
For infinite parallel planes having emissivities ε1 & ε2, the interchange factor for radiation from surface 1 to surface 2 is given by__________________?
A (ε1 + ε2)/ε1.ε2
B ε1.ε2/(ε1 + ε2 – ε1.ε2)
C ε1.ε2
D ε1 + ε2
Correct Answer: ε1.ε2/(ε1 + ε2 – ε1.ε2)
The function of neutral flux used in the pyrometallurgy of metal extraction is to increase the _____________ of the slag ?
A Fluidity
B Basicity
C Acidity
D Viscosity
Correct Answer: Fluidity
The same volume of all gases is representative of their_____________________?
A Specific gravities
B Densities
C Gas characteristic constants
D Molecular weights
Correct Answer: Molecular weights
‘Amortization’ in respect of financial obligation of a company means the_____________________?
A Liquidation of financial obligations on instalment basis
B Commitment of financial obligation on priority
C Liquidation of all the obsolete equipments of the company
D Modernisation of the plant equipments
Correct Answer: Liquidation of financial obligations on instalment basis
The surface tension of a liquid, at critical temperature is____________________?
A Indeterminate
B Zero
C Infinity
D Same as that at any other temperature
Correct Answer: Zero
The lightest non-inflammable gas is_________________?
A H2
B He
C Ar
D O2
Correct Answer: He
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