If the strength of material to be drilled is high, the drill speed should be Low.
6) If the strength of material to be drilled is high, the drill speed should be
Answer is:
Low
Explanation:
Related ISRO Technician-B Fitter Question Paper - 2016 (Set - 2) with Answer Key
Answer is:
700
Explanation:
Spindle Speed is
RPM = (speed)/(circumference)
=(Speed)/(Pi x Diameter)
=44*1000/(3.142 x 20)
=700 RPM
Answer is:
No coolant
Explanation:
Cast iron does not require any coolant because, graphite in the cast iron acts as a lubricant.
Answer is:
Drill diameter
Explanation:
As per the Indian standard (IS) system, a drill bit is designated as 9.5-H-IS5101-HS, in this the number 9.5 stands for drill diameter.