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

What are the SI base units of the coefficient of viscosity

Question # 2

At the starting point of the free fall motion of an object, its acceleration will be

Question # 3

At high altitude the blood oozes out of the nose and ear because

Question # 4

Bernoulli's equation is based upon law of conversation

Question # 5

A tube is tapered from 20 cm diameter to 2 cm diameter, the velocity at the first cross-section is 50 cm/s, then the velocity at the second cross-section is

Question # 6

The velocity gained by the fluid in falling through the distance (h1 - h2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the

Question # 7

At high speed, fluid friction _____ and fuel consumption ___,:

Question # 8

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

Question # 9

During the steady flow, different streamlines

Question # 10

Which of the following has the greatest coefficient of viscosity?

Question # 11

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

Question # 12

The law of conservation of mass gives us the

Question # 13

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

Question # 14

Ball pen functions on the principle of

Question # 15

Machine parts are jammed due to:

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ECAT Physics Chapter 6 Important MCQ's

Sr.# Question Answer
1 The force exerted by the fluid in a hydraulic pump on the piston is 10 cm2, the fluid pressure on the piston is, in N/cm2
A. 20
B. 200
C. 2000
D. 20,000
2 The velocity gained by the fluid in falling through the distance (h1 - h2) under the action of gravity is equal to the speed of the action of gravity is equal to the speed of the
A. orifices
B. efflux
C. fluid
D. none of them
3 When the different streamlines cannot cross each other, then this condition is known as
A. continuity condition
B. turbulent flow condition
C. steady flow condition
D. none of them
4 The equation of continuity
A1V1= A2V2is for the flow of
A. an ideal fluid
B. an incompressible fluid
C. a non visconcous fluid
D. all of the above
5 In case of streamed lined flow of liquid, the loss of energy is
A. Maximum
B. Minimum
C. Infinite
D. equal to what is in turbulent flow
6 The smooth or steady streamline flow is known as
A. laminar flow
B. turbulent flow
C. both of them
D. none of them
7 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
A. Independent of h
B. Proportional to h1/2
C. Proportional to h
D. Proportional to h2
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 The direction of the streamlines is the same as the direction of the
A. force
B. torque
C. velocity
D. weight
10 Above a certain velocity of a fluid is called
A. turbulent flow
B. steady flow
C. either of them
D. both of them

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