Viscosity NEET Questions

Physics - Properties of Solids and Liquids

Viscosity MCQ Questions


1.
Viscosity is defined as:
A.
The surface tension of a fluid
B.
The density of a fluid
C.
The internal friction between fluid layers
D.
The compressibility of a fluid
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ANSWER :
C. The internal friction between fluid layers
2.
The SI unit of viscosity is:
A.
Joule (J)
B.
Newton (N)
C.
Pascal-second (Pa·s)
D.
Watt (W)
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ANSWER :
C. Pascal-second (Pa·s)
3.
The force required to maintain a constant velocity between fluid layers is:
A.
Independent of viscosity
B.
Inversely proportional to viscosity
C.
Directly proportional to viscosity
D.
Exponential with viscosity
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ANSWER :
C. Directly proportional to viscosity
4.
Which of the following fluids has the highest viscosity?
A.
Air
B.
Water
C.
Alcohol
D.
Honey
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ANSWER :
D. Honey
5.
Viscosity is a measure of a fluid’s:
A.
Electrical conductivity
B.
Ability to compress
C.
Resistance to flow
D.
Thermal conductivity
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ANSWER :
C. Resistance to flow
6.
What happens to the viscosity of liquids with an increase in temperature?
A.
Decreases
B.
Increases
C.
Remains the same
D.
Becomes infinite
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ANSWER :
A. Decreases