ECAT Physics Fluid Dynamics Online Test

ECAT Physics Fluid Dynamics Online Test

ECAT Physics Fluid Dynamics Chapter Online Test

Total Questions: 269
Time Allowed: 120 Minutes
Total Marks: 269
How to Attempt Test: Please choose the right Option in MCQ-type question.
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Physics Fluid Dynamics Chapter Online Test

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Physics

1. A person is standing on a rotating stool spreading his arms. He suddenly contracts his arms. His

2. A particle of mass ‘m’ at rest is acted upon by a force ‘P’ for a time ‘t’. Its kinetic energy after an interval ‘t’ is

3. S.I unit of magnetic flux is

4. When a horse pulls a cart, the force that makes the horse run forward is the force exerted by

5. A man fires a bullet of mass 200 g at a speed of 5 m/s. The gun is of one kg mass. By what velocity the gun rebounds backwards?

6. If a train traveling at 72 kmph is to be brought to rest in a distance of 200 meters, then its retardation should be

7. The high blood pressure is

8. When the velocity of a liquid flowing steadily in a tube increases, its pressure?

9. Distance traveled by a body falling from rest in the first, second and third second is in the ratio of

10. In Torricelli’s theorem, the speed of efflux is equal to

11. Two boats rowing close to one another tend to collide. This is due to the

12. Two forces P and Q have a resultant perpendicular to P. The angle between the forces is:

13. An airplane flies 400 m from north and then flies 300 m south and then flies 1200 m unwards then net displacement is

14. The mass of fluid passing through any cross-section per unit time is called

15. Pressure exerted by a gas on the walls of its container is due to

16. Which of the following is not the unit of energy?

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

18. A boat of mass 40 kg is at rest. A dog of mass 4 kg moves in the boat with a velocity of 10 m/s. What is the velocity of boat?

19. Which of the following sets of concurrent forces may be in equilibrium?

20. Two projectiles are fired from the same point with the same speed at angles of projection 60° and 30° respectively. Which one of the following is true?

21. Three vectors satisfy the relation A . B and A . C = 0, then A is parallel to

22. The value of g on the moon whose diameter is ¼ that of earth is 1/6 of that of earth. The ratio of escape velocities at moon and earth’s surface is nearly:

23. The apparent loss in weight of the block in the liquid is

24. If a body starts from rest and travels 120 cm in the 6th second then what is the acceleration?

25. Two forces of 4 dyne and 3 dyne act upon a body. The resultant force on the body can only be


 

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