ECAT Pre Computer Science Chapter 6 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

Try The MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

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ECAT Physics Chapter 6 Fluid Dynamics

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Question # 1

When weight of an object falling freely becomes equal to the drag force, then the body will move with

Question # 2

The unit of viscosity is SI system is:

Question # 3

The irregular and unsteady flow of the fluid is called

Question # 4

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

Question # 5

Fire fighters have a jet attached to the head of their water pipes in order to head of their water pipes in order to

Question # 6

The value of viscosity of a fluid is dependent on (at constant temperature)

Question # 7

Blood has a density

Question # 8

In a normal healthy person the value of diastolic pressure is

Question # 9

The pressure will change in the pipe, as the fluid moves through that pipe of varying

Question # 10

The electrical forces between the molecules of a liquid are

Question # 11

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

Question # 12

A body is floating in a liquid. The up thrust on the body is

Question # 13

The equation of continuity
A1V1= A2V2is for the flow of

Question # 14

The internal pressure of the blood is

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 How much force is required to slide one layer of the liquid over the other layer is measured by
A. friction
B. density
C. viscosity
D. resistivity
2 The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called
A. constant rate
B. volume rate
C. flow rate
D. steady rate
3 Blood pressure is measured by the instrument
A. stethoscope
B. sphygmomanometer
C. barometer
D. none of them
4 According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area
A. decreases
B. increases
C. becomes zero
D. none of them
5 What is another name for laminar flow?
A. streamline
B. unsteady flow
C. turbulent flow
D. both (a) and (b)
6 At high altitude the blood oozes out of the nose and ear because
A. The blood pressure increase at high altitudes
B. The percentage of oxygen in the air increase
C. The atmospheric pressure decrease there
D. The density of blood decrease at high altitudes
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 smooth or steady stream-line flow is know as
A. Laminar flow
B. Turbulent flow
C. Both a and b
D. None of the above
9 The study of fluid in motion basically involves law of conservation of:
A. Mass
B. Energy
C. Change
D. Both A and C
10 The pressure will change in the pipe, as the fluid moves through that pipe of varying
A. cross-section
B. height
C. none of them
D. both of them

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