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 blood pressure of a person

Question # 2

Under normal circumstances, the volume of blood is sufficient to keep the vessels

Question # 3

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

Question # 4

Fire fighters have a jet attached to the head of their water pipes in order to head of their water pipes in order to

Question # 5

In the case of an incompressible fluid in stead flow the net rate of flow of mass entering one end of the tube of flow is equal to the net rate of flow of mass leaving the other end. This equation is called

Question # 6

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

Question # 7

The body passing a viscous medium affected by:

Question # 8

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

Question # 9

What is another name for laminar flow?

Question # 10

Viscosity is defined as

Question # 11

Bernoulli's equation is based upon law of conversation of

Question # 12

A water hose with an internal diameter of 20 mm at the outlet discharges 30 kg of water in 60 s. What is water speed at the outlet if density of water is 1000 kg/m3during its steady flow

Question # 13

The equation of continuity is

Question # 14

Fluid A is more viscous than fluid B. While flowing through a pipe of the same dimensions and material which fluid takes longer to travel at 25°C?

Question # 15

Matter is made up of very tiny particles called

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Sr.# Question Answer
1 The rain drop falling from the sky reach the ground with
A. Constant terminal velocity
B. Constant gravitational acceleration
C. Variable acceleration
D. acceleration greater than g
2 The fluid is incompressible, if itsdensity is
A. zero
B. constant
C. very high
D. very small
3 0.10 cm can be written as:
A. 1.0 x 10-2m
B. 1.0 x 10-3cm
C. 1.0 x 10-4cm
D. 1. x 10-4m
4 According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area
A. decreases
B. increases
C. becomes zero
D. none of them
5 An object moving through a fluid experiences a retarding force called a
A. frictional force
B. terminal force
C. opposing force
D. drag force
6 The law of conservation of energy gives us
A. equation of continuity
B. Bernoulli's theorem
C. both of them
D. none of them
7 A body is moving through a viscous medium eventually comes to rest because of:
A. Force of gravity
B. Force of friction
C. Its weight
D. Both A and C
8 If water rises 4 cm in a long, thin tube because of capillary action, then, under corresponding conditions of use, the rise (in the tube) of a liquid whose density is 2 g/cm2will be
A. 1 cm
B. 2 cm
C. 8 cm
D. None
9 Blood is an
A. Compressible fluid
B. incompressible fluid
C. hard
D. none of them
10 When the speed of a body in a fluid increases then the drag force
A. decreases
B. becomes zero
C. increases
D. non of them

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