Hydraulics and Fluid Mechanics | Mechanical Engineering

A flow whose streamline is represented by a curve, is called

Byadmin September 14, 2022

Question: A flow whose streamline is represented by a curve, is called
[A].

one-dimensional flow

[B].

two-dimensional flow

[C].

three-dimensional flow

[D].

four-dimensional flow

Answer: Option B

Explanation:

No answer description available for this question.

Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

Moisture should be removed from refrigerants to avoid

Question: Moisture should be removed from refrigerants to avoid
[A].

freezing at the expansion valve
[B].
restriction to refrigerant flow
[C].
corrosion of steel plates
[D].
all of these

Answer: Option D

Explanation:

No answer description available for this question.

Read More Moisture should be removed from refrigerants to avoid
Compressors | Gas Dynamics and Gas Turbines | Mechanical Engineering

An aftercooler is used to

Question: An aftercooler is used to
[A].

remove impurities from air
[B].
reduce volume of air
[C].
cause moisture and oil vapour to drop out
[D].
cool the air

Answer: Option C

Explanation:

No answer description available for this question.

Read More An aftercooler is used to
Engineering Mechanics | Mechanical Engineering

According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through centre of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.)

Question: According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through centre of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.)
[A].

IP = IG + Ah2
[B].
IP = IG – Ah2
[C].
IP = IG / Ah2
[D].
IP = Ah2 / IG

Answer: Option A

Explanation:

No answer description available for this question.

Read More According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through centre of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.)
Engineering Materials | Mechanical Engineering

Hardness of steel is increased by adding sulphur, lead and phosphorus.

Question: Hardness of steel is increased by adding sulphur, lead and phosphorus.
[A].

Yes
[B].
No

Answer: Option B

Explanation:

No answer description available for this question.

Read More Hardness of steel is increased by adding sulphur, lead and phosphorus.
Civil Engineering Mcqs | Hydraulics and Fluid Mechanics

According to Bernoulli’s equation for steady ideal fluid flow_______________?

According to Bernoulli’s equation for steady ideal fluid flow_______________?

A. principle of conservation of mass holds
B. velocity and pressure are inversely proportional
C. total energy is constant throughout
D. the energy is constant along a stream-line but may vary across streamlines
E. none of the above

Read More According to Bernoulli’s equation for steady ideal fluid flow_______________?
Civil Engineering Mcqs | Hydraulics and Fluid Mechanics

In a static fluid__________________?

In a static fluid__________________?

A. resistance to shear stress is small
B. fluid pressure is zero
C. linear deformation is small
D. only normal stresses can exist
E. viscosity is nil

Read More In a static fluid__________________?

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