ECAT Pre Engineering Physics Chapter 6 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

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Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics

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Question # 1

Blood vessels can be stretch like rubber, therefore they are

Question # 2

The velocity of falling raindrop attains limited value because of

Question # 3

Two copper balls of 1 cm and 2 cm in diameter are simultaneously dropped in the same viscous medium. The terminal velocity of bigger ball is:

Question # 4

In deriving the Bernoulli's equation, we assume that the fluid is

Question # 5

The body passing a viscous medium affected by:

Question # 6

Bernoulli's equation is applicable for

Question # 7

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 # 8

At low speeds, the drag force is

Question # 9

At high altitude the blood oozes out of the nose and ear because

Question # 10

0.10 cm can be written as:

Question # 11

Which of the following options states the names of fluids in the order of increasing viscosity?

Question # 12

According to Stoke's law, drag force depends on

Question # 13

The SI unit of viscosity is

Question # 14

A flowing liquid possess

Question # 15

Above a certain velocity of a fluid is called

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 When a water droplet falling freely through air, the drag force on water droplet increases with th
A. decrease in speed
B. increase in speed
C. pressure
D. none of them
2 According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be
A. low
B. zero
C. high
D. all of them
3 High speed meteors rushing through air reduces to ashes because of:
A. Force of gravity
B. High resistance of air
C. Drag force
D. None of these
4 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
A. 200 m
B. 11000 m
C. 2000 m
D. 8000 m
5 The value of viscosity of a fluid is dependent on (at constant temperature)
A. the fluid itself
B. the fluid and its container
C. anything in contact with the fluid
D. all of the above
6 According to Stoke's law, drag force depends on
A. Initial velocity
B. Final velocity
C. Terminal velocity
D. Instantaneous velocity
7 Where the streamlines are very close to each other, the pressure will be
A. low
B. zero
C. high
D. all of them
8 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
9 At high speed, fluid friction _____ and fuel consumption ___,:
A. Increases, decreases
B. Increases, increases
C. Decreases, increases
D. None of these
10 According to the Bernoulli's theorem the pressure velocity are
A. equal to each other
B. proportional to each other
C. inversely proportional to each other
D. none of them

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