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 body passing a viscous medium affected by:

Question # 2

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

Question # 3

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

Question # 4

The SI unit of viscosity is

Question # 5

What are the SI base units of the coefficient of viscosity

Question # 6

Fluids resist force, This property is called

Question # 7

Blood has a density

Question # 8

According to slok's law, drag force depends on

Question # 9

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

Question # 10

One torr is equal to

Question # 11

In a normal healthy person the value of systolic pressure is

Question # 12

The velocity gained by the fluid in falling through the distance (h1 - h2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the

Question # 13

Stoke;s law is not applicable when the speed of the object moving through a fluid is:

Question # 14

The terminal velocity of a small size spherical body of radius R moving in a fluid varies as

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The fluid which is incompressible and non viscous is called
A. Ideal fluid
B. Non-ideal fluid
C. Prefect fluid
D. All
2 When a water droplet falls through air, the net force on it is
A. Net force = drag force - weight
B. Net force = weight - drag force
C. Net force = drag force + weight
D. Net force = weight + drag force
3 Bernoulli's equation is based upon law of conservation
A. Mass
B. Momentum
C. Energy
D. None of these
4 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
A. 20
B. 200
C. 2000
D. 20,000
5 The rain drop falling from the sky reach the ground with
A. Constant terminal velocity
B. Constant gravitational acceleration
C. Variable acceleration
D. acceleration greater than g
6 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
7 Blood is an
A. Compressible fluid
B. incompressible fluid
C. hard
D. none of them
8 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
9 Where the streamlines are very close to each other, the pressure will be
A. low
B. zero
C. high
D. all of them
10 The terminal velocity of water droplet of radius 1 x 10-4m and desity 1000 kg m-3descending through air of viscosity 19 x 10-6kg. m-1 s-1 is
A. 2.5 ms-1
B. 3.2 ms-1
C. 4.3 ms-1
D. 1.1 ms-1

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