< Fluid Mechanics Important Questions | Daily Analysis Video 22 Jan to 29 Jan | SSC JE 2017-18

## STAY WITH US # Fluid Mechanics Important Questions | Daily Analysis Video 22 Jan to 29 Jan | SSC JE 2017-18

## Fluid Mechanics Questions

A Hydrometer is used to determine the-
specific gravity of liquids
Mercury does not wet the glass due to the property of-
surface tension
Density of water is maximum at-
4˚C
Newton’s law of viscosity is a relationship between-
shear stress and rate of angular distortion
Flow through a supersonic nozzle is an example of-
open system
Energy loss in flow through nozzle as compared to venturimeter is-
same
A Rotameter is used to measure-
Flow of fluids
Stanton diagram is a plot of
log of friction factor against log of Reynolds number
Bernoulli’s theorem deals with the law of conversation of-
Energy
A pitot tube is used to measure-
Velocity of flow
Navier Stokes equations are associated with-
Viscous flow
Capillary action is due to-
surface tension
At what distance (r) from the centre of a pipe of radius (R) does the average velocity occur in laminar flow-
r= 0.707R
Velocity distribution at any section of pipe for steady laminar flow-
Parabolic
Gauge pressure is equal to-
Absolute pressure-atmospheric pressure
The value of shear stress for fluid at rest-
Zero
The stress-strain relationship of the Newtonian fluid is-
Linear
An ideal flow of any fluid must fulfil -
Continuity Equation
In manometer a better liquid combination is one having-
Lower Surface tension