Related Questions

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
The cutting speed for drilling aluminium, brass and bronze with high speed steel drills varies from
A 10 to 20 m/min
B 18 to 30 m/min
C 24 to 45 m/min
D 60 to 90 m/min
The cutting speed for drilling copper with high speed steel drills varies from
A 10 to 20 m/min
B 18 to 30 m/min
C 24 to 45 m/min
D 60 to 90 m/min
In drilling softer materials, the cutting speed is ___________ as compared to harder materials.
A Same
B Low
C High
D None of these
High speed steel cutting tools operate at cutting speeds _________ than carbon steel tools.
A 2 to 3 times lower
B 2 to 3 times higher
C 5 to 8 times higher
D 8 to 20 times higher
As the cutting speed increases, the tool cutting forces
A Remain constant
B Increases
C Decreases
D First increases and then decreases
The cutting speed is maximum while machining _________ with a high speed steel tool.
A Cast iron
B Mild steel
C Brass
D Aluminium
The cutting speed is minimum while machining _________ with a high speed steel tool.
A Cast iron
B Mild steel
C Brass
D Aluminium
The main purpose of a boring operation, as compared to drilling, is to
A Drill a hole
B Finish the drilled hole
C Correct the hole
D Enlarge the existing hole
In drilling operation, the metal is removed by
A Shearing
B Extrusion
C Shearing and extrusion
D Shearing and compression

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