Category: Fluid Mechanics for Chemical

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. Elastic
B. Tensile
C. Vibratory
D. Centrifugal

A. Q∝N : H∝N2 : P∝N3
B. Q∝N2 : H∝N3 : P∝N
C. Q∝N : H∝N3 : P∝N2
D. Q∝N3 : H∝N : P∝N2

A. Is zero for incompressible liquid
B. Decreases with pressure
C. Is independent of temperature & pressure
D. Increases with pressure

A. Heat conduction to viscosity of a fluid
B. Cp/Cv of a fluid
C. Elastic force to pressure force in the fluid flow
D. Inertial force to elastic force in the fluid flow

A. Hyperbola
B. Parabola
C. Semi-circle
D. Semi-ellipse

A. Reynolds
B. Hagen and Poiseuille
C. Pascal
D. Blake-Plummer

A. Rotation
B. Translation
C. Linear deformation
D. Angular deformation

A. 1
B. 1.5
C. 2
D. 2.5

A. 2 to 5
B. 7 to 15
C. 15 to 25
D. >25