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

The smooth or steady stream-line flow is know as

Question # 2

Pressure exerted by a gas on the walls of its container in due to

Question # 3

The body passing a viscous medium affected by:

Question # 4

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

Question # 5

Drag force increases if speed of the object moving through the fluid:

Question # 6

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

Question # 7

If water rises 4 cm in a long, thin tube because of capillary action, then, under corresponding conditions of use, the rise (in the tube) of a liquid whose density is 2 g/cm2will be

Question # 8

In a normal healthy person the value of systolic pressure is

Question # 9

Internal friction of fluid is called

Question # 10

Bernoulli's equation is based upon law of conversation

Question # 11

Which of the following has the greatest coefficient of viscosity?

Question # 12

The fluid is incompressible, if itsdensity is

Question # 13

Matter is made up of very tiny particles called

Question # 14

Viscosity of water is ______ that of air but ___ that of plasma.

Question # 15

In the case of an incompressible fluid in stead flow the net rate of flow of mass entering one end of the tube of flow is equal to the net rate of flow of mass leaving the other end. This equation is called

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 At high speed, fluid friction _____ and fuel consumption ___,:
A. Increases, decreases
B. Increases, increases
C. Decreases, increases
D. None of these
2 According to the Bernoulli's theorem the pressure velocity are
A. equal to each other
B. proportional to each other
C. inversely proportional to each other
D. none of them
3 A body is moving through a viscous medium eventually comes to rest because of:
A. Force of gravity
B. Force of friction
C. Its weight
D. Both A and C
4 The terminal velocity of a small size spherical body of radius R moving in a fluid varies as
A. R
B. R2
C. 1/R
D. (1/R)2
5 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
6 At the starting point of the free fall motion of an object, its acceleration will be
A. maximum
B. minimum
C. zero
D. none of them
7 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
8 Density of fluid is defined as:
A. Its volume to mass ratio
B. Product of volume and mass
C. Its mass of volume ratio
D. None of these
9 N s m-2is unit of:
A. Drag force
B. Pressure
C. Surface tension
D. Coefficient of viscosity
10 If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe
A. increases
B. decreases
C. becomes zero
D. is conserved

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