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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

Euler’s equation of motion is a statement expressing____________________?
A Conservation of mass
B Conservation of energy
C Newton’s first law of motion
D Newton’s second law of motion
Correct Answer: Conservation of mass
Steady flow occurs, when the__________________?
A Conditions change steadily with time
B Conditions are the same at the adjacent points at any instant
C Conditions do not change with time at any point
D Rate of the velocity change is constant
Correct Answer: Conditions do not change with time at any point
Euler’s equation of motion states, that at every point, the_________________?
A Fluid momentum is constant
B Force per unit mass equals acceleration
C Rate of mass outflow is equal to the rate of mass inflow
D None of these
Correct Answer: Force per unit mass equals acceleration
For the free settling of a spherical particle through a fluid, the slope of, CD-log NRe, plot is____________________?
A 1
B -1
C 0.5
D -0.5
Correct Answer: 1
For a specific centrifugal air blower operating at constant speed & capacity, the power requirement and pressure vary_______________?
A Directly as square of gas density
B Directly as gas density
C Directly as square root of gas density
D Inversely as gas density
Correct Answer: Directly as gas density
The discharge co-efficient for an orifice meter does not depend upon the ___________________?
A Pipe length
B Ratio of pipe diameter to orifice diameter
C Type of orifice & the Reynolds number
D Pipe diameter
Correct Answer: Pipe length
Velocity at a certain point in case of streamline flow is_________________?
A Constant
B Independent of time
C Both A. & B.
D Neither A. nor B.
Correct Answer: Both A. & B.
The speed of sound in an ideal gas varies as the __________________?
A Temperature
B Pressure
C Density
D None of these
Correct Answer: Temperature
Unsteady uniform flow is represented by flow through a/an_________________?
A Long pipe at constant rate
B Long pipe at decreasing rate
C Expanding tube at increasing rate
D Expanding tube at constant rate
Correct Answer: Long pipe at decreasing rate
For flow of fluids through packed bed, the superficial velocity is_________________?
A Less than the average velocity through channels
B More than the average velocity through channels
C Dependent on the pressure drop across the bed
D Same as the average velocity through channels
Correct Answer: Less than the average velocity through channels
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