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

During the steady flow, different streamlines

Question # 2

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

Question # 3

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

Question # 4

At the starting point of the free fall motion of an object, its acceleration will be

Question # 5

A container has a small hole in the bottom. Air can go through this hole,but water cannot. This can be best explained by the statement that

Question # 6

Unit of viscosity is:

Question # 7

Which of the following has the greatest coefficient of viscosity?

Question # 8

The terminal velocity of a small size spherical body of radius R moving in a fluid varies as

Question # 9

A massive object falls through a fluid:

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

The rain drop falling from the sky reach the ground with

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The product of cross-sectional area of the pipe and the fluid speed at any pint along the pipe is
A. very high
B. very low
C. constant
D. zero
2 The un-steady streamline flow is called
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
3 The term Brownian movement refers to
A. irregular motions of small particles suspended in a fluid
B. convection currents in a liquid or gas
C. convection currents in a gas but not in a liquid
D. the stretching of a body beyond its elastic limit
4 Blood pressure is measured in torr. Which of the following units could belong to torr?
A. N m-1
B. N m-2
C. N m
D. N-1m-2
5 The smooth or steady stream-line flow is know as
A. Laminar flow
B. Turbulent flow
C. Both a and b
D. None of the above
6 Blood pressure is measured by the instrument
A. stethoscope
B. sphygmomanometer
C. barometer
D. none of them
7 Terminal velocity is the maximum velocity attained by a spherical droplet when the drag force______the weight of droplet:
A. Is smaller than
B. Is greater than
C. Becomes equal to
D. None of these
8 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
9 When the velocity of a liquid flowing steadily in a tube increases, its pressure?
A. Decreases
B. Increases
C. Remains same
D. Zero
10 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

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