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 smooth or steady stream-line flow is know as

Question # 2

Bernoulli's equation is based upon law of conservation

Question # 3

Fog droplets are suspended in air when their weight is balanced by:

Question # 4

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

Question # 5

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 # 6

Which of the following is a characteristic of an ideal fluid?

Question # 7

The smooth or steady streamline flow is known as

Question # 8

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 # 9

Which of the following options states the names of fluids in the order of increasing viscosity?

Question # 10

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

Question # 11

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 # 12

The body passing a viscous medium affected by:

Question # 13

The un-steady streamline flow is called

Question # 14

The flow of an ideal fluid is

Question # 15

What is another name for laminar flow?

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Fluid friction is _____ the friction between two solid surfaces:
A. Greater than
B. Smaller than
C. Equal to
D. None of these
2 Substances that flow easily have
A. large coefficient of viscosity
B. small coefficient of viscosity
C. either of them
D. none of them
3 High speed meteors rushing through air reduces to ashes because of:
A. Force of gravity
B. High resistance of air
C. Drag force
D. None of these
4 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
5 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
6 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
A. 200 m
B. 11000 m
C. 2000 m
D. 8000 m
7 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
8 The direction of the streamlines is the same as the direction of the
A. force
B. torque
C. velocity
D. weight
9 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
10 The equation of continuity
A1V1= A2V2is for the flow of
A. an ideal fluid
B. an incompressible fluid
C. a non visconcous fluid
D. all of the above

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