Fluid Mechanics The inherent characteristic of an equal percentage valve relating flow rate 'q' with valve stem movement 'x' are described by the equation dq/dx = K dq/dx = K.q dq/dx = K/q dq/dx = Kq² dq/dx = K dq/dx = K.q dq/dx = K/q dq/dx = Kq² ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Net positive suction head (NPSH) of a centrifugal pump must be Equal to the vapour pressure of the liquid Greater than the vapour pressure of the liquid Less than the vapour pressure of the liquid Less than barometric pressure Equal to the vapour pressure of the liquid Greater than the vapour pressure of the liquid Less than the vapour pressure of the liquid Less than barometric pressure ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the __________ decreases. Head of the liquid pumped All of these BHP required by the pump NPSH required Head of the liquid pumped All of these BHP required by the pump NPSH required 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) 1.5 Vavg 1.8 Vavg Vavg 1.2 Vavg 1.5 Vavg 1.8 Vavg Vavg 1.2 Vavg ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Terminal velocity is A fluctuating velocity Attained after moving one-half of total distance None of these A constant velocity with no acceleration A fluctuating velocity Attained after moving one-half of total distance None of these A constant velocity with no acceleration ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics With the increase in depth, the hydrostatic pressure in an unaccelerated incompressible fluid (in a constant gravitational field) Remains constant Decreases Increases linearly Increases exponentially Remains constant Decreases Increases linearly Increases exponentially ANSWER DOWNLOAD EXAMIANS APP
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