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Chapter 6 - Fluid Dynamics - 3
1.
If the density of fluid is constant, then the liquid is ................
a) Increase
b) Compressible
c) Incompressible
2.
The air pressure decreases with the ............... in altitude.
a) Compressible
b) Increase
c) Decrease
3.
The irregular flow of the fluid is called .................. flow.
a) Fast
b) Turbulent
c) Swirrling
4.
Sphygmomanometer is an instrument used to measure the ................. of human body.
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5.
Dolphins have ............... bodies to assist their movement in water.
a) Slippery
b) Stream Lined
c) Smooth
d) Straight
6.
The air pressure below the wings of the plane ................ when the speed of air is increased in that region.
a) Decreases
b) Does not change
c) Increases
7.
Pressure of air
a) Nm
-1
b) Nm
2
c) Nm
-2
8.
Aerodynamic shapes of car
a) Increase in drag force
b) Reduction in drag force
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