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

Glycerin has viscosity _____ the viscosity of water:

Question # 2

The fluid is incompressible, if itsdensity is

Question # 3

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

Question # 4

When the different streamlines cannot cross each other, then this condition is known as

Question # 5

A body is floating in a liquid. The up thrust on the body is

Question # 6

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

Question # 7

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

Question # 8

Where the streamlines are very close to each other, the pressure will be

Question # 9

A tube tapers from 20 cm diameter to 2 cm, the velocity at first cross-section is 50 ms-1then velocity at second cross-section is

Question # 10

The analysis of fluid motion becomes simplified by using

Question # 11

Stoke;s law is not applicable when the speed of the object moving through a fluid is:

Question # 12

Liquids and gasses have

Question # 13

The rain drop falling from the sky reach the ground with

Question # 14

A massive object falls through a fluid:

Question # 15

At low speeds, the drag force is

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 A flowing liquid possess
A. K.E
B. P.E
C. Pressure Energy
D. All
2 Rate of flow can be expressed in
A. litre/sec
B. litre-sec
C. sec/litre
D. sec/litre-m
3 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
4 N s m-2is unit of:
A. Drag force
B. Pressure
C. Surface tension
D. Coefficient of viscosity
5 According to Stoke's law, drag force depends on
A. Initial velocity
B. Final velocity
C. Terminal velocity
D. Instantaneous velocity
6 The resistance offered by a fluid to a solid moving inside it is called:
A. Drag force
B. Surface force
C. Viscosity
D. None of these
7 Bernoulli's equation is based upon law of conversation
A. Mass
B. Momentum
C. Energy
D. None of these
8 The blood pressure of a person
A. decrease with age
B. increase with age
C. has no effect with age
D. none of them
9 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
10 At high altitude the blood oozes out of the nose and ear because
A. The blood pressure increase at high altitudes
B. The percentage of oxygen in the air increase
C. The atmospheric pressure decrease there
D. The density of blood decrease at high altitudes

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