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

The mass of fluid passing through any cross-section per unit time is called

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

Blood pressure is measured in torr. Which of the following units could belong to torr?

Question # 4

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

Question # 5

N s m-2is unit of:

Question # 6

According to the Bernoulli's theorem the pressure velocity are

Question # 7

The fluid which is incompressible and non viscous is called

Question # 8

The pressure will change in the pipe, as the fluid moves through that pipe of varying

Question # 9

Fluid friction is _____ the friction between two solid surfaces:

Question # 10

Bernoulli's equation is based upon law of conversation

Question # 11

Bernoulli's equation is based upon law of conservation

Question # 12

The application of Bernoulli's equation is

Question # 13

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

Question # 14

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?

Question # 15

According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
A. 0.1 m
B. 0.2 m
C. 0.98 m
D. Full length of the capillary tube
2 Where the streamlines are very close to each other, the pressure will be
A. low
B. zero
C. high
D. all of them
3 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
4 The density of blood is nearly equal to that of
A. mercury
B. sodium
C. water
D. honey
5 During the free fall motion of an object, when its weight becomes equal to the drag force, then it will move with
A. maximum speed
B. zero speed
C. maximum speed
D. none of them
6 The body passing a viscous medium affected by:
A. One force only
B. Two forces only
C. Four forces
D. None of these
7 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
8 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
9 The analysis of fluid motion becomes simplified by using
A. law of conservation
B. law of conservation of energy
C. both of them
D. none of them
10 Under normal circumstances, the volume of blood is sufficient to keep the vessels
A. flatted for all times
B. inflated for all times
C. inflated for small times
D. none of them

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