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 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 # 2

The dimensions of viscosity are:

Question # 3

Pressure exerted by a gas on the walls of its container in due to

Question # 4

The fluid is incompressible, if itsdensity is

Question # 5

At low speeds, the drag force is

Question # 6

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

Question # 7

In a normal healthy person the value of systolic pressure is

Question # 8

When the upward drag force of the fluid becomes equal to downward force of gravity of the droplet, then its velocity:

Question # 9

The pressure will change in the pipe, as the fluid moves through that pipe of varying

Question # 10

The application of Bernoulli's equation is

Question # 11

Where the streamlines are very far apart from each other, the pressure will be

Question # 12

A tube tapers from 20 cm diameter to 2 cm, the velocity at first cross-section is 50 ms-1then velocity at second cross-section is

Question # 13

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

Question # 14

The smooth or steady streamline flow is known as

Question # 15

Liquids and gasses have

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
2 A body is moving through a viscous medium eventually comes to rest because of:
A. Force of gravity
B. Force of friction
C. Its weight
D. Both A and C
3 Substances that flow easily have
A. large coefficient of viscosity
B. small coefficient of viscosity
C. either of them
D. none of them
4 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
5 The instrument which detects the instant at which external pressure becomes equal to the systolic pressure is
A. stethoscope
B. thermometer
C. manometer
D. barometer
6 The law of conservation of energy gives us
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
7 Drag force increases if speed of the object moving through the fluid:
A. Increases
B. Decreases
C. Remains constant
D. None of these
8 Where the streamlines are very close to each other, the pressure will be
A. low
B. zero
C. high
D. all of them
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 0.10 cm can be written as:
A. 1.0 x 10-2m
B. 1.0 x 10-3cm
C. 1.0 x 10-4cm
D. 1. x 10-4m

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