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GATE Past Year Questions: Fluid Properties - Notes | Study Fluid Mechanics for Mechanical Engineering - Mechanical Engineering

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Question for GATE Past Year Questions: Fluid Properties

Try yourself:The SI unit of kinematic viscosity v is

[2001]

A.
m²/s
B.
kg/ms
C.
m/s²
D.
m³/s²

Explanation

Kinematic Viscosity:
GATE Past Year Questions: Fluid Properties - Notes | Study Fluid Mechanics for Mechanical Engineering - Mechanical Engineering

= m²/s

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Question for GATE Past Year Questions: Fluid Properties

Try yourself:Kinematic viscosity of air at 20°C is given to be 1.6 × 10^–5 m²/s. Its kinematic viscosity at 70°C will be varying approximately

[1999]

A.
2.2 × 10^–5 m²/s
B.
1.6 × 10^–5 m²/s
C.
1.2 × 10^–5 m²/s
D.
3.2 × 10^–5 m²/s

Explanation

Viscosity of gas increases with increasing temperature.

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Question for GATE Past Year Questions: Fluid Properties

Try yourself:Assuming constant temperature condition and air to be an ideal gas, the variation in atmospheric pressure with height calculated from fluid statics is

[2016 Set-2]

A.
linear
B.
exponential
C.
quadratic
D.
cubic

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Question for GATE Past Year Questions: Fluid Properties

Try yourself:For a Newtonian fluid

[2006]

A.
shear stress is proportional to shear strain
B.
rate of shear stress is proportional to shear strain
C.
shear stress is proportional to rate of shear strain
D.
rate of shear stress is proportional to rate of shear strain

Explanation

For a Newtonian fluid, shear stress is proportional to rate of shear strain.

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Question for GATE Past Year Questions: Fluid Properties

Try yourself: If P is the gauge pressure within a spherical droplet, then gauge pressure within a bubble of the same fluid and of same size will be

[1999]

A.
P/4
B.
P/2
C.
P
D.
2P

Explanation

P = Gauge pressure within a spherical droplet
GATE Past Year Questions: Fluid Properties - Notes | Study Fluid Mechanics for Mechanical Engineering - Mechanical Engineering

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Question for GATE Past Year Questions: Fluid Properties

Try yourself:The dimension of surface tension is

[1996]

A.
ML^–1
B.
L²T^–1
C.
ML^–1T^–1
D.
MT^–2

Explanation

Surface tension (σ)
GATE Past Year Questions: Fluid Properties - Notes | Study Fluid Mechanics for Mechanical Engineering - Mechanical Engineering

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Question for GATE Past Year Questions: Fluid Properties

Try yourself:A fluid is one which can be defined as a substance that

[1996]

A.
has that same shear stress at all points
B.
can deform indefinitely under the action of the smallest shear force
C.
has the small shear stress in all directions
D.
is practically incompressible

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Question for GATE Past Year Questions: Fluid Properties

Try yourself:A fluid is said to be Newtonian fluid when the shear stress is

[1995]

A.
directly proportional to the velocity gradient
B.
inversely proportional to the velocity gradient
C.
independent of the velocity gradient
D.
none of these

Explanation

Newtonian fluid obeys Newton's law of viscosity.

View Solution

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	Fluid Mechanics for Mechanical Engineering 50 videos\|90 docs\|76 tests

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50 videos|90 docs|76 tests

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Up next

	Fluid Properties, Fluid Mechanics
	Recap: Introduction & Fundamental Concepts of Fluid Properties
	Test: Introduction & Properties of Fluid Level- 1

Top Courses for Mechanical Engineering

General Aptitude for GATE

GATE Mechanical (ME) 2023 Mock Test Series

Fluid Mechanics for Mechanical Engineering

RRB JE for Mechanical Engineering

Mechanical Engineering SSC JE (Technical)

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