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

During the steady flow, different streamlines

Question # 2

The force exerted by the fluid in a hydraulic pump on the piston is 10 cm2, the fluid pressure on the piston is, in N/cm2

Question # 3

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

Question # 4

Drag force increases if speed of the object moving through the fluid:

Question # 5

The density of blood is nearly equal to that of

Question # 6

The un-steady streamline flow is called

Question # 7

The smooth or steady stream-line flow is know as

Question # 8

Viscosity is defined as

Question # 9

The internal pressure of the blood is

Question # 10

Glycerin has viscosity _____ the viscosity of water:

Question # 11

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

Question # 12

Fluids resist force, This property is called

Question # 13

With the increase of temperature viscosity

Question # 14

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 # 15

In the case of an incompressible fluid in stead flow the net rate of flow of mass entering one end of the tube of flow is equal to the net rate of flow of mass leaving the other end. This equation is called

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The resistance offered by a fluid to a solid moving inside it is called:
A. Drag force
B. Surface force
C. Viscosity
D. None of these
2 Which of the following options correctly states the equation of continuity for an ideal fluid?
A. A1A2= V1V2
B. A1/A2= V2/V1
C. A1/A2= V1/V2
D. none of the above
3 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
A. 1.3 m/s
B. 1.6 m/s
C. 1.9 m/s
D. 2.2 m/s
4 Bernoulli's equation is based upon law of conversation
A. Mass
B. Momentum
C. Energy
D. None of these
5 Bernoulli's equation is based upon law of conservation
A. Mass
B. Momentum
C. Energy
D. None of these
6 Where the streamlines are very far apart from each other, the pressure will be
A. low
B. zero
C. high
D. all of them
7 With increase of temperature, the viscosity of liquid and gases
A. Increases for both
B. Decreases for both
C. Increases for liquids and decreases for gases
D. Decreases for liquids and increases for gases
8 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
9 The blood pressure of a person
A. decrease with age
B. increase with age
C. has no effect with age
D. none of them
10 The pressure will be low where the speed of the fluid is
A. Zero
B. High
C. Low
D. Constant

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