ECAT Pre Engineering Physics Chapter 6 MCQ Test With Answer

Top Scorers Of Physics ECAT Pre Engineering Chapter 6 Fluid Dynamics MCQ`s Test

Sr.#	Question	Answer
1	The property of fluids due to which they resist their own flow is called:	A. Drag force B. Surface tension C. Viscosity D. None of these
2	Where the streamlines are very far apart from each other, the pressure will be	A. low B. zero C. high D. all of them
3	The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe is called	A. constant rate B. volume rate C. flow rate D. steady rate
4	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 h^1/2 C. Proportional to h D. Proportional to h²
5	Above a certain velocity of a fluid is called	A. turbulent flow B. steady flow C. either of them D. both of them
6	A high concentration of red blood cells increases its viscosity from	A. 3 - 5 times that of mercury B. 5 - 8 times that of mercury C. 3 - 5 times that of water D. 5 - 8 times that of water
7	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
8	When the velocity of a liquid flowing steadily in a tube increases, its pressure?	A. Decreases B. Increases C. Remains same D. Zero
9	Viscosity of water is ______ that of air but ___ that of plasma.	A. More, more B. Less, more C. Less, less D. More, less
10	What is another name for laminar flow?	A. streamline B. unsteady flow C. turbulent flow D. both (a) and (b)