ECAT Pre Computer Science Chapter 6 MCQ Test With Answer

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ECAT Physics Chapter 6 Important MCQ's

Sr.#	Question	Answer
1	The maximum drag force on a falling sphere is 9.8 N, it weight is	A. 1 N B. 9.8 N C. 4.9 N D. Cannot be calculated
2	The term Brownian movement refers to	A. irregular motions of small particles suspended in a fluid B. convection currents in a liquid or gas C. convection currents in a gas but not in a liquid D. the stretching of a body beyond its elastic limit
3	A tube is tapered from 20 cm diameter to 2 cm diameter, the velocity at the first cross-section is 50 cm/s, then the velocity at the second cross-section is	A. 50 m/s B. 20 m/s C. 40 cm/s D. 5 cm/s
4	When the different streamlines cannot cross each other, then this condition is known as	A. continuity condition B. turbulent flow condition C. steady flow condition D. none of them
5	During the free fall motion of an object, when its weight becomes equal to the drag force, then it will move with	A. maximum speed B. zero speed C. maximum speed D. none of them
6	When the upward drag force of the fluid becomes equal to downward force of gravity of the droplet, then its velocity:	A. Starts increasing B. Starts decreasing C. Becomes constant D. Is called escape velocity
7	In a _____ flow, each particle of the fluid is called a streamline and different streamlines ______cross each other.	A. Streamline, cannot B. Turbulent, cannot C. Streamline, can D. None of these
8	During the steady flow, different streamlines	A. cannot across each other B. can across each other C. either of them D. neither of them
9	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	A. Independent of h B. Proportional to h^1/2 C. Proportional to h D. Proportional to h²
10	Where the streamlines are very close to each other, the pressure will be	A. low B. zero C. high D. all of them

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ECAT Pre Computer Science Chapter 6 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

ECAT Physics Chapter 6 Fluid Dynamics

Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid

How much force is required to slide one layer of the liquid over the other layer is measured by

Deep water almost runs still when surface water flow in rivers. What does it explains

The irregular and unsteady flow of the fluid is called

The product of cross-sectional area of the pipe and the fluid speed at any pint along the pipe is

The velocity gained by the fluid in falling through the distance (h1 - h2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the

When each particle of the fluid moves along a smoth path, this path is known as

In deriving the Bernoulli's equation, we assume that the fluid is

The drag force acting on a spherical droplet of radius 10-5m moving with a velocity of 1 cm/sec in a fluid of velocity 5.31 x 10-7m/sec. The units comes out to be:

A high concentration of red blood cells increases its viscosity from

In Bernoulli's theorem the relation between velocity and pressure is

The analysis of fluid motion becomes simplified by using

The effect of friction between different layers of a flowing fluid is described in terms of

The study of fluid in motion basically involves law of conservation of:

A body is moving through a viscous medium eventually comes to rest because of:

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Top Scorers Of ECAT Physics Chapter 6 Fluid Dynamics MCQ`s Test

ECAT Physics Chapter 6 Important MCQ's

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The velocity gained by the fluid in falling through the distance (h_{1 - h}_{2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the}

The drag force acting on a spherical droplet of radius 10^-5m moving with a velocity of 1 cm/sec in a fluid of velocity 5.31 x 10^-7m/sec. The units comes out to be: