ECAT Physics Chapter 6 Fluid Dynamics Online Test With Answers

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ECAT Physics Chapter 6 Fluid Dynamics Online Test

Sr. # Questions Answers Choice
1 A fluid at a certain point has 50 J of potential energy per unit volume, 75 J of kinetic energy per unit volume,and 35 J of pressure energy per unit volume. the total energy of the fluid is 125 J 90 J 160 J 85 J
2 The equation of continuity
A1V1= A2V2is for the flow of
an ideal fluid an incompressible fluid a non visconcous fluid all of the above
3 What is another name for laminar flow? streamline unsteady flow turbulent flow both (a) and (b)
4 Blood pressure is measured in torr. Which of the following units could belong to torr? N m<sup>-1</sup> N m<sup>-2</sup> N m N<sup>-1</sup>m<sup>-2</sup>
5 Fluids have three types of energies. The Bernoulli's equation combines those energies.which of the following is one of the three enrgies possessed by a fluid? potential energy pressure energy strain energy (a) and (b) only
6 The flow of an ideal fluid is streamline flow incompressible flow non-viscous all of the above
7 Which of the following is a characteristic of an ideal fluid? it is non-viscous it is incompressible it's motion is steady all of the above
8 The value for systolic blood pressure for a normal healthy person is 140 torr 80 torr 90 torr 120 torr
9 Which of the following options correctly states the equation of continuity for an ideal fluid? A<sub>1</sub>A<sub>2</sub>= V<sub>1</sub>V<sub>2</sub> A<sub>1</sub>/A<sub>2</sub>= V<sub>2</sub>/V<sub>1</sub> A<sub>1</sub>/A<sub>2</sub>= V<sub>1</sub>/V<sub>2</sub> none of the above
10 Which of the following has the greatest coefficient of viscosity? water gasoline honey tar
11 What are the SI base units of the coefficient of viscosity Kg m s<sup>-2</sup> kgm<sup>2</sup> s<sup>-2</sup> Kg m s<sup>-1</sup> kg m<sup>-1</sup>s<sup>-1</sup>
12 Which of the following options states the names of fluids in the order of increasing viscosity? mercury, motor oil, methanol methanol, mercury, motor oil motor oil, mercury, methanol methanol, motor oil, mercury
13 Viscosity is defined as the friction between fluid and its container's walls the internal friction between two layers of fluid the resistance to flow a fluid experiences the extent to which outside factors effect the fluid's flow
14 Bernoulli's equation is applicable for turbulent flow streamline flow both (a) and (b) all kinds of flows
15 The value of viscosity of a fluid is dependent on (at constant temperature) the fluid itself the fluid and its container anything in contact with the fluid all of the above
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