Mining Engineering > GATE 2023 > Rock Mechanics
A punch hole of diameter 10 mm is to be made in a 5 mm thick rock plate as shown. If the yield strength of rock plate is 25 MPa, the punch force P required in kN is _________. [rounded off to 1 decimal place]

Correct : 9.8

Similar Questions

A Mohr-Coulomb envelop between shear stress, t and normal stress, σn of a sandstone rock is given as τ=7.5+0.84 σn ( unit of stresses is MPa ) A...
#44 Fill in the Blanks
A circular tunnel is constructed at a depth of 100 m. The average unit weight of overburden rock is 27.0 kN/m3. If the tangential stress measured at point A loc...
#45 Fill in the Blanks
A shear stress t acts tangentially to the upper surface of a block and causes a small deformation Δw as shown. The shear strain is calculated by
#68 MCQ

Related Topics

punch hole in rock plate mining engineering GATE 2023 rock plate yield strength punch force calculation GATE mining engineering mining engineering problems punching force rock plate GATE 2023 question 31

Unique Visitor Count

Total Unique Visitors

Loading......

Question Options

Contributed by: