SHEET METAL - Quiz

1) Which cutting fluid used for drilling in cast iron?

Dry air jet Soluble oil Mineral oil Vegetable oil

2) Select the spindle speed (rpm) for H.S.S drill diameter 24 mm and cutting speed (V) = 30 m/min to drill mild steel.

275 rpm 300 rpm 400 rpm 450 rpm

3) Which one is used to bring the plates closely together after inserting the rivet in the hole?

Drift Dolly Rivet set Caulking tool

4) What is the use of bent snips?

Groove cut Zigzag cut Straight cut Circular cut

5) Name the zinc coated iron?

Black iron Tinned iron Stainless steel Galvanised iron