Related Questions

The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for __________ at room temperature.
A Air
B Water
C Mercury
D Alcohol
In the Newton's law range, the terminal velocity of a solid spherical particle falling through a stationary fluid mass is __________ the fluid viscosity.
A Directly proportional to
B Inversely proportional to
C Inversely proportional to the square root of
D Independent of
A fluid whose apparent viscosity increases with shear rate is termed as the __________ fluid.
A Newtonion
B Viscous
C Dilatant
D Non-viscous
Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the first fluid, the pressure drop will
A Increase
B Decrease
C Remain unchanged
D Data insufficient to predict relative pressure drop
A fluid having no viscosity is known as ______ fluid.
A real
B ideal
C Newtonian
D non-Newtonian
If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of fluid, and suffix ‘I’ and ‘o’ stand for entry and exit conditions, then in a rotary machine whose degree of reaction is unity
A Vi = Vo
B Vt > Vo
C U
D V = Uo
Dimension of absolute viscosity is
A ML-1T-1
B MLT-1
C ML-1T
D MLT
If p = bearing pressure on projected bearing area, Z = absolute viscosity of lubricant and N = speed of journal, then the bearing characteristic number is given by
A $$\frac{{{\text{ZN}}}}{{\text{p}}}$$
B $$\frac{{\text{p}}}{{{\text{ZN}}}}$$
C $$\frac{{\text{Z}}}{{{\text{pN}}}}$$
D $$\frac{{\text{N}}}{{{\text{Zp}}}}$$
The ratio of absolute viscosity to mass density is known as
A Specific viscosity
B Viscosity index
C Kinematic viscosity
D Coefficient of viscosity
The units of dynamic or absolute viscosity are
A Metres2 per sec
B Kg-sec per meter
C Newton-sec per meter
D Newton-sec2 per meter

Next steps