The amount of coal dust added to moulding sand depends on
A.shape of the casting
B.thickness of the casting
C.temperature of pouring
D.none of the above
Category: Engineeeing Mcqs
Which of the following furnace is used to convert liquid pig iron into steel?
A.Cupola
B.Open hearth furnace
C.Converter
D.Induction arc furnace
In air prelieater for boiler heat is least transferred by
A.Conduction
B.Convection
C.Conduction and convection
D.Radiation
E.Conduction, convection and radiation.
Bush bearings are
A.Phosphor bronze
B.Aluminium brass
C.Mild steel
D.White metal alloys
E.None of the above
The amount of resilience is equal to
A.The work required to deform the body zero stress to stress within elastic limit
B.Elastic energy stored in unit area of material
C.Equal to the area of the stress deformation diagram
D.None of the above
Thermal conductivity of liquids can be determined by
A.Guarded plate method
B.Searles method
C.Laby and Hercus method
D.Any of the above
E.None of the above
A strain gauge material should have low
A.Gauge factor
B.Sensitivity
C.Resistance temperature coefficient
D.All of the above
Formation of air pockets in pressure tunnel may be avoided by
A.Avoiding partial gate opening
B.Avoiding traps or pockets along the crown
C.Avoiding vortices formation
D.Avoiding small intakes
E.Any of the above
A geodimeter is based on the principle of
A.Optics
B.X-rays
C.Microwaves
D.Reflection of light waves
E.Propagation of modulated light waves
Higher pressure angle results in
A.Weaker teeth
B.Non-uniform motion transmission
C.Bigger size of gear teeth
D.Wider base and stronger teeth
E.Narrow base and weaker teeth
