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	A flowing liquid possess	K.E P.E Pressure Energy All
2	The force exerted by the fluid in a hydraulic pump on the piston is 10 cm², the fluid pressure on the piston is, in N/cm²	20 200 2000 20,000
3	The density of water is 10³kg/m³. The water pressure on a submarine is 2.0 x 10⁷N/m². The depth of the submarine below the surface of the water, in maters, is approximately	200 m 11000 m 2000 m 8000 m
4	The term Brownian movement refers to	irregular motions of small particles suspended in a fluid convection currents in a liquid or gas convection currents in a gas but not in a liquid the stretching of a body beyond its elastic limit
5	Pressure exerted by a gas on the walls of its container in due to	adhesion between the gas molecules and the container cohesion between the gas molecules and the container collision between the gas molecules and the container surface tension of the gas
6	A body is floating in a liquid. The up thrust on the body is	Equal to weight of liquid displaced Zero Less than the weight of liquid displaced Weight of body-weight of liquid displaced
7	In a surface tension experiment with a capillary tube water rises up to 0.1 m. if the same experiment is repeated on an artificial satellite, which is resolving around the earth, water will rise in the capillary tube up to a height of	0.1 m 0.2 m 0.98 m Full length of the capillary tube
8	In a container having water filled up to a height h, a hole is made in the bottom. The velocity of water flowing out of the hole is	Independent of h Proportional to h<sup>1/2</sup> Proportional to h Proportional to h<sup>2</sup>
9	Internal friction of fluid is called	Surface tension Viscosity Resistance Cohesive force
10	At high altitude the blood oozes out of the nose and ear because	The blood pressure increase at high altitudes The percentage of oxygen in the air increase The atmospheric pressure decrease there The density of blood decrease at high altitudes
11	The pressure will be low where the speed of the fluid is	Zero High Low Constant
12	Blood has a density	Equal to water Greater then water Lesser then water None of these
13	According to Stoke's law, drag force depends on	Initial velocity Final velocity Terminal velocity Instantaneous velocity
14	Ball pen functions on the principle of	Viscosity Boyle's law Gravitational force Surface tnesion
15	A person standing near the track of a fast moving train has tendency to fall towards it because of	Vibration due to motion of train Gravitation force of attraction between person and trains The high speed of train Some other effect

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