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

If one of the pipes has a much smaller diameter than the other and are placed horizontally then form both sides of Bernoulli's equation, we can drop the term

Question # 2

A flowing liquid possess

Question # 3

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

Question # 4

The SI unit of viscosity is

Question # 5

Fluids have three types of energies. The Bernoulli's equation combines those energies.which of the following is one of the three enrgies possessed by a fluid?

Question # 6

According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area

Question # 7

0.10 cm can be written as:

Question # 8

The law of conservation of mass gives us the

Question # 9

Unit of viscosity is:

Question # 10

Fluids resist force, This property is called

Question # 11

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

Question # 12

At the starting point of the free fall motion of an object, its acceleration will be

Question # 13

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

Question # 14

Blood has a density

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Ball pen functions on the principle of
A. Viscosity
B. Boyle's law
C. Gravitational force
D. Surface tnesion
2 A flowing liquid possess
A. K.E
B. P.E
C. Pressure Energy
D. All
3 Unit of viscosity is:
A. Kg m-1sec-1
B. N s m-2
C. J s m-3
D. All of these
4 Where the streamlines are very close to each other, the pressure will be
A. low
B. zero
C. high
D. all of them
5 Fog droplets are suspended in air when their weight is balanced by:
A. Force of gravity
B. Upward trust due to air
C. Surface tension
D. None of these
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 What is another name for laminar flow?
A. streamline
B. unsteady flow
C. turbulent flow
D. both (a) and (b)
8 The property of fluids due to which they resist their own flow is called:
A. Drag force
B. Surface tension
C. Viscosity
D. None of these
9 The velocity of falling raindrop attains limited value because of
A. Up trust of air
B. Viscous force exerted by air
C. Surface tension effect
D. Air currents atmosphere
10 N s m-2is unit of:
A. Drag force
B. Pressure
C. Surface tension
D. Coefficient of viscosity

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