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 smooth or steady streamline flow is known as

Question # 2

The un-steady streamline flow is called

Question # 3

Machine parts are jammed due to:

Question # 4

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 # 5

How much force is required to slide one layer of the liquid over the other layer is measured by

Question # 6

With the increase of temperature viscosity

Question # 7

If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe

Question # 8

The flow of an ideal fluid is

Question # 9

Bernoulli's equation is applicable for

Question # 10

In a surface tension experiment with a capillary tube water rises up to 0.1 m. if the same experiment is repeated on an artificial satellite, which is resolving around the earth, water will rise in the capillary tube up to a height of

Question # 11

When weight of an object falling freely becomes equal to the drag force, then the body will move with

Question # 12

Liquids and gasses have

Question # 13

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 # 14

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

Question # 15

The body will move with terminal velocity when it acquires

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Which of the following has the greatest coefficient of viscosity?
A. water
B. gasoline
C. honey
D. tar
2 Glycerin has viscosity _____ the viscosity of water:
A. More than
B. Equal to
C. Less than
D. None of these
3 Two copper balls of 1 cm and 2 cm in diameter are simultaneously dropped in the same viscous medium. The terminal velocity of bigger ball is:
A. Not affected due to its size
B. Twice that of small size ball
C. Four times that of small size ball
D. 1/4th of that of small size ball
4 In deriving the Bernoulli's equation, we assume that the fluid is
A. incompressible
B. no viscous
C. flows in a steady manner
D. all of them
5 In a _____ flow, each particle of the fluid is called a streamline and different streamlines ______cross each other.
A. Streamline, cannot
B. Turbulent, cannot
C. Streamline, can
D. None of these
6 Bernoulli's equation is based upon law of conversation
A. Mass
B. Momentum
C. Energy
D. None of these
7 The study of fluid in motion basically involves law of conservation of:
A. Mass
B. Energy
C. Change
D. Both A and C
8 The pressure will be low where the speed of the fluid is
A. Zero
B. High
C. Low
D. Constant
9 The rain drop falling from the sky reach the ground with
A. Constant terminal velocity
B. Constant gravitational acceleration
C. Variable acceleration
D. acceleration greater than g
10 According to the Bernoulli's theorem the pressure velocity are
A. equal to each other
B. proportional to each other
C. inversely proportional to each other
D. none of them

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