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

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

Question # 2

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

Question # 3

In case of streamed lined flow of liquid, the loss of energy is

Question # 4

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

Question # 5

Blood pressure is measured by the instrument

Question # 6

The velocity of falling raindrop attains limited value because of

Question # 7

At high altitude the blood oozes out of the nose and ear because

Question # 8

Deep water almost runs still when surface water flow in rivers. What does it explains

Question # 9

Fluids have three types of energies. The Bernoulli's equation combines those energies.which of the following is one of the three enrgies possessed by a fluid?

Question # 10

The rain drop falling from the sky reach the ground with

Question # 11

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

Question # 12

The resistance offered by a fluid to a solid moving inside it is called:

Question # 13

One torr is equal to

Question # 14

The blood pressure of a person

Question # 15

When the droplet moves with terminal velocity in a fluid, the net force acting on the droplet is:

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Blood pressure is measured by the instrument
A. stethoscope
B. sphygmomanometer
C. barometer
D. none of them
2 Bernoulli's equation is applicable for
A. turbulent flow
B. streamline flow
C. both (a) and (b)
D. all kinds of flows
3 The velocity of falling raindrops attains limited value because of
A. Up thrust of air
B. Air currents of the earth atmosphere
C. Surface tension effect
D. Viscous force exerted by air
4 The equation of continuity is
A. A1A2 = V1V2
B. A1/V1 =A2/V2
C. V1/A1=V2/A2
D. A1V1 =A2V2
5 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
6 The equation of continuity
A1V1= A2V2is for the flow of
A. an ideal fluid
B. an incompressible fluid
C. a non visconcous fluid
D. all of the above
7 Drag force increases if speed of the object moving through the fluid:
A. Increases
B. Decreases
C. Remains constant
D. None of these
8 Above a certain velocity of a fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them
9 At the starting point of the free fall motion of an object, its acceleration will be
A. maximum
B. minimum
C. zero
D. none of them
10 Where the streamlines are very close to each other, the pressure will be
A. low
B. zero
C. high
D. all of them

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