Fluid Mechanics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Fluid Mechanics, a fundamental topic in the field of Basic Chemical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Fluid Mechanics MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Fluid Mechanics mcq questions that explore various aspects of Fluid Mechanics problems. Each MCQ is crafted to challenge your understanding of Fluid Mechanics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Chemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Fluid Mechanics MCQs are your pathway to success in mastering this essential Basic Chemical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Fluid Mechanics. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Fluid Mechanics knowledge to the test? Let's get started with our carefully curated MCQs!

Fluid Mechanics MCQs | Page 13 of 77

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Q121.
The co-efficient of drag and lift for an incompressible fluid depends on the

a.

Reynolds number

b.

Froude number

c.

Mach number

d.

all (a), (b) and (c)

Discuss
Answer: (a).Reynolds number
Q122.
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.

Discuss
Answer: (b).force per unit mass equals acceleration.
Q123.
The Navier-Stokes equation deals with the law of conservation of

a.

mass

b.

energy

c.

both (a) & (b)

d.

momentum

Discuss
Answer: (d).momentum
Q124.
The fluid property which matters for fall-ing rain drops to acquire spherical shape is its

a.

pressure

b.

height of descend

c.

viscosity

d.

surface tension

Discuss
Answer: (d).surface tension
Q125.
The simple pitot tube does not measure the

a.

static pressure.

b.

dynamic pressure.

c.

velocity at the stagnation point.

d.

all (a), (b) and (c).

Discuss
Answer: (d).all (a), (b) and (c).
Q126.
Boundary layer separation occurs when the

a.

pressure reaches a minimum.

b.

cross-section of the channel is reduced.

c.

valve is closed in a pipeline.

d.

velocity of sound is reached.

Discuss
Answer: (b).cross-section of the channel is reduced.
Q127.
The head loss in turbulent flow in a pipe varies

a.

directly as the velocity.

b.

inversely as the square of the velocity.

c.

approximately as the square of the velocity.

d.

inversely as the square of the diameter.

Discuss
Answer: (c).approximately as the square of the velocity.
Q128.
Hydraulic intensifier is used for increasing the

a.

rate of velocity of liquid supply.

b.

rate of flow through delivery pipeline of a pump.

c.

intensity of pressure of the liquid.

d.

momentum rate through delivery pipe.

Discuss
Answer: (c).intensity of pressure of the liquid.
Q129.
Hydrometer measures the specific gravity of liquids based on the principles of buoyancy. Pycnometer is used to measure the specific gravity of

a.

powder & grannular solids

b.

liquids

c.

low melting point semi-solids

d.

all 'a', 'b' & 'c'

Discuss
Answer: (d).all 'a', 'b' & 'c'
Q130.
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.

Discuss
Answer: (a).conservation of mass.
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