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

The product of cross-sectional area of the pipe and the fluid speed at any pint along the pipe is

Question # 2

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

Question # 3

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

Question # 4

Bernoulli's equation is based upon law of conversation

Question # 5

The unit of viscosity is SI system is:

Question # 6

In a container having water filled up to a height h, a hole is made in the bottom. The velocity of water flowing out of the hole is

Question # 7

Rate of flow can be expressed in

Question # 8

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

Question # 9

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

Question # 10

Fire fighters have a jet attached to the head of their water pipes in order to head of their water pipes in order to

Question # 11

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 # 12

Surface tension of water is reduced by adding

Question # 13

In Bernoulli's theorem the relation between velocity and pressure is

Question # 14

When a water droplet falls through air, the net force on it is

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The pressure will be low where the speed of the fluid is
A. Zero
B. High
C. Low
D. Constant
2 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?
A. potential energy
B. pressure energy
C. strain energy
D. (a) and (b) only
3 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
4 Viscosity is defined as
A. the friction between fluid and its container's walls
B. the internal friction between two layers of fluid
C. the resistance to flow a fluid experiences
D. the extent to which outside factors effect the fluid's flow
5 At low speeds, the drag force is
A. proportional to speed
B. inversely proportional to speed
C. not simply proportional to speed
D. none of them
6 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
7 The body will move with terminal velocity when it acquires
A. minimum speed
B. zero speed
C. maximum speed
D. none of them
8 Liquids and gasses have
A. zero viscosity
B. non-zero viscosity
C. very large viscosity
D. very small viscosity
9 Bernoulli's equation is important in the field of
A. Electrical circuit
B. Magnetism
C. Photoelectric effect
D. Flow of fluids
10 When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called
A. incompressible
B. compressible
C. viscous
D. non viscous

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