Related Questions

The alloying element which can replace tungsten in high speed steels is
A Nickel
B Vanadium
C Cobalt
D Molybdenum
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
The cutting speed for drilling aluminium, brass and bronze with carbon steel drills is _________ cutting speed for drilling mild steel with high speed steel drills.
A Equal to
B Less than
C More than
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
As the cutting speed increases, the tool cutting forces
A Remain constant
B Increases
C Decreases
D First increases and then decreases
What is the type of shielding gas for GTAW (Gas Tungsten Arc Welding) used for carbon steels only called?
A Argon H2
B Argon CO2
C Argon Helium
D Helium
For machining a mild steel workpiece by a high speed steel tool, the average cutting speed is
A 5 m/min
B 10 m/ min
C 15 m/min
D 30 m/min
For machining a cast iron workpiece by a high speed steel tool, the average cutting speed is
A 10 m/min
B 15 m/min
C 22 m/min
D 30 m/min
The average cutting speed for turning brass with a high speed steel tool is
A 15 to 19 m/min
B 25 to 31 m/min
C 60 to 90 m/min
D 90 to 120 m/min
The average cutting speed for turning mild steel with a high speed steel tool is
A 15 to 19 m/min
B 25 to 31 m/min
C 60 to 90 m/min
D 90 to 120 m/min

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