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

During the free fall motion of an object, when its weight becomes equal to the drag force, then it will move with

Question # 2

Bernoulli's equation is based upon law of conversation

Question # 3

The dimensions of viscosity are:

Question # 4

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

Question # 5

In a container having water filled up to a height h, a hole is made in the bottom. The velocity of water flowing out of the hole is

Question # 6

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

Question # 7

The effect of friction between different layers of a flowing fluid is described in terms of

Question # 8

In Bernoulli's theorem the relation between velocity and pressure is

Question # 9

The value for systolic blood pressure for a normal healthy person is

Question # 10

The study of fluid in motion basically involves law of conservation of:

Question # 11

According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area

Question # 12

Internal friction of fluid is called

Question # 13

The pressure will be low where the speed of the fluid is

Question # 14

0.10 cm can be written as:

Question # 15

The body passing a viscous medium affected by:

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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 point along the pipe is called
A. constant rate
B. volume rate
C. flow rate
D. steady rate
2 The value for systolic blood pressure for a normal healthy person is
A. 140 torr
B. 80 torr
C. 90 torr
D. 120 torr
3 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these
4 Substances that do not flow easily have
A. large coefficient of viscosity
B. small coefficient of viscosity
C. either of them
D. none of them
5 The drag force acting on a spherical droplet of radius 10-5m moving with a velocity of 1 cm/sec in a fluid of velocity 5.31 x 10-7m/sec. The units comes out to be:
A. 10-16N
B. 10-14N
C. 10-12N
D. 10-10N
6 The fluid is incompressible, if itsdensity is
A. zero
B. constant
C. very high
D. very small
7 A tube is tapered from 20 cm diameter to 2 cm diameter, the velocity at the first cross-section is 50 cm/s, then the velocity at the second cross-section is
A. 50 m/s
B. 20 m/s
C. 40 cm/s
D. 5 cm/s
8 The force exerted by the fluid in a hydraulic pump on the piston is 10 cm2, the fluid pressure on the piston is, in N/cm2
A. 20
B. 200
C. 2000
D. 20,000
9 In a container having water filled up to a height h, a hole is made in the bottom. The velocity of water flowing out of the hole is
A. Independent of h
B. Proportional to h1/2
C. Proportional to h
D. Proportional to h2
10 Bernoulli's equation is based upon law of conservation
A. Mass
B. Momentum
C. Energy
D. None of these

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