Menu
Home / GATE 2017-2018 / GATE Mechanical :: Discussion

Discussion :: GATE Mechanical

  1. In a single pass drilling operation, a through hole of 15 mm diameter is to be drilled in a steel plate of 50 mm thickness. Drill spindle speed is 500 rpm, feed is 0.2 mm/rev and drill point angle is 118°. Assuming 2 mm clearance at approach and exit, the total drill time (in seconds) is
    2. A.
    35.1
    B.
    32.4
    C.
    31.2
    D.
    30.1

    View Answer

    Workspace

    View Answer

    Answer : Option A

    Explanation :

    -NA-

Write your comments here:

Be The First To Comment