The equation of continuity of flow is applicable when
A.The flow is one dimensional
B.The flow is steady
C.The flow is compressive
D.The velocity is uniform over the cross section
E.None of the above
Category: Engineeeing Mcqs
Balls for a ball bearing are made of
A.Stainless steel
B.Carbon chrome steel
C.High speed steel
D.Stainless steel
E.Mild steel
Exhaust gases from a engine possess
A.Potential energy
B.Kinetic energy
C.Chemical energy
D.Solar energy
E.Stored energy
Radial distance from the top to the pitch circle for a tooth is known as
A.working depth
B.dedendum
C.addendum
D.None of the above
In the theory of lubrication the assumption is made that
A.The velocity distribution is the same at all cross-sections
B.The velocity distribution at any section is the same as if the plates were parallel
C.The pressure variation along the bearing is the same as if the plates were parallel
D.The velocity varies linearly between the two surfaces
E.The velocity varies linearly between the two surfaces
A worker’s real wages are determined by
A.The average daily wage
B.The purchasing power of his earnings
C.The money value of his production
D.The actual amount paid in lieu of work done
E.Any of the above
The total energy grade line in pipe flow is a graphical representation of Bernoullis equation and represents the sum of elevation head pressure head and velocity head measured above
A.the centre line of pipe
B.the top of the pipeline
C.the bottom of the pipeline
D.the arbitrary horizontal datum
Which of the following ray has least wavelength?
A.Cosmic rays
B.X-rays
C.Ultraviolet rays
D.Infra-red rays
E.Yellow light rays
Heat is transferred from an electric bulb mainly by
A.Conduction
B.Convection
C.Convection and conduction
D.Radiation
E.Conduction, convection and radiation.
Case hardening
A.Is done to induce hardness in the core of materials
B.Is followed by tempering
C.Is preceded by tempering
D.Is allowed by carburizing
E.Is done to get a soft ductile interior with a very hard surface
