- (A) Rotational
- (B) Unsteady
- (C) Turbulent
- (D) Non-uniform
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- (A) f = 0.079.NRe-0.25
- (B) f-0.5 = 4.07 loge (NRef)-0.6
- (C) Both ‘a’ and ‘b’
- (D) None of these
- (A) Inertial and drag forces are important
- (B) Drag, gravitational and buoyancy forces are important
- (C) Drag force and gravitational forces are important
- (D) None of the above
- (A) Where there is no velocity gradient
- (B) At higher temperatures
- (C) Only in Newtonian fluids
- (D) None of these
- (A) Dynamic similarity
- (B) Same efficiency
- (C) Same speed
- (D) Geometrical similarity
- (A) Bearing losses
- (B) Disk friction
- (C) Shock losses
- (D) Cavitation
- (A) d
- (B) 0.5 d
- (C) 2d
- (D) 4d
- (A) Lies above the centroid of the plane surface
- (B) Is independent of the specific weight of the fluid
- (C) Is different for different fluids
- (D) Is at the centroid of the plane surface
- (A) f1/4
- (B) 4f2
- (C) 2f1
- (D) f1/2
- (A) NPSH required
- (B) BHP required by the pump
- (C) Head of the liquid pumped
- (D) All
