Hydraulics and Fluid Mechanics in ME Two dimensional flows occurs when The magnitude and direction of the velocity do not change from point to point in the fluid The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane The velocity of successive fluid particles, at any point, is the same at successive periods of time The direction and magnitude of the velocity at all points are identical The magnitude and direction of the velocity do not change from point to point in the fluid The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane The velocity of successive fluid particles, at any point, is the same at successive periods of time The direction and magnitude of the velocity at all points are identical ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The dynamic viscosity of gases __________ with rise in temperature. Remain unaffected Increases Decreases None of these Remain unaffected Increases Decreases None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a lock-gate, the reaction between two gates is (where P = Resultant pressure on the lock gate, and α = Inclination of the gate with the normal to the side of the lock) 2p/sin (α/2) p/sinα 2p/sinα p/2sinα 2p/sin (α/2) p/sinα 2p/sinα p/2sinα ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Surge wave in a rectangular channel is an example ofi) steady flowii) unsteady flowiii) uniform flowiv) non-uniform flowThe correct answer is (ii) and (iii) (ii) and (iv) (i) and (iii) (i) and (iv) (ii) and (iii) (ii) and (iv) (i) and (iii) (i) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If V1 and V2 are the velocities of water at inlet and outlet of the draft tube respectively, then the efficiency of a draft tube is V1² / (V1² - V2²) V1 / (V1 - V2) (V1 - V2) / V1 (V1² - V2²) / V1² V1² / (V1² - V2²) V1 / (V1 - V2) (V1 - V2) / V1 (V1² - V2²) / V1² ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The centrifugal pump preferred for a specific speed between 80 to 160 r.p.m. is High speed with radial flow at outlet Medium speed with radial flow at outlet High speed with mixed flow at outlet Slow speed with radial flow at outlet High speed with radial flow at outlet Medium speed with radial flow at outlet High speed with mixed flow at outlet Slow speed with radial flow at outlet ANSWER DOWNLOAD EXAMIANS APP
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