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

Bernoulli's equation is based upon law of conversation of

Question # 2

Matter is made up of very tiny particles called

Question # 3

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

Question # 4

When the velocity of a liquid flowing steadily in a tube increases, its pressure?

Question # 5

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

Question # 6

A fluid at a certain point has 50 J of potential energy per unit volume, 75 J of kinetic energy per unit volume,and 35 J of pressure energy per unit volume. the total energy of the fluid is

Question # 7

The density of blood is nearly equal to that of

Question # 8

Density of fluid is defined as:

Question # 9

At low speeds, the drag force is

Question # 10

N s m-2is unit of:

Question # 11

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

Question # 12

A high concentration of red blood cells increases its viscosity from

Question # 13

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

Question # 14

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

Question # 15

Rate of flow can be expressed in

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 Which of the following options correctly states the equation of continuity for an ideal fluid?
A. A1A2= V1V2
B. A1/A2= V2/V1
C. A1/A2= V1/V2
D. none of the above
3 Deep water almost runs still when surface water flow in rivers. What does it explains
A. Magnus effect
B. Equation of continuity
C. Surface energy
D. Bernoulli's equation
4 Bernoulli's equation is based upon law of conversation
A. Mass
B. Momentum
C. Energy
D. None of these
5 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
6 Bernoulli's equation is important in the field of
A. Electrical circuit
B. Magnetism
C. Photoelectric effect
D. Flow of fluids
7 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
A. 1.3 m/s
B. 1.6 m/s
C. 1.9 m/s
D. 2.2 m/s
8 The density of blood is nearly equal to that of
A. mercury
B. sodium
C. water
D. honey
9 The value for systolic blood pressure for a normal healthy person is
A. 140 torr
B. 80 torr
C. 90 torr
D. 120 torr
10 Blood is an
A. Compressible fluid
B. incompressible fluid
C. hard
D. none of them

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