Fluid Mechanics for Chemical MCQs

724 MCQs  — Chemical Engineering MCQs  (Page 10 of 73)

For a fluid rotating at constant angular velocity about vertical axis as a rigid body, the pressure intensity varies as the___________________?
A. Square of the radial distance
B. Radial distance linearly
C. Inverse of the radial distance
D. Elevation along vertical direction
For a given fluid flow rate, which of the following incurs maximum head loss ?
A. Orificemeter
B. Venturimeter
C. Flow nozzle
D. All of them incur the same head loss
An isentropic process is the one, in which_________________?
A. Pv = constant
B. Pvr= constant
C. Pvr = constant, and process is reversible
D. None of these
The speed of a sound wave in a gas is analogous to the speed of ______________________?
A. An elementary wave in an open channel
B. Flow in an open channel
C. A disturbance travelling upstream in moving fluid
D. None of these
Which law/principle of solid mechanics is similar/equivalent to Newton’s law of viscosity in fluid mechanics ?
A. Archimedes principle
B. Newton’s second law of motion
C. Hooke’s law
D. Newton’s third law of motion
Pick out the correct statement pertaining to transition/ entrance length in fluid flow ?
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