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

When a water droplet falls through air, the net force on it is

Question # 2

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

Question # 3

Blood is an

Question # 4

The smooth or steady streamline flow is known as

Question # 5

N s m-2is unit of:

Question # 6

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 # 7

A body is moving through a viscous medium eventually comes to rest because of:

Question # 8

Where the streamlines are very far apart from each other, the pressure will be

Question # 9

Machine parts are jammed due to:

Question # 10

According to the equation of continuity, when water falls from the tap, it's speed increases and its cross-sectional area

Question # 11

One torr is equal to

Question # 12

The value for systolic blood pressure for a normal healthy person is

Question # 13

When the upward drag force of the fluid becomes equal to downward force of gravity of the droplet, then its velocity:

Question # 14

Blood has a density

Question # 15

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

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The velocity of falling raindrop attains limited value because of
A. Up trust of air
B. Viscous force exerted by air
C. Surface tension effect
D. Air currents atmosphere
2 Blood pressure is measured by the instrument
A. stethoscope
B. sphygmomanometer
C. barometer
D. none of them
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 Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid
A. speed
B. height
C. none of them
D. both of them
5 A massive object falls through a fluid:
A. Faster
B. Slower
C. Slowest
D. None
6 Fluids have three types of energies. The Bernoulli's equation combines those energies.which of the following is one of the three enrgies possessed by a fluid?
A. potential energy
B. pressure energy
C. strain energy
D. (a) and (b) only
7 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?
A. fluid B
B. fluid A
C. both take the same time
D. not possible to determine from given information
8 Surface tension of water is due to
A. Inter molecular attractions
B. Inter molecular spaces
C. Inter molecular repulsion
D. None of above
9 The dimensions of viscosity are:
A. M2L-1T-2
B. M-1L1T-1
C. M-1L-1T
D. ML-1T-1
10 What is another name for laminar flow?
A. streamline
B. unsteady flow
C. turbulent flow
D. both (a) and (b)

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