Fluid Mechanics Shear stress in a fluid flowing in a round pipe Is zero at the centre and varies linearly with the radius Varies parabolically across the cross-section Is zero at the wall and increases linearly to the centre Remains constant over the cross-section Is zero at the centre and varies linearly with the radius Varies parabolically across the cross-section Is zero at the wall and increases linearly to the centre Remains constant over the cross-section ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The equivalent diameter for flow through a rectangular duct of width B and height H is 2HB/(H + B) HB/(H + B) HB/2(H + B) 4HB/(H + B) 2HB/(H + B) HB/(H + B) HB/2(H + B) 4HB/(H + B) ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Interstage coolers are provided in a multistage compressor to Save power in compressing a given volume to a given pressure Achieve the exact delivery pressure Cool the delivered air None of these Save power in compressing a given volume to a given pressure Achieve the exact delivery pressure Cool the delivered air None of these ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The head loss in turbulent flow in a pipe varies As velocity Inversely as the square of diameter Inversely as the velocity As (velocity)² As velocity Inversely as the square of diameter Inversely as the velocity As (velocity)² ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Permanent pressure loss in a well designed venturimeter is about __________ percent of the venturi differential. 30 10 1 50 30 10 1 50 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle system (in SI units) is given below : Δ P/L = 375 x 10³ VOM + 10.94 x 10⁶ V²OM (SI units) If water is to be used as the fluidising medium, the minimum fluidisation velocity, VOM is 24 mm/s 12 mm/s 16 mm/s 28 mm/s 24 mm/s 12 mm/s 16 mm/s 28 mm/s ANSWER DOWNLOAD EXAMIANS APP
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