Physics Class 11 - Chapter 6Fluid DynamicsTest - 1

Physics Class 11 - Chapter 6
Fluid Dynamics
Test - 1

1. The measure of the force required to slide one layer of a liquid over another is called?

a) Viscosity
b) Terminal velocity
c) Terminal acceleration
d) All of these

2. The drag force in a medium depends upon?

a) Profile of the object
b) Velocity of the same object
c) Both of these
d) None of these

3. The stokes law holds only for?

a) High speed
b) Low speed
c) Medium speed
d) No speed mater

4. The force experienced by an object while moving in a viscous medium is called?

a) Viscosity
b) Terminal velocity
c) Drag force
d) Retarding force

5. SI unit of coefficient of viscosity is?

a) Nm^-1
b) Kgm^-1s
c) Kgm^-1s
d) Nm^-2s

6. In a fluid if every particle that passes through a specific point moves along the same path as followed by earlier, such a flow is called

a) regular flow
b) Streamline flow
c) Laminar flow
d) All of these

7. Characteristics of an ideal fluid is?

a) it is non-viscous
b) It is incompressible
c) It motion is steady
d) All of these

8. At higher velocities of fluid flow the flow is?

a) Steady
b) Constant
c) Variable
d) Turbulent

9. Equation of continuity is given by?

a) Law of conservation of mass
b) Law of conservation of energy
c) Law of conservation of momentum
d) All of these in combined form

10. Mixing of air in carburetor is according to?a) conservation of energy
b) Bernoulli’s equation
c) Equation of continuity
d) Conservation of mass

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