Machine Design
Three different weights fall from a certain height under vacuum. They will take

Times inversely proportional to weight to reach earth
Times proportional to weight to reach earth
None of these
Same time to reach earth

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
According to I.B.R., when the thickness of the boiler shell (t) is less than 8 mm, then the diameter of the rivet hole (d) is obtained by

Equating tearing resistance of the plate to the shearing resistance of the rivets
Equating tearing resistance of the plate to the crushing resistance of the rivets
Equating shearing resistance to the crushing resistance of the rivets
None of these

ANSWER DOWNLOAD EXAMIANS APP