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

Internal friction of fluid is called

Question # 2

The electrical forces between the molecules of a liquid are

Question # 3

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

Question # 4

Unit of viscosity is:

Question # 5

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

Question # 6

A device used to measure the speed of liquid flow is known as

Question # 7

Deep water almost runs still when surface water flow in rivers. What does it explains

Question # 8

Where the streamlines are very close to each other, the pressure will be

Question # 9

The study of fluid in motion basically involves law of conservation of:

Question # 10

Blood is an

Question # 11

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 # 12

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

Question # 13

Blood pressure is measured in torr. Which of the following units could belong to torr?

Question # 14

According to Stoke's law, drag force depends on

Question # 15

The drag force acting on a spherical droplet of radius 10-5m moving with a velocity of 1 cm/sec in a fluid of velocity 5.31 x 10-7m/sec. The units comes out to be:

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 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
2 The density of blood is nearly equal to that of
A. mercury
B. sodium
C. water
D. honey
3 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
4 The mass of fluid passing through any cross-section per unit time is called
A. electric flux
B. magnetic flux
C. mass flux
D. none of them
5 In a normal healthy person the value of diastolic pressure is
A. 75 - 80 torr
B. 100 torr
C. 120 torr
D. none of them
6 The flow of an ideal fluid is
A. streamline flow
B. incompressible flow
C. non-viscous
D. all of the above
7 Blood pressure is measured by the instrument
A. stethoscope
B. sphygmomanometer
C. barometer
D. none of them
8 Fire fighters have a jet attached to the head of their water pipes in order to head of their water pipes in order to
A. Increase the mass of water flowing per second
B. Avoid wastage of water
C. Increase the velocity of water flowing out
D. Increase the volume of water flowing per second
9 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
10 The smooth or steady stream-line flow is know as
A. Laminar flow
B. Turbulent flow
C. Both a and b
D. None of the above

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