A. Less than
B. More than
C. Equal to
D. Not related to
A. The length of entrance region of pipe, in which full development of fluid flow takes place
such that velocity profile does not change downstream, is called the transition length
B. Transition length for laminar flow of Newtonian fluids in a pipe of diameter ‘d’ is equal to
0.05. D.NRe
C. Transition length for turbulent flow of Newtonian fluids in a smooth pipe of diameter ‘d’ is
equal to 50 D
D. All A., B. and C.
A. Same rate of flow passes through
B. Head loss is same through
C. Rate of flow in each pipe is proportional to the length of
D. Total flow rate is the sum of flow rate in
A. Pipe becomes smoother with use
B. Friction factor increases linearly with time
C. Absolute roughness decreases with time
D. Absolute roughness increases linearly with time
A. Shear stress and velocity
B. Velocity gradient and pressure intensity
C. Shear stress and rate of angular deformation in a fluid
D. Pressure gradient and rate of angular deformation
A. Water at room temperature
B. Air at room temperature
C. Oxygen at room temperature
D. Nitrogen at room temperature
A. Mass
B. Energy
C. Both A. & B.
D. Momentum