1
GATE ME 2007
MCQ (Single Correct Answer)
+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
$$232.36$$
2
GATE ME 1994
MCQ (Single Correct Answer)
+1
-0.3
Prandtl’s mixing length is turbulent flow signifies
A
the average distance perpendicular to the mean flow covered by the mixing particles.
B
the ratio of mean free path to characteristic length of the flow field
C
the wavelength corresponding to the lowest frequency present in the flow field
D
the magnitude of turbulent kinetic energy.
3
GATE ME 1988
MCQ (Single Correct Answer)
+1
-0.3
The parameters which determines the friction factor for turbulent flow in a rough pipe are:
A
Froude number and relative roughness
B
Froude number and Mach number
C
Reynolds number and relative roughness.
D
Mach number and relative roughness
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Turbo Machinery
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