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

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

Question # 2

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

Question # 3

Fluids resist force, This property is called

Question # 4

Liquids and gasses have

Question # 5

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

Question # 6

In deriving the Bernoulli's equation, we assume that the fluid is

Question # 7

When the droplet moves with terminal velocity in a fluid, the net force acting on the droplet is:

Question # 8

The SI unit of viscosity is

Question # 9

The resistance offered by a fluid to a solid moving inside it is called:

Question # 10

Bernoulli's equation is applicable for

Question # 11

The un-steady streamline flow is called

Question # 12

With the increase of temperature viscosity

Question # 13

A body is moving through a viscous medium eventually comes to rest because of:

Question # 14

At low speeds, the drag force is

Question # 15

According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 The smooth or steady streamline flow is known as
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
3 At high altitude the blood oozes out of the nose and ear because
A. The blood pressure increase at high altitudes
B. The percentage of oxygen in the air increase
C. The atmospheric pressure decrease there
D. The density of blood decrease at high altitudes
4 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
5 Blood pressure is measured in torr. Which of the following units could belong to torr?
A. N m-1
B. N m-2
C. N m
D. N-1m-2
6 The direction of the streamlines is the same as the direction of the
A. force
B. torque
C. velocity
D. weight
7 The value of viscosity of a fluid is dependent on (at constant temperature)
A. the fluid itself
B. the fluid and its container
C. anything in contact with the fluid
D. all of the above
8 The value for systolic blood pressure for a normal healthy person is
A. 140 torr
B. 80 torr
C. 90 torr
D. 120 torr
9 Rate of flow can be expressed in
A. litre/sec
B. litre-sec
C. sec/litre
D. sec/litre-m
10 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

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