For the following questions answer them individually
Generally used fuel gas in gas welding is
Spot welding, projection welding and seam welding belongto the category of
Which one of the following is an example of solid state welding ?
The shape andsize of sand grains affects the following property :
The velocity distribution for flow over a flat plate is given by $$u = (y - y^2)$$ in whichu is velocity in metres per second at a distance y metres above the plate. What is the shear stress value at y = 0.15 m ? The dynamic viscosity of fluid is 8.0 poise.
Froude’s Number relates to
In pitot-tube the velocity of flow at a point is reduced to zero. That pointis called as
The velocity distribution in a pipe flow is parabolic if the flow is
Mercury does not wet the glass surface. This property of mercury is due to
Loss of head due to friction in a uniform diameter pipe with viscousflow is