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

The value of viscosity of a fluid is dependent on (at constant temperature)

Question # 2

At the starting point of the free fall motion of an object, its acceleration will be

Question # 3

Matter is made up of very tiny particles called

Question # 4

The velocity of falling raindrops attains limited value because of

Question # 5

The _____ viscous the medium is _____, is the value of terminal velocity of the droplet:

Question # 6

The unit of viscosity is SI system is:

Question # 7

In a normal healthy person the value of diastolic pressure is

Question # 8

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

Question # 9

What are the SI base units of the coefficient of viscosity

Question # 10

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

Question # 11

0.10 cm can be written as:

Question # 12

When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called

Question # 13

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

Question # 14

The body will move with terminal velocity when it acquires

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 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
4 Which of the following options states the names of fluids in the order of increasing viscosity?
A. mercury, motor oil, methanol
B. methanol, mercury, motor oil
C. motor oil, mercury, methanol
D. methanol, motor oil, mercury
5 The _____ viscous the medium is _____, is the value of terminal velocity of the droplet:
A. More, lesser
B. Lesser, more
C. Both A and B
D. Lesser, lesser
6 A container has a small hole in the bottom. Air can go through this hole,but water cannot. This can be best explained by the statement that
A. water contains hydrogen atoms, air does not
B. water molecules are smaller than molecules in the air
C. water molecules are smaller than molecules in the air
D. surface tension of the water prevents it from
7 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
8 Viscosity of water is ______ that of air but ___ that of plasma.
A. More, more
B. Less, more
C. Less, less
D. More, less
9 Bernoulli's equation is based upon law of conservation
A. Mass
B. Momentum
C. Energy
D. None of these
10 Stoke;s law is not applicable when the speed of the object moving through a fluid is:
A. Zero
B. Small
C. Large
D. None of these

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