Crack in grinding wheel is developed due to
High temperature developed at the contact of the wheel face and work
Grinding hard work
Low speed of wheel
High speed of wheel
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- For fast removal of materials during grinding, a _________ grinding wheel is used.
- In a plain milling cutter, the portion of the gash adjacent to the cutting edge on which the chip impinges…
- In transverse grinding
- Gear lapping is an operation
- In down milling, the thickness of chip is
- Two 1 mm thick steel sheets are to be spot welded at a current of 5000 A. Assuming effective resistance…
- Stellite preserves hardness upto a temperature of
- A coarse grained grinding wheel is used to grind
- The grade of grinding wheel depends upon
- In DC arc welding, if leads are arranged in work as Negative pole of the welding arc and electrode as…
- If the cutting speed is increased, then the built-up-edge
- If a gas metal arc process uses a low arc voltage and the arc is continuously interrupted as the molten…
- The helix angle of a drill is __________ for drilling brass.
- A hole is of dimension φ = 9 ₊0⁺⁰⁰¹⁵ mm. The corresponding…
- A type of welding flows, which is the result of a perfect proportion and mixture of acetylene and oxygen…
- The broaching operation in which the work moves past the stationary tool is called
- Which of the following statement is correct for oblique cutting system?
- A fine grained grinding wheel is used to grind
- What is the type of welding defect caused due to shrinkage during solidification and by weld stresses…
- The thrust force will increase with the increase in
- Cast iron during machining produces
- The common welding error that occurs due to wrong speed, faulty preparation, and high / low current,…
- When the shear angle is large
- The tool made of cemented carbide wear out faster at
- In centreless grinding, the surface speed of regulating wheel is
- A bottoming tap has
- Internal gear cutting operation can be performed by
- Fixtures are used
- The strength of a brazed joint
- Chip breakers are used to