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For the following questions answer them individually
The corrosion resistance property of stainless steel is due to the presence of
manganese
chromium
cobalt
silicon
............ is a copper free alloy.
German silver
Muntz metal
White metal
Gun metal
Babbit metal is alloy of
Cu and Zn
Sn and Cu
Sn, Cu and Sb
Sn, Cu, Sb and Pb
Greyiron is usually welded by
arc welding
gas welding
TIG welding
MIG welding
Arc blow is a welding defect which is encountered
in arc welding using AC current
in arc welding using DC current
in gas welding
in thermit welding
The main function of cutting fluid is
to provide lubrication
to cool the tool and the workpiece
to provide lubrication and wash awaythe chips
All of these
A transfer machine
is an automatic machine which performs the job of transferring the workpiece from the feed station to the output station
is an automatic machine which transfers the workpiece and the fixture from one station to another and at the same time several operations are performed on it
is device for transfer of mechanical motions through numerically controlled techniques
is the coordinating machine between the job table and the work controlling it automatically
The cutting speed is equal to (Where, D = diameter of job in mm N = Spindle or job speed in rpm)
$$\frac{\pi DN}{1000}$$
$$\frac{2 \pi DN}{1000}$$
$$\frac{\pi DN}{75}$$
$$\frac{\pi DN}{4500}$$
When the file is pushed and pulled across the work,it is called:
draw filing
straight filing
push pull filing
All options are correct
Why are jigs and fixtures used?
To increase productivity and allow rest time to operator
To facilitate interchangeability, increasing productivity and accuracy
To reduce cost of manufacture
To remove the chips
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