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

An object moving through a fluid experiences a retarding force called a

Question # 2

Fog droplets are suspended in air when their weight is balanced by:

Question # 3

When a fluid is in motion, its flow can be considered as

Question # 4

Bernoulli's equation is based upon law of conversation of

Question # 5

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

Question # 6

Blood has a density

Question # 7

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

Question # 8

When the different streamlines cannot cross each other, then this condition is known as

Question # 9

The instrument which detects the instant at which external pressure becomes equal to the systolic pressure is

Question # 10

According to slok's law, drag force depends on

Question # 11

At low speeds, the drag force is

Question # 12

If v is the velocity of flow of liquid through a tube of area of cross-section A, then according to equation of continuity

Question # 13

Ball pen functions on the principle of

Question # 14

A high concentration of red blood cells increases its viscosity from

Question # 15

According to Stoke's law, drag force depends on

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The dimensions of viscosity are:
A. M2L-1T-2
B. M-1L1T-1
C. M-1L-1T
D. ML-1T-1
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 The unit of viscosity is SI system is:
A. Kg-1m sec-1
B. Kgm-1 sec-1
C. Kg-1m-1 sec
D. None of these
4 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 h1/2
C. Proportional to h
D. Proportional to h2
5 Blood is an
A. Compressible fluid
B. incompressible fluid
C. hard
D. none of them
6 When weight of an object falling freely becomes equal to the drag force, then the body will move with
A. increasing speed
B. decreasing speed
C. constant speed
D. none of them
7 The law of conservation of energy gives us
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
8 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
A. 20
B. 200
C. 2000
D. 20,000
9 The fluid is incompressible, if itsdensity is
A. zero
B. constant
C. very high
D. very small
10 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

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