Fluid Mechanics Volume of liquid displaced by a floating body is equivalent to its Submerged weight Own volume Submerged volume Own weight Submerged weight Own volume Submerged volume Own weight ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said to have the same hydraulic roughness, when they have equal values of Friction co-efficient for flows at equal Reynold number Relative roughness All of these Absolute roughness Friction co-efficient for flows at equal Reynold number Relative roughness All of these Absolute roughness ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The drag co-efficient for a bacterium moving in water at 1 mm/s, will be of the following order of magnitude (assume size of the bacterium to be 1 micron and kinematic viscosity of water to be 10⁻⁶m²/s). 0.44 0.24 24000 24 0.44 0.24 24000 24 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics While starting an axial flow pump, its delivery valve should be kept Open Either open or closed Closed None of these Open Either open or closed Closed None of these ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The ratio of actual discharge to theoretical discharge through an orifice is equal to Cd/Cv Cc . Cv Cv . Cd Cc . Cd Cd/Cv Cc . Cv Cv . Cd Cc . Cd ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Net positive suction head (NPSH) of a centrifugal pump must be Less than barometric pressure Equal to the vapour pressure of the liquid Less than the vapour pressure of the liquid Greater than the vapour pressure of the liquid Less than barometric pressure Equal to the vapour pressure of the liquid Less than the vapour pressure of the liquid Greater than the vapour pressure of the liquid ANSWER DOWNLOAD EXAMIANS APP
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