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 analysis of fluid motion becomes simplified by using

Question # 2

When a fluid is in motion, its flow can be considered as

Question # 3

Fluid friction is _____ the friction between two solid surfaces:

Question # 4

Bernoulli's equation is based upon law of conservation

Question # 5

One torr is equal to

Question # 6

The body will move with terminal velocity when it acquires

Question # 7

Rate of flow can be expressed in

Question # 8

According to Stoke's law, drag force depends on

Question # 9

Two copper balls of 1 cm and 2 cm in diameter are simultaneously dropped in the same viscous medium. The terminal velocity of bigger ball is:

Question # 10

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

Question # 11

If v is the velocity of flow of liquid through a tube of area of cross-section A, then according to equation of continuity

Question # 12

A massive object falls through a fluid:

Question # 13

In a container having water filled up to a height h, a hole is made in the bottom. The velocity of water flowing out of the hole is

Question # 14

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

Question # 15

The blood pressure of a person

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Two copper balls of 1 cm and 2 cm in diameter are simultaneously dropped in the same viscous medium. The terminal velocity of bigger ball is:
A. Not affected due to its size
B. Twice that of small size ball
C. Four times that of small size ball
D. 1/4th of that of small size ball
2 Liquids and gasses have
A. zero viscosity
B. non-zero viscosity
C. very large viscosity
D. very small viscosity
3 Glycerin has viscosity _____ the viscosity of water:
A. More than
B. Equal to
C. Less than
D. None of these
4 The instrument which detects the instant at which external pressure becomes equal to the systolic pressure is
A. stethoscope
B. thermometer
C. manometer
D. barometer
5 A high concentration of red blood cells increases its viscosity from
A. 3 - 5 times that of mercury
B. 5 - 8 times that of mercury
C. 3 - 5 times that of water
D. 5 - 8 times that of water
6 With the increase of temperature viscosity
A. Increase
B. Decrease
C. Remains same
D. Doubles
7 Blood has a density
A. Equal to water
B. Greater then water
C. Lesser then water
D. None of these
8 Blood vessels can be stretch like rubber, therefore they are
A. rigid
B. hard
C. very thick
D. not rigid
9 In a normal healthy person the value of systolic pressure is
A. 75 torr
B. 80 torr
C. 120 torr
D. all of them
10 Drag force increases if speed of the object moving through the fluid:
A. Increases
B. Decreases
C. Remains constant
D. None of these

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