In which contact condition case the value of coefficient of friction i – McqOptions

MCQOPTIONS

1.	In which contact condition case the value of coefficient of friction is expected to be highest?
A.	Steel on steel
B.	Steel on steel with two layers of graphite service in between
C.	Steel on concrete
D.	Steel on steel, greased plates
E.	Packing and liner
Answer» D.

Discussion

No Comment Found

Related MCQs

The ratio of inertia force to pressure forces is related with a non-dimensional number known as
What pressure, in Mpa, must be maintained in a diving bell, at a depth of 1200 m, to keep out the ocean water (S = 1.03)
The depth of oil having specific gravity 0.6 to produce a pressure of 3.6 kg/cm2 will be
As the pump speed increases, its NPSH (net positive section head) requirement
The shear stress in a turbulent pipe flow
The radial component of velocity in a free vortex is
A right circular cylinder open at the top is filled with liquid (specific gravity 1.2) and rotated about its vertical axis at such speed that half the liquid spills out. The pressure at centre of the bottom is
The length of mercury column at a place at an altitude will vary with respect to that at ground in a
A fluid in which resistance to deformation is independent of the shear stress is known as
Newton's law of viscosity states that shear stress is directly proportional to