Related Questions

For better strength and stability, the fine grained soils and coarse grained soils are compacted respectively as
A dry of OMC and wet of OMC
B wet of OMC and dry of OMC
C wet of OMC and wet of OMC
D dry of OMC and dry of OMC where OMC is optimum moisture content
Coarse grained steels have
A Low toughness
B No tendency to distort
C High density
D Very high toughness
A fine grained grinding wheel is used to grind
A Hard and brittle materials
B Soft and ductile materials
C Hard and ductile materials
D Soft and brittle materials
The most suitable method for drainage of fine grained cohesive soils is
A well ppint system
B vacuum method
C deep well system
D electroosmosis method
A fine grained grinding wheel should not be used for grinding __________ materials.
A Hard
B Brittle
C Soft & ductile
D None of these
Steels with high carbon equivalent have poor weldability, because in these steels during welding
A Carbon and other alloying elements get oxidised from the weld pool
B Excessive ferrite forms in the heat affected zone leading to poor toughness of the weld
C Martensite forms in the heat affected zone leading to poor toughness/ductility of the weld
D Segregation of carbon and other element occurs in the weld pool leading to poor properties of the weld
For hardening alloy steels and high speed steels, they are heated to
A 1100 to 1300°C
B 1300 to 1500°C
C 500 to 600°C
D 700 to 900°C
'Killed steels' are those steels
A Which are destroyed by burning
B Which after their destruction are recycled to produce fresh steel
C Which are deoxidized in the ladle with silicon and aluminium
D In which carbon is completely burnt
Ferric stainless steels compared to austenitic stainless steels
A Have lower corrosion resistance
B Are harder to fabricate
C Are less ductile and hence less suitable for cold pressing
D All of the above
Melt spinning of polymers involves the forcing of polymer melt through spinnerettes (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the __________ fibres.
A Acrylic
B Polyester
C Nylon 6:6
D Polypropylene

Next steps