ECAT Pre Computer Science Chapter 6 online mcq test with answers for Physics chapter 6 (Fluid Dynamics)

ECAT Physics Chapter 6 Fluid Dynamics Online Test

Sr. #	Questions	Answers Choice
1	The irregular and unsteady flow of the fluid is called	turbulent flow steady flow either of them both of them
2	When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called	incompressible compressible viscous non viscous
3	The fluid is incompressible, if itsdensity is	zero constant very high very small
4	If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe	increases decreases becomes zero is conserved
5	The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called	constant rate volume rate flow rate steady rate
6	The product of cross-sectional area of the pipe and the fluid speed at any pint along the pipe is	very high very low constant zero
7	According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area	decreases increases becomes zero none of them
8	When a fluid is in motion, its flow can be considered as	turbulent streamline either or them neither of them
9	If every particle of the flow that passes a particular point, moves along the same path as followed by particles which passed the point earlier, then this flow is said to be	turbulent streamline abrupt none of them
10	During the steady flow, different streamlines	cannot across each other can across each other either of them neither of them
11	When each particle of the fluid moves along a smoth path, this path is known as	straight path smooth path haphazard path steamline
12	When the different streamlines cannot cross each other, then this condition is known as	continuity condition turbulent flow condition steady flow condition none of them
13	The direction of the streamlines is the same as the direction of the	force torque velocity weight
14	A water hose with an internal diameter of 20 mm at the outlet discharges 30 kg of water in 60 s. What is water speed at the outlet if density of water is 1000 kg/m³during its steady flow	1.3 m/s 1.6 m/s 1.9 m/s 2.2 m/s
15	The terminal velocity of water droplet of radius 1 x 10^-4m and desity 1000 kg m^-3descending through air of viscosity 19 x 10^-6kg. m^-1s^-1is	2.5 ms<sup>-1</sup> 3.2 ms<sup>-1</sup> 4.3 ms<sup>-1</sup> 1.1 ms<sup>-1</sup>

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