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MDCAT Practice Test - Practice Test - Physics - Fluid Dynamics - 2026 Quiz

Attempt 10 MCQs on MDCAT Practice Test - Practice Test - Physics - Fluid Dynamics (Year 2026) | Quiz 8

71. A pipe of radius 2 cm carries water at 1.5 m/s. It connects to a pipe of radius 1 cm. Find water speed in the smaller pipe.



72. A horizontal pipe has P=1.2×10⁵ Pa, v=2 m/s. It narrows so area halves. Find pressure in narrow section (ρ=1000).



73. Water flows in a pipe of diameter 10 cm at 1.2 m/s. It enters a section of diameter 5 cm. What is the speed in the narrow section?



74. Water flows at 2 m/s in a pipe of diameter 5 cm. Viscosity 0.001 Pa·s. Is the flow laminar or turbulent?



75. What is the maximum velocity for laminar flow of water in a pipe of diameter 10 cm? (η=0.001 Pa·s, ρ=1000)



76. Water flows from a hole 5 m below the surface of a large tank. Find exit velocity (g=10).



77. Blood flows in an artery of area 2 cm² at 0.5 m/s. It enters a stenosis of area 1 cm². Density 1050 kg/m³. Find pressure drop.



78. If the radius of a spherical particle falling in a viscous fluid is doubled, terminal velocity becomes:



79. A horizontal pipe has pressure 2×10⁵ Pa, velocity 2 m/s, area 3 cm². At a constriction area 1 cm², find pressure (ρ=1000).



80. A large water tank has cross-section 0.5 m² and a hole of area 1 cm² at the bottom, 10 m below water level. Find exit velocity (g=10).



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