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

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

Question # 2

Density of fluid is defined as:

Question # 3

Surface tension of water is reduced by adding

Question # 4

According to slok's law, drag force depends on

Question # 5

A person standing near the track of a fast moving train has tendency to fall towards it because of

Question # 6

The property of fluids due to which they resist their own flow is called:

Question # 7

The smooth or steady stream-line flow is know as

Question # 8

With the increase of temperature viscosity

Question # 9

According to the Bernoulli's theorem the pressure velocity are

Question # 10

Bernoulli's equation is based upon law of conservation

Question # 11

0.10 cm can be written as:

Question # 12

When a water droplet falls through air, the net force on it is

Question # 13

The maximum drag force on a falling sphere is 9.8 N, it weight is

Question # 14

With increase of temperature, the viscosity of liquid and gases

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 When a fluid is in motion, its flow can be considered as
A. turbulent
B. streamline
C. either or them
D. neither of them
2 Liquids and gasses have
A. zero viscosity
B. non-zero viscosity
C. very large viscosity
D. very small viscosity
3 Surface tension of water is reduced by adding
A. Detergents
B. Camphor
C. Plastic
D. Both A and B
4 Fire fighters have jet attached to the head of their water pipes in order to
A. Increase the mass of water flowing per second
B. Increase the velocity of water flowing out
C. Increase the volume of water flowing per second
D. Avoid wastage of water
5 According to Stoke's law, drag force depends on
A. Initial velocity
B. Final velocity
C. Terminal velocity
D. Instantaneous velocity
6 In deriving the Bernoulli's equation, we assume that the fluid is
A. incompressible
B. no viscous
C. flows in a steady manner
D. all of them
7 The instrument which detects the instant at which external pressure becomes equal to the systolic pressure is
A. stethoscope
B. thermometer
C. manometer
D. barometer
8 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
9 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
10 N s m-2is unit of:
A. Drag force
B. Pressure
C. Surface tension
D. Coefficient of viscosity

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