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 value for systolic blood pressure for a normal healthy person is

Question # 2

The product of cross-sectional area of the pipe and the fluid speed at any pint along the pipe is

Question # 3

The rain drop falling from the sky reach the ground with

Question # 4

A flowing liquid possess

Question # 5

The smooth or steady streamline flow is known as

Question # 6

Bernoulli's equation is based upon law of conversation

Question # 7

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

Question # 8

A high concentration of red blood cells increases its viscosity from

Question # 9

If v is the velocity of flow of liquid through a tube of area of cross-section A, then according to equation of continuity

Question # 10

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

Question # 11

The resistance offered by a fluid to a solid moving inside it is called:

Question # 12

The density of blood is nearly equal to that of

Question # 13

The direction of the streamlines is the same as the direction of the

Question # 14

Unit of viscosity is:

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Viscosity is defined as
A. the friction between fluid and its container's walls
B. the internal friction between two layers of fluid
C. the resistance to flow a fluid experiences
D. the extent to which outside factors effect the fluid's flow
2 Pressure exerted by a gas on the walls of its container in due to
A. adhesion between the gas molecules and the container
B. cohesion between the gas molecules and the container
C. collision between the gas molecules and the container
D. surface tension of the gas
3 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
4 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
5 At high speed, fluid friction _____ and fuel consumption ___,:
A. Increases, decreases
B. Increases, increases
C. Decreases, increases
D. None of these
6 Where the streamlines are very close to each other, the pressure will be
A. low
B. zero
C. high
D. all of them
7 Matter is made up of very tiny particles called
A. Atoms
B. Molecules
C. Ions
D. None of these
8 0.10 cm can be written as:
A. 1.0 x 10-2m
B. 1.0 x 10-3cm
C. 1.0 x 10-4cm
D. 1. x 10-4m
9 Bernoulli's equation is applicable for
A. turbulent flow
B. streamline flow
C. both (a) and (b)
D. all kinds of flows
10 A container has a small hole in the bottom. Air can go through this hole,but water cannot. This can be best explained by the statement that
A. water contains hydrogen atoms, air does not
B. water molecules are smaller than molecules in the air
C. water molecules are smaller than molecules in the air
D. surface tension of the water prevents it from

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