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

The body passing a viscous medium affected by:

Question # 2

The study of fluid in motion basically involves law of conservation of:

Question # 3

The smooth or steady stream-line flow is know as

Question # 4

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

Question # 5

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

Question # 6

In a normal healthy person the value of diastolic pressure is

Question # 7

The equation of continuity
A1V1= A2V2is for the flow of

Question # 8

The application of Bernoulli's equation is

Question # 9

The effect of friction between different layers of a flowing fluid is described in terms of

Question # 10

A body is floating in a liquid. The up thrust on the body is

Question # 11

Fluids resist force, This property is called

Question # 12

The value for systolic blood pressure for a normal healthy person is

Question # 13

The fluid is incompressible, if itsdensity is

Question # 14

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

Question # 15

The fluid which is incompressible and non viscous is called

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Internal friction of fluid is called
A. Surface tension
B. Viscosity
C. Resistance
D. Cohesive force
2 Fluid A is more viscous than fluid B. While flowing through a pipe of the same dimensions and material which fluid takes longer to travel at 25°C?
A. fluid B
B. fluid A
C. both take the same time
D. not possible to determine from given information
3 The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called
A. constant rate
B. volume rate
C. flow rate
D. steady rate
4 A body is floating in a liquid. The up thrust on the body is
A. Equal to weight of liquid displaced
B. Zero
C. Less than the weight of liquid displaced
D. Weight of body-weight of liquid displaced
5 Two water pipes of diameters 4 cm and 8 cm are connected with a supply line. The velocity of flow of water in the pipe 4 cm diameter is
A. 1/4 times
B. 4 times
C. Twice
D. 1/2 of 8 cm diameter pipe
6 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
7 According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be
A. low
B. zero
C. high
D. all of them
8 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
9 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
10 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity

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