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

Two water pipes of diameters 4 cm and 8 cm are connected with a supply line. The velocity of flow of water in the pipe 4 cm diameter is

Question # 2

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

Question # 3

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

Question # 4

Density of fluid is defined as:

Question # 5

Stock's law holds for:

Question # 6

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

Question # 7

The law of conservation of energy gives us

Question # 8

In a normal healthy person the value of systolic pressure is

Question # 9

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

Question # 10

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

Question # 11

Viscosity is defined as

Question # 12

One torr is equal to

Question # 13

Glycerin has viscosity _____ the viscosity of water:

Question # 14

When the droplet moves with terminal velocity in a fluid, the net force acting on the droplet is:

Question # 15

The instrument which detects the instant at which external pressure becomes equal to the systolic pressure is

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The unit of viscosity is SI system is:
A. Kg-1m sec-1
B. Kgm-1 sec-1
C. Kg-1m-1 sec
D. None of these
2 Blood is an
A. Compressible fluid
B. incompressible fluid
C. hard
D. none of them
3 The value for systolic blood pressure for a normal healthy person is
A. 140 torr
B. 80 torr
C. 90 torr
D. 120 torr
4 Drag force increases if speed of the object moving through the fluid:
A. Increases
B. Decreases
C. Remains constant
D. None of these
5 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
6 The equation of continuity is
A. A1A2 = V1V2
B. A1/V1 =A2/V2
C. V1/A1=V2/A2
D. A1V1 =A2V2
7 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
8 A person standing near the track of a fast moving train has tendency to fall towards it because of
A. Vibration due to motion of train
B. Gravitation force of attraction between person and trains
C. The high speed of train
D. Some other effect
9 The density of blood is nearly equal to that of
A. mercury
B. sodium
C. water
D. honey
10 The study of fluid in motion basically involves law of conservation of:
A. Mass
B. Energy
C. Change
D. Both A and C

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