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

A tube tapers from 20 cm diameter to 2 cm, the velocity at first cross-section is 50 ms-1then velocity at second cross-section is

Question # 2

When the speed of a body in a fluid increases then the drag force

Question # 3

In Bernoulli's theorem the relation between velocity and pressure is

Question # 4

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

Question # 5

Blood is an

Question # 6

The blood pressure of a person

Question # 7

The flow of an ideal fluid is

Question # 8

Ball pen functions on the principle of

Question # 9

Fluids resist force, This property is called

Question # 10

The pressure will be low where the speed of the fluid is

Question # 11

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 # 12

The electrical forces between the molecules of a liquid are

Question # 13

The dimensions of viscosity are:

Question # 14

According to Stoke's law, drag force depends on

Question # 15

The body will move with terminal velocity when it acquires

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Deep water almost runs still when surface water flow in rivers. What does it explains
A. Magnus effect
B. Equation of continuity
C. Surface energy
D. Bernoulli's equation
2 A person standing near the track of a fast moving train has tendency to fall towards it because of
A. Vibration due to motion of train
B. Gravitation force of attraction between person and trains
C. The high speed of train
D. Some other effect
3 The value for systolic blood pressure for a normal healthy person is
A. 140 torr
B. 80 torr
C. 90 torr
D. 120 torr
4 Density of fluid is defined as:
A. Its volume to mass ratio
B. Product of volume and mass
C. Its mass of volume ratio
D. None of these
5 When the droplet moves with terminal velocity in a fluid, the net force acting on the droplet is:
A. FD-mg
B. Zero
C. mg-FD
D. None of these
6 Matter is made up of very tiny particles called
A. Atoms
B. Molecules
C. Ions
D. None of these
7 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
8 Liquids and gasses have
A. zero viscosity
B. non-zero viscosity
C. very large viscosity
D. very small viscosity
9 The flow of an ideal fluid is
A. streamline flow
B. incompressible flow
C. non-viscous
D. all of the above
10 Bernoulli's equation is applicable for
A. turbulent flow
B. streamline flow
C. both (a) and (b)
D. all kinds of flows

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