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 body will move with terminal velocity when it acquires

Question # 2

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

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

According to the Bernoulli's theorem the pressure velocity are

Question # 5

Substances that do not flow easily have

Question # 6

Viscosity is defined as

Question # 7

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

Question # 8

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 # 9

Bernoulli's equation is based upon law of conversation

Question # 10

The electrical forces between the molecules of a liquid are

Question # 11

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

Question # 12

The smooth or steady stream-line flow is know as

Question # 13

The density of water is 103kg/m3. The water pressure on a submarine is 2.0 x 107N/m2. The depth of the submarine below the surface of the water, in maters, is approximately

Question # 14

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

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 density of blood is nearly equal to that of
A. mercury
B. sodium
C. water
D. honey
2 What is another name for laminar flow?
A. streamline
B. unsteady flow
C. turbulent flow
D. both (a) and (b)
3 During the steady flow, different streamlines
A. cannot across each other
B. can across each other
C. either of them
D. neither of them
4 If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe
A. increases
B. decreases
C. becomes zero
D. is conserved
5 The terminal velocity of water droplet of radius 1 x 10-4m and desity 1000 kg m-3descending through air of viscosity 19 x 10-6kg. m-1 s-1 is
A. 2.5 ms-1
B. 3.2 ms-1
C. 4.3 ms-1
D. 1.1 ms-1
6 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
7 The pressure will change in the pipe, as the fluid moves through that pipe of varying
A. cross-section
B. height
C. none of them
D. both of them
8 The property of fluids due to which they resist their own flow is called:
A. Drag force
B. Surface tension
C. Viscosity
D. None of these
9 Surface tension of water is due to
A. Inter molecular attractions
B. Inter molecular spaces
C. Inter molecular repulsion
D. None of above
10 If one of the pipes has a much smaller diameter than the other and are placed horizontally then form both sides of Bernoulli's equation, we can drop the term
A. P
B. 1/2 fv2
C. pgh
D. none of them

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