ECAT Pre Engineering Physics Chapter 6 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

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

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Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

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Question # 1

Blood pressure is measured in torr. Which of the following units could belong to torr?

Question # 2

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

Question # 3

Surface tension of water is reduced by adding

Question # 4

The body passing a viscous medium affected by:

Question # 5

A water hose with an internal diameter of 20 mm at the outlet discharges 30 kg of water in 60 s. What is water speed at the outlet if density of water is 1000 kg/m3during its steady flow

Question # 6

The fluid is incompressible, if itsdensity is

Question # 7

Bernoulli's equation is important in the field of

Question # 8

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

Question # 9

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 # 10

Rate of flow can be expressed in

Question # 11

A flowing liquid possess

Question # 12

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

Question # 13

Which of the following options states the names of fluids in the order of increasing viscosity?

Question # 14

The maximum drag force on a falling sphere is 9.8 N, it weight is

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 An object moving through a fluid experiences a retarding force called a
A. frictional force
B. terminal force
C. opposing force
D. drag force
2 The velocity of falling raindrop attains limited value because of
A. Up trust of air
B. Viscous force exerted by air
C. Surface tension effect
D. Air currents atmosphere
3 According to slok's law, drag force depends on
A. Radius of the spherical body
B. Terminal velocity of body
C. Coefficient of viscosity
D. All of above
4 Pressure exerted by a gas on the walls of its container in due to
A. adhesion between the gas molecules and the container
B. cohesion between the gas molecules and the container
C. collision between the gas molecules and the container
D. surface tension of the gas
5 A flowing liquid possess
A. K.E
B. P.E
C. Pressure Energy
D. All
6 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
7 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
8 According to Stoke's law, drag force depends on
A. Initial velocity
B. Final velocity
C. Terminal velocity
D. Instantaneous velocity
9 Rate of flow can be expressed in
A. litre/sec
B. litre-sec
C. sec/litre
D. sec/litre-m
10 What is another name for laminar flow?
A. streamline
B. unsteady flow
C. turbulent flow
D. both (a) and (b)

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