Fluid Mechanics While starting a centrifugal pump, its delivery valve should be kept Either opened or closed ; it does not make any difference Opened Closed Either opened or closed; depending on the fluid viscosity Either opened or closed ; it does not make any difference Opened Closed Either opened or closed; depending on the fluid viscosity ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The equation given below is called the __________ . f-0.5 = 4.07 loge (NRe√f)-0.6 Colebrook formula None of these Fanning equation Von-Karman equation Colebrook formula None of these Fanning equation Von-Karman equation ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The velocity profile exhibited by laminar flow of Newtonion fluids is such that the velocity distribution w.r.t. radius of the circular pipe is a/an __________ with the apex at the centre line of the pipe. Parabola Semi-ellipse Hyperbola Semi-circle Parabola Semi-ellipse Hyperbola Semi-circle ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics In case of turbulent flow of a Newtonion fluid in a straight pipe, the maximum velocity is equal to (where, Vavg = average fluid velocity) Vavg 1.5 Vavg 1.8 Vavg 1.2 Vavg Vavg 1.5 Vavg 1.8 Vavg 1.2 Vavg ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Velocity distribution for flow between two fixed parallel plates Varies parabolically across the section Is zero at the plates and increases linearly to the midplane None of these Is constant over the entire cross-section Varies parabolically across the section Is zero at the plates and increases linearly to the midplane None of these Is constant over the entire cross-section ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The peripherial velocity at inlet of a centrifugal pump having inlet diameter of 25 cms and rotating at 950 rpm is __________ m/sec. 12.4 736.4 186.2 1.8 12.4 736.4 186.2 1.8 ANSWER DOWNLOAD EXAMIANS APP
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