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

In a _____ flow, each particle of the fluid is called a streamline and different streamlines ______cross each other.

Question # 2

During the free fall motion of an object, when its weight becomes equal to the drag force, then it will move with

Question # 3

The instrument which detects the instant at which external pressure becomes equal to the systolic pressure is

Question # 4

In a normal healthy person the value of diastolic pressure is

Question # 5

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

Question # 6

Density of fluid is defined as:

Question # 7

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 # 8

The dimensions of viscosity are:

Question # 9

At high altitude the blood oozes out of the nose and ear because

Question # 10

The density of blood is nearly equal to that of

Question # 11

The velocity of falling raindrop attains limited value because of

Question # 12

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

Question # 13

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 # 14

Deep water almost runs still when surface water flow in rivers. What does it explains

Question # 15

What are the SI base units of the coefficient of viscosity

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
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 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
A. turbulent
B. streamline
C. abrupt
D. none of them
4 Matter is made up of very tiny particles called
A. Atoms
B. Molecules
C. Ions
D. None of these
5 At the starting point of the free fall motion of an object, its acceleration will be
A. maximum
B. minimum
C. zero
D. none of them
6 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
A. 1/4 times
B. 4 times
C. Twice
D. 1/2 of 8 cm diameter pipe
7 During the free fall motion of an object, when its weight becomes equal to the drag force, then it will move with
A. maximum speed
B. zero speed
C. maximum speed
D. none of them
8 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
9 With the increase of temperature viscosity
A. Increase
B. Decrease
C. Remains same
D. Doubles
10 In Bernoulli's theorem the relation between velocity and pressure is
A. Inverse
B. Direct
C. None of the above
D. Both a and b

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