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.

Water-tube boiler is the one, in which _____________________?

A Water passes through tubes and flue gases around it
B Tube carrying hot flue gases are immersed in a pool of water
C Tubes are placed in vertical position
D None of these
Correct Answer: Water passes through tubes and flue gases around it

Ferromagnetic materials owe their properties to __________________ inner sub-shells ?

A Completely filled
B Partially filled
C Equally filled
D Vacant
Correct Answer: Partially filled

The yield point phenomenon observed in annealed low carbon steel is due to the presence of the following element ?

A Silicon
B Carbon
C Phosphorous
D Chromium
Correct Answer: Carbon

Out of the following, which will fracture most readity, when hit with a hard hammer ?

A Brass
B Bronze
C German silver
D Cast iron
Correct Answer: Cast iron

__________________ stress cannot be sustained by a fluid in equilibrium ?

A Shear
B Tensile
C Compressive
D None of these
Correct Answer: Shear

Oxyacetylene reducing flame is used while carrying out welding on___________________?

A Alloy steel
B Grey cast iron
C Mild steel
D High carbon steel
Correct Answer: Mild steel

For a spontaneous natural process at constant temperature and pressure, the free energy of the system always____________________?

A Increases
B Decreases
C Remain constant
D Increases to a maximum before decreasing
Correct Answer: Increases

To improve the machinability of steel, it is generally subjected to _____________________?

A Spheroidising
B Tempering
C Normalising
D Annealing
Correct Answer: Spheroidising

Dephosphorization of molten pig iron is favoured by_______________________?

A Oxidising and basic slag
B Reducing and basic slag
C High activity co-efficient of phosphorous in metal
D Oxidising and neutral slag
Correct Answer: Reducing and basic slag

Inertial forces are obtained, when the elastic forces are multiplied by ______________ number?

A Mach
B Froude
C Reynolds
D Euler
Correct Answer: Mach