Related Questions

The hardness and tensile strength in austenitic stainless steel can be increased by
A Hardening and cold working
B Normalizing
C Martempering
D Full annealing
Which of the following crystal structures characterises the austenitic stainless steel?
A Simple hexagonal
B Body centred cubic
C Face centred cubic
D None of these
Austenitic manganese steel used for making jaws of crushing machines contains about __________ percent manganese.
A 1.5-2
B 3.5-4.5
C 7-9
D 12-14
The alloy, mainly used for corrosion resistance in stainless steels is
A Silicon
B Manganese
C Carbon
D Chromium
Which of the following stainless steels is non-magnetic?
A Ferritic
B Martensitic
C Austenitic
D None of these
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
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
An alternator coupled to a _____ runs at slow speed, as compared to as compared to others.
A diesel engine
B hydraulic turbine
C steam turbine
D gas turbine
Stainless steel is welded using
A oxy-acetylene flame
B oxy-hydrogen flame
C arc welding
D inert gas arc welding

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