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	Blood is an	A. Compressible fluid B. incompressible fluid C. hard D. none of them
2	A water hose with an internal diameter of 20 mm at the outlet discharges 30 kg of water in 60 s. What is water speed at the outlet if density of water is 1000 kg/m³during its steady flow	A. 1.3 m/s B. 1.6 m/s C. 1.9 m/s D. 2.2 m/s
3	The pressure will change in the pipe, as the fluid moves through that pipe of varying	A. cross-section B. height C. none of them D. both of them
4	The equation of continuity is	A. A₁A_{2 = V}₁V₂ B. A_1/_V_{1 =}A_2/V₂ C. _V_1/A₁₌V_2/A₂ D. A₁_V_{1 =}A₂V₂
5	The body will move with terminal velocity when it acquires	A. minimum speed B. zero speed C. maximum speed D. none of them
6	When the speed of a body in a fluid increases then the drag force	A. decreases B. becomes zero C. increases D. non of them
7	According to Stoke's law, drag force depends on	A. Initial velocity B. Final velocity C. Terminal velocity D. Instantaneous velocity
8	The blood pressure of a person	A. decrease with age B. increase with age C. has no effect with age D. none of them
9	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
10	Deep water almost runs still when surface water flow in rivers. What does it explains	A. Magnus effect B. Equation of continuity C. Surface energy D. Bernoulli's equation