1
GATE ME 2014 Set 3
+1
-0.3
Consider the turbulent flow of a fluid through a circular pipe of diameter, $$D.$$ Identify the correct pair of statements.
$${\rm I}.$$ The fluid is well-mixed
$${\rm II}.$$ The fluid is unmixed
$${\rm III}.$$ $$R{e_D} < 2300$$
$${\rm IV}.$$ $$R{e_D} > 2300$$
A
$${\rm I},$$ $${\rm III}$$
B
$${\rm II},$$ $${\rm IV}$$
C
$${\rm II},$$ $${\rm III}$$
D
$${\rm I},$$ $${\rm IV}$$
2
GATE ME 2013
+1
-0.3
For steady, fully developed flow inside a straight pipe of diameter $$D,$$ neglecting gravity effects, the pressure drop $$\Delta p$$ over a length $$L$$ and the wall shear stress $${\tau _w}$$ are related by
A
$${\tau _w} = {{\Delta pD} \over {4L}}$$
B
$${\tau _w} = {{\Delta p{D^2}} \over {4{L^2}}}$$
C
$${\tau _w} = {{\Delta pD} \over {2L}}$$
D
$${\tau _w} = {{4\Delta pL} \over D}$$
3
GATE ME 2007
+1
-0.3
Oil flows through a $$200mm$$ diameter horizontal cast iron pipe (friction factor, $$f=0.0225$$) of length $$500m.$$ The volumetric flow rate is $$0.2{m^3}/s.$$ The head loss (in $$m$$) due to friction is (assume $$g=9.81$$ $$m/{s^2}$$)
A
$$116.18$$
B
$$0.116$$
C
$$18.22$$
D
$$232.36$$
4
GATE ME 2007
+1
-0.3
Consider steady laminar incompressible axi-symmetric fully developed viscous flow through a straight circular pipe of constant cross - sectional area at a Reynolds number of $$5.$$ The ratio of inertia force to viscous force on a fluid particle is
A
$$5$$
B
$${1 \over 5}$$
C
$$0$$
D
$$\infty$$
GATE ME Subjects
Engineering Mechanics
Strength of Materials
Theory of Machines
Engineering Mathematics
Machine Design
Fluid Mechanics
Turbo Machinery
Heat Transfer
Thermodynamics
Production Engineering
Industrial Engineering
General Aptitude
EXAM MAP
Joint Entrance Examination