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.

Case hardening of a material is__________________?
A Followed by tempering or carburising
B Preceded by its tempering
C Done to get a soft ductile interior with a very hard surface
D Carried out to get extreme hardness in its core
Correct Answer: Carried out to get extreme hardness in its core
Milk is fat dispersed in water. It is an example of__________________?
A Suspension
B Emulsion
C Gel
D Solution
Correct Answer: Emulsion
Cemented carbide tools are not suitable for cutting___________________?
A Aluminium
B Brass
C Cast iron
D Steel
Correct Answer: Aluminium
Annealing of white cast iron produces _____________________ iron?
A Grey
B Nodular
C Malleable
D Spheroidal
Correct Answer: Malleable
Direct conversion of thermal energy to electrical energy is facilitated by the____________________?
A Fuel cells
B Photo voltaic cell
C Magneto hydrodynamic generator
D None of these
Correct Answer: Magneto hydrodynamic generator
A dense structure of grinding wheel is not used for the_____________________?
A Ductile material
B Hard materials
C Brittle materials
D Finishing cuts
Correct Answer: Ductile material
If the demand for an item is trebled and the order cost is reduced to one third, then the economic order quantity_________________?
A Is trebled
B Remains unchanged
C Decreases by a factor of 3
D Decreases by a factor of 1/3
Correct Answer: Remains unchanged
Pressure required to increase the density of water by about 1% is ____________________ atmosphere?
A 10
B 50
C 200
D 1000
Correct Answer: 200
The starting of a car takes time in winter, because the__________________?
A Octane number of fuel is decreased
B Fuel supply for ignition is not sufficient
C Vaporisation of the fuel is decreased
D Pour point of fuel decreases
Correct Answer: Vaporisation of the fuel is decreased
The difference between gross & net calorific values of fuel is due to the___________________?
A Sensible heat carried away by the flue gases
B Heat carried away by the steam from the moisture content of the fuel
C Heat lost by radiation
D Heat carried away by steam from the combustion of hydrogen in the fuel
Correct Answer: Heat carried away by steam from the combustion of hydrogen in the fuel