The throw of a cam is the maximum distance of the follower from
A.Starting to finish
B.Base circle
C.Pitch circle
D.Root circle
E.Inner most circle
Category: Mechanical Engineering Mcqs
Clay content of green sand is usually
A.1 to 3 percent
B.5 to 10 percent
C.18 to 30 percent
D.30 to 50 percent
In case of hand powered cranes, the capacity is generally restricted to
A.1 tonne
B.50 tonnes
C.150 tonnes
D.250 tonnes
Polar moment of inertia is
A.Same as moment of inertia
B.Applicable to masses whereas moment of inertia is applicable to area only
C.The moment of inertia for an area relative to a line or axis perpendicular to the plane of the area
D.The moment of inertia for an area relative to a line or axis parallel to the centroidal axis
E.The moment of inertia for an area ralative to a line or axis which is out the plane of area
Isolate the factor on which bursting pressure of boiler does not depend
A.Tensile strength of the shell
B.Thickness of the shell
C.Diameter of the shell
D.Shear strength of shell material
For a sensible heating the air is passed over a heating coil which may be
A.Heated by electric resistance
B.Heated by passing hot water through the coil
C.Heated by passing steam through the coil
D.Heated by direct solar radiations
E.Heated by any of the above methods
The modulus of rigidity is defined as
A.The ratio of true stress to true strain
B.The ratio of shear stress to shear strain
C.The ratio of longitudinal stress to longitudinal strain
D.The ratio of twisting moment to cross-sectional area
E.None of the above
Which of the following is donor impurity for semi-conductors?
A.Antimony
B.Aluminium
C.Boron
D.Indium
E.Callium
Hot tear
A.Is a physical property of non-ferrous materials
B.Is a process involving heating
C.Is a phenomenon occurring in materials ixposed to weather e.g. sun and rain
D.Is a defect in wood
E.Is a defect in castings
The boundary layer separation takes place if
A.Pressure gradient is zero
B.Pressure gradient is positive
C.Pressure gradient is negative
D.None of the above
