Related Questions

The cutting fluid mostly used for machining steel is
A Water
B Soluble oil
C Dry
D Heavy oils
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
In machining metal, cutting force at the cutting edge is measured by a
A Wattmeter
B Dynamometer
C Hydrometer
D Pyrometer
No cutting fluid is normally used, while machining
A Cast iron
B Aluminium
C Mild steel
D Stainless steel
Compressed dry air is used as the cutting fluid, while machining
A Steel
B Cast iron
C Aluminium
D None of these
'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
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
Turning/machining of __________ usually does not require any cutting fluid.
A Cast iron
B Stainless steel
C Mild steel
D Copper
Which of the following material is not used in alloy steels?
A Molybdenum
B Nickel
C Chromium
D Sodium

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