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

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

Question # 2

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

Question # 3

If water rises 4 cm in a long, thin tube because of capillary action, then, under corresponding conditions of use, the rise (in the tube) of a liquid whose density is 2 g/cm2will be

Question # 4

A device used to measure the speed of liquid flow is known as

Question # 5

Glycerin has viscosity _____ the viscosity of water:

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

Bernoulli's equation is based upon law of conversation of

Question # 8

The velocity of falling raindrop attains limited value because of

Question # 9

According to the Bernoulli's theorem the pressure velocity are

Question # 10

Liquids and gasses have

Question # 11

Substances that do not flow easily have

Question # 12

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

Question # 13

If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe

Question # 14

The density of blood is nearly equal to that of

Question # 15

Matter is made up of very tiny particles called

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 According to the Bernoulli's theorem the pressure velocity are
A. equal to each other
B. proportional to each other
C. inversely proportional to each other
D. none of them
2 Above a certain velocity of a fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them
3 Blood vessels can be stretch like rubber, therefore they are
A. rigid
B. hard
C. very thick
D. not rigid
4 When the velocity of a liquid flowing steadily in a tube increases, its pressure?
A. Decreases
B. Increases
C. Remains same
D. Zero
5 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these
6 The irregular and unsteady flow of the fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them
7 The resistance offered by a fluid to a solid moving inside it is called:
A. Drag force
B. Surface force
C. Viscosity
D. None of these
8 Ball pen functions on the principle of
A. Viscosity
B. Boyle's law
C. Gravitational force
D. Surface tnesion
9 The pressure will be low where the speed of the fluid is
A. Zero
B. High
C. Low
D. Constant
10 Terminal velocity is the maximum velocity attained by a spherical droplet when the drag force______the weight of droplet:
A. Is smaller than
B. Is greater than
C. Becomes equal to
D. None of these

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