The numerical value of gc. Newtons law proportionality factor is
A.32.174 lbm.ft/lbf.s2
B.9.806 kg.m/kgf.s2
C.1 kg.m/N.s2
D.any of these answers
Category: Fluid Mechanics and Solid Handling Mcqs
With the barometric reading of 28 in Hg 10 psia is equivalent to
A.37.57 psi suction
B.10 psi suction
C.13.757 psi suction
D.23.757 psi suction
Falling drops of rain acquire spherical shape on account of
A.temperature
B.viscosity
C.compressibility
D.surface tension
The viscosity of a gas
A.increases with increase in temperature
B.decreases with increase in temperature
C.remains unaffected with change in temperature
D.is greater than the viscosity of a liquid
Surface tension has the dimensionss
A.FL-2
B.FL
C.F-1 L3
D.FL-1
For the standard atmosphere upto the stratosphere temperature of air decreases uniformly at the rate of
A.0.65?C/m
B.0.065?C/m
C.0.0065?C/m
D.0.00065?C/m
Mercury is used in barometers due to
A.its very low vapour pressure
B.its high density
C.its low compressibility
D.negligible capillary effect
For v = 3 St and p = 0.80 g/cm3 in N.s/m2 is
A.0.375
B.3.75
C.0.24
D.2.4
A Newtonian fluid is one which
A.is frictionless and incompressible
B.has a linear relationship between the magnitude of applied shear stress and the resulting rate of deformation
C.has a nonlinear relationship between the magnitude of spplied shear stress and the resulting rate of deformation
D.has a vapor pressure of 1 N/m2 at 25?C.
Fluid continuum is a concept in which
A.the actual molecular structure is replaced by a hypothetical continuous medium
B.fluid particles are widely scattered in space
C.fluid is non-homogeneous
D.fluid density is very low
