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

When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called

Question # 2

The effect of friction between different layers of a flowing fluid is described in terms of

Question # 3

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

Question # 4

Surface tension of water is due to

Question # 5

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

Question # 6

In the case of an incompressible fluid in stead flow the net rate of flow of mass entering one end of the tube of flow is equal to the net rate of flow of mass leaving the other end. This equation is called

Question # 7

Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid

Question # 8

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 # 9

According to the Bernoulli's theorem the pressure velocity are

Question # 10

Terminal velocity is the maximum velocity attained by a spherical droplet when the drag force______the weight of droplet:

Question # 11

According to Stoke's law, drag force depends on

Question # 12

Two copper balls of 1 cm and 2 cm in diameter are simultaneously dropped in the same viscous medium. The terminal velocity of bigger ball is:

Question # 13

The pressure will change in the pipe, as the fluid moves through that pipe of varying

Question # 14

The _____ viscous the medium is _____, is the value of terminal velocity of the droplet:

Question # 15

Fire fighters have jet attached to the head of their water pipes in order to

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Machine parts are jammed due to:
A. Increasing in viscosity of lubricant
B. Decreasing in viscosity of lubricant
C. Decreasing in surface tension of lubricant
D. None of these
2 In a normal healthy person the value of diastolic pressure is
A. 75 - 80 torr
B. 100 torr
C. 120 torr
D. none of them
3 If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe
A. increases
B. decreases
C. becomes zero
D. is conserved
4 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
5 The direction of the streamlines is the same as the direction of the
A. force
B. torque
C. velocity
D. weight
6 The fluid which is incompressible and non viscous is called
A. Ideal fluid
B. Non-ideal fluid
C. Prefect fluid
D. All
7 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
8 The mass of fluid passing through any cross-section per unit time is called
A. electric flux
B. magnetic flux
C. mass flux
D. none of them
9 When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called
A. incompressible
B. compressible
C. viscous
D. non viscous
10 Rate of flow can be expressed in
A. litre/sec
B. litre-sec
C. sec/litre
D. sec/litre-m

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