ECAT Pre Computer Science Chapter 6 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

Try The MCQ's Test For ECAT Physics Chapter 6 Fluid Dynamics

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ECAT Physics Chapter 6 Fluid Dynamics

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Question # 1

The density of blood is nearly equal to that of

Question # 2

Matter is made up of very tiny particles called

Question # 3

Ball pen functions on the principle of

Question # 4

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

Question # 5

In a normal healthy person the value of systolic pressure is

Question # 6

According to slok's law, drag force depends on

Question # 7

The blood pressure of a person

Question # 8

When a water droplet falling freely through air, the drag force on water droplet increases with th

Question # 9

High speed meteors rushing through air reduces to ashes because of:

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

Machine parts are jammed due to:

Question # 12

Stock's law holds for:

Question # 13

Liquids and gasses have

Question # 14

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?

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The flow of an ideal fluid is
A. streamline flow
B. incompressible flow
C. non-viscous
D. all of the above
2 An object moving through a fluid experiences a retarding force called a
A. frictional force
B. terminal force
C. opposing force
D. drag force
3 When the upward drag force of the fluid becomes equal to downward force of gravity of the droplet, then its velocity:
A. Starts increasing
B. Starts decreasing
C. Becomes constant
D. Is called escape velocity
4 The maximum drag force on a falling sphere is 9.8 N, it weight is
A. 1 N
B. 9.8 N
C. 4.9 N
D. Cannot be calculated
5 Density of fluid is defined as:
A. Its volume to mass ratio
B. Product of volume and mass
C. Its mass of volume ratio
D. None of these
6 Substances that do not flow easily have
A. large coefficient of viscosity
B. small coefficient of viscosity
C. either of them
D. none of them
7 Bernoulli's equation is based upon law of conversation
A. Mass
B. Momentum
C. Energy
D. None of these
8 The un-steady streamline flow is called
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
9 The smooth or steady streamline flow is known as
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
10 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these

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