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 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
2	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
3	At high speed, fluid friction _____ and fuel consumption ___,:	A. Increases, decreases B. Increases, increases C. Decreases, increases D. None of these
4	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	A. 200 m B. 11000 m C. 2000 m D. 8000 m
5	When a fluid is in motion, its flow can be considered as	A. turbulent B. streamline C. either or them D. neither of them
6	A person standing near the track of a fast moving train has tendency to fall towards it because of	A. Vibration due to motion of train B. Gravitation force of attraction between person and trains C. The high speed of train D. Some other effect
7	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?	A. potential energy B. pressure energy C. strain energy D. (a) and (b) only
8	The instrument which detects the instant at which external pressure becomes equal to the systolic pressure is	A. stethoscope B. thermometer C. manometer D. barometer
9	The smooth or steady streamline flow is known as	A. laminar flow B. turbulent flow C. both of them D. none of them
10	Fire fighters have a jet attached to the head of their water pipes in order to head of their water pipes in order to	A. Increase the mass of water flowing per second B. Avoid wastage of water C. Increase the velocity of water flowing out D. Increase the volume of water flowing per second

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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

The law of conservation of energy gives us

According to slok's law, drag force depends on

Ball pen functions on the principle of

Two copper balls of 1 cm and 2 cm in diameter are simultaneously dropped in the same viscous medium. The terminal velocity of bigger ball is:

The density of blood is nearly equal to that of

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

According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be

The pressure will be low where the speed of the fluid is

In a normal healthy person the value of diastolic pressure is

When the velocity of a liquid flowing steadily in a tube increases, its pressure?

A device used to measure the speed of liquid flow is known as

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

The body will move with terminal velocity when it acquires

A person standing near the track of a fast moving train has tendency to fall towards it 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 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: