What is the type of welding defect is caused due to stresses on heating and cooling called?
Incomplete penetration
Shrinkage void
Slag Entrapment (Inclusions)
Incomplete fusion
- Lathe bed is made of
- What is the type of joining process called, where the parts to be welded are kept in contact and rotated…
- When the end of a tap is tapered for about three or four threads, it is known as a
- Allowance in limits and fits refers to
- Tool life is generally better when
- Continuous chips with built up edge are formed during machining of
- For turning internal tapers, the suitable method is
- Glazing in grinding wheels __________ cutting capacity.
- The angle made by the face of the tool and the plane parallel to the base of cutting tool is called
- The percentage of carbon in gray cast iron is in the range of
- High speed steel cutting tools operate at cutting speeds _________ than carbon steel tools.
- Two 1 mm thick steel sheets are to be spot welded at a current of 5000 A. Assuming effective resistance…
- A twist drill is specified by its
- Which of the following parameters govern the value of shear angle in continuous chip formation?
- The type of tool used on milling machine and broaching machine is
- Which one of the following is a solid state joining process?
- Which of the following operations can be performed with milling cutters?
- Larger end cutting edge angle _________ tool life.
- Flank wear depends upon the
- In order to obtain a surface finish in the range of 0.75 μm to 1.25 μm , the operation used…
- The chamfering is an essential operation after
- A drill bit of 20 mm diameter rotating at 500 r.p.m. with a feed rate of 0.2 mm/revolution is used to…
- The facing is an operation of
- A feed gear box for a screw cutting lathe is designed on the basis of
- In centreless grinding, work place centre will be
- In metal machining, the work-tool contact zone is a zone where heat is generated due to
- In metal machining, the zone where the heat is generated due to friction between the moving chip and…
- Discontinuous chips are formed during machining of
- The effective number of lattice points in the unit cell of simple cubic, body centred cubic, and face…
- In drilling softer materials, the cutting speed is _________ as compared to harder materials.