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

When a fluid is in motion, its flow can be considered as

Question # 2

Bernoulli's equation is based upon law of conversation

Question # 3

In a surface tension experiment with a capillary tube water rises up to 0.1 m. if the same experiment is repeated on an artificial satellite, which is resolving around the earth, water will rise in the capillary tube up to a height of

Question # 4

Bernoulli's equation is important in the field of

Question # 5

High speed meteors rushing through air reduces to ashes because of:

Question # 6

Which of the following is a characteristic of an ideal fluid?

Question # 7

Which of the following options correctly states the equation of continuity for an ideal fluid?

Question # 8

The blood pressure of a person

Question # 9

The velocity of falling raindrops attains limited value because of

Question # 10

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

Question # 11

With increase of temperature, the viscosity of liquid and gases

Question # 12

Ball pen functions on the principle of

Question # 13

Fluids resist force, This property is called

Question # 14

Drag force increases if speed of the object moving through the fluid:

Question # 15

Blood vessels can be stretch like rubber, therefore they are

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The product of cross-sectional area of the pipe and the fluid speed at any pint along the pipe is
A. very high
B. very low
C. constant
D. zero
2 Blood pressure is measured in torr. Which of the following units could belong to torr?
A. N m-1
B. N m-2
C. N m
D. N-1m-2
3 Liquids and gasses have
A. zero viscosity
B. non-zero viscosity
C. very large viscosity
D. very small viscosity
4 A fluid at a certain point has 50 J of potential energy per unit volume, 75 J of kinetic energy per unit volume,and 35 J of pressure energy per unit volume. the total energy of the fluid is
A. 125 J
B. 90 J
C. 160 J
D. 85 J
5 With increase of temperature, the viscosity of liquid and gases
A. Increases for both
B. Decreases for both
C. Increases for liquids and decreases for gases
D. Decreases for liquids and increases for gases
6 When the speed of a body in a fluid increases then the drag force
A. decreases
B. becomes zero
C. increases
D. non of them
7 The terminal velocity of a small size spherical body of radius R moving in a fluid varies as
A. R
B. R2
C. 1/R
D. (1/R)2
8 Matter is made up of very tiny particles called
A. Atoms
B. Molecules
C. Ions
D. None of these
9 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
10 Fluid A is more viscous than fluid B. While flowing through a pipe of the same dimensions and material which fluid takes longer to travel at 25°C?
A. fluid B
B. fluid A
C. both take the same time
D. not possible to determine from given information

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