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

Question # 2

The flow of an ideal fluid is

Question # 3

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

Question # 4

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 # 5

Machine parts are jammed due to:

Question # 6

A massive object falls through a fluid:

Question # 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

Question # 8

Blood pressure is measured by the instrument

Question # 9

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

Question # 10

The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called

Question # 11

The application of Bernoulli's equation is

Question # 12

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

Question # 13

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

Question # 14

Blood is an

Question # 15

According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 Unit of viscosity is:
A. Kg m-1sec-1
B. N s m-2
C. J s m-3
D. All of these
3 A flowing liquid possess
A. K.E
B. P.E
C. Pressure Energy
D. All
4 When the speed of a body in a fluid increases then the drag force
A. decreases
B. becomes zero
C. increases
D. non of them
5 During the steady flow, different streamlines
A. cannot across each other
B. can across each other
C. either of them
D. neither of them
6 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
7 The pressure will be low where the speed of the fluid is
A. Zero
B. High
C. Low
D. Constant
8 Fire fighters have jet attached to the head of their water pipes in order to
A. Increase the mass of water flowing per second
B. Increase the velocity of water flowing out
C. Increase the volume of water flowing per second
D. Avoid wastage of water
9 Surface tension of water is due to
A. Inter molecular attractions
B. Inter molecular spaces
C. Inter molecular repulsion
D. None of above
10 The fluid is incompressible, if itsdensity is
A. zero
B. constant
C. very high
D. very small

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