ECAT Pre Computer Science Chapter 6 MCQ Test With Answer

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

Sr.#	Question	Answer
1	The law of conservation of energy gives us	A. equation of continuity B. Bernoulli's theorem C. both of them D. none of them
2	Terminal velocity is the maximum velocity attained by a spherical droplet when the drag force______the weight of droplet:	A. Is smaller than B. Is greater than C. Becomes equal to D. None of these
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	The product of cross-sectional area of the pipe and the fluid speed at any pint along the pipe is	A. very high B. very low C. constant D. zero
5	The un-steady streamline flow is called	A. laminar flow B. turbulent flow C. both of them D. none of them
6	The flow of an ideal fluid is	A. streamline flow B. incompressible flow C. non-viscous D. all of the above
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	Blood vessels can be stretch like rubber, therefore they are	A. rigid B. hard C. very thick D. not rigid
9	Density of fluid is defined as:	A. Its volume to mass ratio B. Product of volume and mass C. Its mass of volume ratio D. None of these
10	Drag force increases if speed of the object moving through the fluid:	A. Increases B. Decreases C. Remains constant D. None of these