Equation of Continuity, Class 11 Physics NCERT Solutions

1. There will be total 10 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. Blood is flowing at the rate of 200 cm³/s in a capillary of cross-section area 0.5 m². The velocity of flow is mm/s is

0.4

0.3

0.2

0.1

Your comments:

Question 1 of 10

2. Flow of water in hilly area is an example of streamline flow.

False, if the slope is not smooth.

always false

True, only if the slope is smooth

always true

Your comments:

Question 2 of 10

3. A straight or curved path, such that tangent to it at any point gives the direction of flow of liquid at that point is known as

Turbulent flow

Terminal flow

Random flow

Streamline flow

Your comments:

Question 3 of 10

4. The flow of liquid in which its layer slides over another without mixing, is called

Laminar flow

Turbulent flow

Non-viscous flow

Ideal Flow

Your comments:

Question 4 of 10

5. Fire fighters have a jet attached to the head of their water pipes. This is done to

increase the mass of water flowing out in one second

increase the volume of water flowing out in one second

increase the velocity of water flowing out in one second

none of the above

Your comments:

Question 5 of 10

6. A non-viscous liquid flows through a hose. Liquid enters with velocity 6.4 m/s and leaves with velocity 2.5 m/s. What is the ratio of radii of the hose where the liquid enters and where it leaves?

5 : 1

5 : 8

8 : 5

8 : 1

Your comments:

Question 6 of 10

7. Deep water runs almost still. What does it explain.

Surface energy

Equation of continuity

Magnus effect

Bernoulli's Theorem

Your comments:

Question 7 of 10

8. The equation of continuity is a special case of the law of conservation of

Energy

Angular momentum

Mass

Momentum

Your comments:

Question 8 of 10

9. In case of streamlined flow of liquid, the loss of energy is

infinite

minimum

maximum

zero

Your comments:

Question 9 of 10

10. A garden sprinkler has 150 small holes, each of 2 mm² area. If water is supplied at the rate of 0.3 litres/s, then find the average velocity of the spray.

300 cm/s

22.5 cm/s

0.1 cm/s

100 cm/s

Your comments:

Question 10 of 10

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