ME 308: Viscosity, Assumptions, Manometer, Lateral, Fluid Pressure and Midterm 1

honey more viscous

viscous represents resistenace to flow

as we move away

true

when two layers of fluid are flowing at different velocity

with increase of viscosity

true

highly vicous fluid to be laminar

as we move away from any solid boundary

the effect of viscosity

the higher the viscosity

for gases viscosity

the assumption of incompressibility

the assumption of inviscid does not hold

the assumption of inviscid implies that the velocity is zero

the assumption of steady flow implies that all fluid properties remain constant

the assumption of uniform flow implies that all fluid properties remain

a device consists a disk that rotated by shaft

0.15 N/m2

consider a flow in a round pipe

Option A

consider a flow in a round pipe with a velocity profile given below

all of the assumptions provided

water is flowing in a pipe. using the manometer system shown below, determine the pressure at point 2.

40 Kpa

what is the pressure of the air in the tank

110 Kpa

differential manometers can be used to measure differences in piezometric

pa+unit*za-unit*h-unit*(zb-h)=pb

levees in new orleans 3 m high

70632 N

calculate center of pressure for the 6 ft long section.

4 ft

calcalate the resultant force for 4ft long horizontal section

13478 lb

calculate the value for P.

67594.18 lb

pressure always varies along the horizontal direction

false

lateral pressure depends

true

according to gage scale

true

a manometer is only used to measure

true

there two scales to measure the pressure

true

for water, it is possible

true

stable condition

archimedes principle

true

the ship floats in the water

true

in neutrally stable condition there is no tendency

true

for a slanted object

false

a pressure force acts at a point

true

differential manometers can be used

true

for a floating object

true

a positive value of metacentric height

true

in the lagrangian approach

true

the continuity equation

true

acceleration can be represented

true

stream function is used to describe

false

based on the continuity equation

false