The maximum possible draft in cold rolling of sheet increases with the
Increase in coefficient of friction
Decrease in coefficient of friction
Decrease in roll radius
Decrease in roll velocity
- A left hand tool on a lathe cuts most efficiently when it travels
- In a metal arc welding process, metal transfer across the arc may take place by a method of material…
- A twist drill is a
- Which of the following parameters govern the value of shear angle in continuous chip formation?
- The broaching operation in which either the work or the tool moves across the other, is known as
- In an interchangeable assembly, shafts of size 25.000 -0.0100⁺⁰⁰⁴⁰…
- In order to achieve a specific surface finish in single point turning, the most important factor to…
- If a particular Fe-C alloy contains less than 0.83% carbon, it is called
- The cutting speed for counter-boring should be _________ that of drilling operation.
- Which of the following statement is correct for oblique cutting system?
- In determining the various forces on the chip, Merchant assumed that the
- Relief angles on high speed steel tools usually vary from
- The grade of grinding wheel depends upon
- High speed steel cutting tools operate at cutting speeds _________ than carbon steel tools.
- Flank wear occurs mainly on the
- The drill spindles are provided with standard taper known as
- The operation of producing grooves around the periphery of a cylindrical or conical workpiece is called
- In which of the following machine, the work is usually rotated while the drill is fed into work?
- Lapping is an operation of
- Which of the following statement is wrong as regard to down milling?
- A hole is of dimension φ = 9 ₊0⁺⁰⁰¹⁵ mm. The corresponding…
- Cast iron during machining produces
- The cutting speed for drilling aluminium, brass and bronze with carbon steel drills is _________ cutting…
- Tool signature consists of __________ elements.
- In electro discharge machining, tool is made of
- The operation of making a cone-shaped enlargement of the end of a hole is known as
- In Oxyacetylene gas welding, temperature at the inner cone of the flame is around
- Hard and tough materials like cast iron should be turned at
- Which of the following operation is first performed?
- The tool made of cemented carbide wear out faster at