__________ forces do not act in case of fluid flow.
-
Elastic -
Tensile -
Vibratory -
Centrifugal
Two piping system are said to be equivalent, when the __________ are same.
-
fluid flow rate & friction loss -
length & friction factor -
diameter & friction factor -
length & diameter
Pick out the correct statement pertaining to venturimeter.
-
A venturimeter with a fixed pressure drop discharges more, when the flow is vertically downward, than when the flow is vertically upward. -
The co-efficient of contraction of a venturimeter is always unity. -
For a fixed pressure drop, the discharge of a gas through a venturimeter is greater, when compressibility is taken into account, than when it is neglected. -
none of these.
For an unstable equilibrium of a floating body (where, M = metacentre.)
-
M is above G -
M is below G -
M & G coincide -
none of these
The actual velocity at vena-contracta for flow through an orifice from a reservoir is given by
-
Cv . 2gH -
Cc . 2gH -
Cd . 2gH -
Cv . Va
In hindered settling, the particles are
-
placed farther from the wall. -
not affected by other particles and the wall. -
near each other, -
none of these.
Rise of liquid in a capillary tube is due to
-
cohesion -
adhesion -
both (a) & (b) -
neither (a) nor (b)
A compressor that takes suction at a pressure below atmospheric and discharge against atmospheric pressure is called a __________ pump.
-
sump -
volute -
vacuum -
submerged
Weber number is the ratio of inertial force to __________ force.
-
surface tension -
gravity -
viscous -
elastic
The curve of metacentre for a floating body __________ the curve of buoyancy.
-
is always below -
is the evolute of -
intersects at right angle -
is tangential to
For an unstable equilibrium of a floating body (where, M = metacentre.)
-
M is above G -
M is below G -
M & G coincide -
none of these
The head loss due to sudden expansion is
