Search
.Management Sciences
Category: Fluid Mechanics
The theoretical value of coefficient of contraction of a sharp edged orifice is_______________?
A. 0.611
B. 0.85
C. 0.98
D. 1.00
In series-pipe problems_______________?
A. the head loss is same through each pipe
B. the discharge is same through each pipe
C. a trial solution is not necessary
D. the discharge through each pipe is added to obtain total discharge
The discharge over a broad crested weir is maximum when the depth of flow is_______________?
A. H/3
B. H/2
C. 2 H/5
D. 2 H/3
where H is the available head
The discharge through a V- notch varies as______________?
A. H1/2
B. H3’2
C. H5/2
D. H5’4 where H is head
Which of the following velocity potentials satisfies continuity equation ?
A. x2y
B. x2-y2
C. cosx
D. x2 + y2
The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as__________________?
A. center of gravity
B. center of buoyancy
C. center of pressure
D. metacentre
If a sphere of diameter 1 cm falls in castor oil of kinematic viscosity 10 stokes, with a terminal velocity of 1.5 cm/sec, the coefficient of drag on the sphere is________________?
A. less than 1
B. between 1 and 100
C. 160
D. 200
If a vessel containing liquid moves downward with a constant acceleration equal to ‘g’ then_____________?
A. the pressure throughout the liquid mass is atmospheric
B. there will be vacuum in the liquid
C. the pressure in the liquid mass is greater than hydrostatic pressure
D. none of the above
Coefficient of discharge for a totally submerged orifice as compared to that for an orifice discharging free is__________________?
A. slightly less
B. slightly more
C. nearly half
D. equal
The continuity equation pi V,A,= p2V2A2 is based on the following assumption regarding flow of fluid______________?
A. steady flow
B. uniform flow
C. incompressible flow
D. frictionless flow
where pi and p2 are mass densities
Recent Comments