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 flow of an ideal fluid is

Question # 2

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

Question # 3

The analysis of fluid motion becomes simplified by using

Question # 4

Where the streamlines are very close to each other, the pressure will be

Question # 5

One torr is equal to

Question # 6

High speed meteors rushing through air reduces to ashes because of:

Question # 7

During the steady flow, different streamlines

Question # 8

0.10 cm can be written as:

Question # 9

If every particle of the flow that passes a particular point, moves along the same path as followed by particles which passed the point earlier, then this flow is said to be

Question # 10

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

Question # 11

Viscosity is defined as

Question # 12

Stoke;s law is not applicable when the speed of the object moving through a fluid is:

Question # 13

The fluid is incompressible, if itsdensity is

Question # 14

Where the streamlines are very far apart from each other, the pressure will be

Question # 15

If water rises 4 cm in a long, thin tube because of capillary action, then, under corresponding conditions of use, the rise (in the tube) of a liquid whose density is 2 g/cm2will be

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Bernoulli's equation is based upon law of conservation
A. Mass
B. Momentum
C. Energy
D. None of these
2 In case of streamed lined flow of liquid, the loss of energy is
A. Maximum
B. Minimum
C. Infinite
D. equal to what is in turbulent flow
3 During the free fall motion of an object, when its weight becomes equal to the drag force, then it will move with
A. maximum speed
B. zero speed
C. maximum speed
D. none of them
4 A tube is tapered from 20 cm diameter to 2 cm diameter, the velocity at the first cross-section is 50 cm/s, then the velocity at the second cross-section is
A. 50 m/s
B. 20 m/s
C. 40 cm/s
D. 5 cm/s
5 Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid
A. speed
B. height
C. none of them
D. both of them
6 The internal pressure of the blood is
A. less than the external atmospheric pressure
B. greater than the external atmospheric pressure
C. equal to the external atmosphericpressure
D. none of them
7 The pressure will change in the pipe, as the fluid moves through that pipe of varying
A. cross-section
B. height
C. none of them
D. both of them
8 Viscosity of water is ______ that of air but ___ that of plasma.
A. More, more
B. Less, more
C. Less, less
D. More, less
9 At high altitude the blood oozes out of the nose and ear because
A. The blood pressure increase at high altitudes
B. The percentage of oxygen in the air increase
C. The atmospheric pressure decrease there
D. The density of blood decrease at high altitudes
10 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

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