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 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 # 2

In deriving the Bernoulli's equation, we assume that the fluid is

Question # 3

A fluid at a certain point has 50 J of potential energy per unit volume, 75 J of kinetic energy per unit volume,and 35 J of pressure energy per unit volume. the total energy of the fluid is

Question # 4

A person standing near the track of a fast moving train has tendency to fall towards it because of

Question # 5

The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called

Question # 6

High speed meteors rushing through air reduces to ashes because of:

Question # 7

The rain drop falling from the sky reach the ground with

Question # 8

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

Question # 9

In a normal healthy person the value of systolic pressure is

Question # 10

In the case of an incompressible fluid in stead flow the net rate of flow of mass entering one end of the tube of flow is equal to the net rate of flow of mass leaving the other end. This equation is called

Question # 11

The body will move with terminal velocity when it acquires

Question # 12

The density of water is 103kg/m3. The water pressure on a submarine is 2.0 x 107N/m2. The depth of the submarine below the surface of the water, in maters, is approximately

Question # 13

Fog droplets are suspended in air when their weight is balanced by:

Question # 14

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

Question # 15

When the different streamlines cannot cross each other, then this condition is known as

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The analysis of fluid motion becomes simplified by using
A. law of conservation
B. law of conservation of energy
C. both of them
D. none of them
2 The un-steady streamline flow is called
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
3 What is another name for laminar flow?
A. streamline
B. unsteady flow
C. turbulent flow
D. both (a) and (b)
4 Bernoulli's equation is based upon law of conversation
A. Mass
B. Momentum
C. Energy
D. None of these
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 In a surface tension experiment with a capillary tube water rises up to 0.1 m. if the same experiment is repeated on an artificial satellite, which is resolving around the earth, water will rise in the capillary tube up to a height of
A. 0.1 m
B. 0.2 m
C. 0.98 m
D. Full length of the capillary tube
7 The rain drop falling from the sky reach the ground with
A. Constant terminal velocity
B. Constant gravitational acceleration
C. Variable acceleration
D. acceleration greater than g
8 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
9 Bernoulli's equation is based upon law of conversation of
A. mass
B. momentum
C. Energy
D. None
10 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

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