railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Fitter Machining Drilling and Reaming
Find out the time required for drilling 5 holes in a 20 mm thick plate, where diameter of drill 10 mm and cutting speed 1.5 meter/min and feed is 0.05 mm
1
42 min
2
40 min
3
32 min
4
30 min