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

Question # 2

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

Question # 3

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

Question # 4

The maximum drag force on a falling sphere is 9.8 N, it weight is

Question # 5

An object moving through a fluid experiences a retarding force called a

Question # 6

Machine parts are jammed due to:

Question # 7

According to the Bernoulli's theorem the pressure velocity are

Question # 8

The law of conservation of mass gives us the

Question # 9

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 # 10

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

Question # 11

The dimensions of viscosity are:

Question # 12

The terminal velocity of water droplet of radius 1 x 10-4m and desity 1000 kg m-3descending through air of viscosity 19 x 10-6kg. m-1 s-1 is

Question # 13

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

Question # 14

Pressure exerted by a gas on the walls of its container in due to

Question # 15

One torr is equal to

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 Glycerin has viscosity _____ the viscosity of water:
A. More than
B. Equal to
C. Less than
D. None of these
2 Bernoulli's equation is based upon law of conversation of
A. mass
B. momentum
C. Energy
D. None
3 What is another name for laminar flow?
A. streamline
B. unsteady flow
C. turbulent flow
D. both (a) and (b)
4 The pressure will change in the pipe, as the fluid moves through that pipe of varying
A. cross-section
B. height
C. none of them
D. both of them
5 At high altitude the blood oozes out of the nose and ear because
A. The blood pressure increase at high altitudes
B. The percentage of oxygen in the air increase
C. The atmospheric pressure decrease there
D. The density of blood decrease at high altitudes
6 Fluids resist force, This property is called
A. Stiffness
B. Strength
C. Ductility
D. Elasticity
7 Bernoulli's equation is based upon law of conservation
A. Mass
B. Momentum
C. Energy
D. None of these
8 Blood pressure is measured by the instrument
A. stethoscope
B. sphygmomanometer
C. barometer
D. none of them
9 Drag force increases if speed of the object moving through the fluid:
A. Increases
B. Decreases
C. Remains constant
D. None of these
10 The un-steady streamline flow is called
A. laminar flow
B. turbulent flow
C. both of them
D. none of them

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