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

Liquids and gasses have

Question # 2

Density of fluid is defined as:

Question # 3

The density of blood is nearly equal to that of

Question # 4

The fluid is incompressible, if itsdensity is

Question # 5

Blood is an

Question # 6

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

Question # 7

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

Question # 8

Terminal velocity is the maximum velocity attained by a spherical droplet when the drag force______the weight of droplet:

Question # 9

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:

Question # 10

The fluid which is incompressible and non viscous is called

Question # 11

According to the Bernoulli's theorem the pressure velocity are

Question # 12

The direction of the streamlines is the same as the direction of the

Question # 13

Under normal circumstances, the volume of blood is sufficient to keep the vessels

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 In Bernoulli's theorem the relation between velocity and pressure is
A. Inverse
B. Direct
C. None of the above
D. Both a and b
2 The law of conservation of energy gives us
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
3 The mass of fluid passing through any cross-section per unit time is called
A. electric flux
B. magnetic flux
C. mass flux
D. none of them
4 Fog droplets are suspended in air when their weight is balanced by:
A. Force of gravity
B. Upward trust due to air
C. Surface tension
D. None of these
5 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:
A. Not affected due to its size
B. Twice that of small size ball
C. Four times that of small size ball
D. 1/4th of that of small size ball
6 An object moving through a fluid experiences a retarding force called a
A. frictional force
B. terminal force
C. opposing force
D. drag force
7 A fluid at a certain point has 50 J of potential energy per unit volume, 75 J of kinetic energy per unit volume,and 35 J of pressure energy per unit volume. the total energy of the fluid is
A. 125 J
B. 90 J
C. 160 J
D. 85 J
8 Where the streamlines are very close to each other, the pressure will be
A. low
B. zero
C. high
D. all of them
9 The analysis of fluid motion becomes simplified by using
A. law of conservation
B. law of conservation of energy
C. both of them
D. none of them
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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