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

00:00
Question # 1

Viscosity of water is ______ that of air but ___ that of plasma.

Question # 2

Stock's law holds for:

Question # 3

The velocity gained by the fluid in falling through the distance (h1 - h2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the

Question # 4

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

Question # 5

If every particle of the flow that passes a particular point, moves along the same path as followed by particles which passed the point earlier, then this flow is said to be

Question # 6

Ball pen functions on the principle of

Question # 7

What are the SI base units of the coefficient of viscosity

Question # 8

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 # 9

Fluids resist force, This property is called

Question # 10

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

Question # 11

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

Question # 12

With the increase of temperature viscosity

Question # 13

Bernoulli's equation is important in the field of

Question # 14

The terminal velocity of a small size spherical body of radius R moving in a fluid varies as

Question # 15

Blood vessels can be stretch like rubber, therefore they are

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 A device used to measure the speed of liquid flow is known as
A. barometer
B. speedometer
C. sphygmomanometer
D. venture-meter
2 The maximum drag force on a falling sphere is 9.8 N, it weight is
A. 1 N
B. 9.8 N
C. 4.9 N
D. Cannot be calculated
3 Ball pen functions on the principle of
A. Viscosity
B. Boyle's law
C. Gravitational force
D. Surface tnesion
4 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
5 When a water droplet falls through air, the net force on it is
A. Net force = drag force - weight
B. Net force = weight - drag force
C. Net force = drag force + weight
D. Net force = weight + drag force
6 The dimensions of viscosity are:
A. M2L-1T-2
B. M-1L1T-1
C. M-1L-1T
D. ML-1T-1
7 The internal pressure of the blood is
A. less than the external atmospheric pressure
B. greater than the external atmospheric pressure
C. equal to the external atmosphericpressure
D. none of them
8 How much force is required to slide one layer of the liquid over the other layer is measured by
A. friction
B. density
C. viscosity
D. resistivity
9 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
10 The blood pressure of a person
A. decrease with age
B. increase with age
C. has no effect with age
D. none of them

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