Machine Design A spring of stiffness 1000 N/m is stretched initially by 100 mm from the undeformed position. The work required to stretch it by another 100 mm is 15 N-m 5 N-m 10 N-m 7 N-m 15 N-m 5 N-m 10 N-m 7 N-m ANSWER DOWNLOAD EXAMIANS APP
Machine Design Tensile strength of a mild steel specimen can be roughly predicted from following hardness test None of these Rockwell Vickers Brinell None of these Rockwell Vickers Brinell ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the material of key and shaft is same, and the width of key is one-fourth of the diameter of shaft (d), then length of key will be 0.8 d 1.57 d 1.8 d 1.2 d 0.8 d 1.57 d 1.8 d 1.2 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design The contact ratio is the ratio of Length of path of contact to the circular pitch Length of arc of recess to the circular pitch Length of arc of approach to the circular pitch Length of arc of contact to the circular pitch Length of path of contact to the circular pitch Length of arc of recess to the circular pitch Length of arc of approach to the circular pitch Length of arc of contact to the circular pitch ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ball bearings are provided with a cage To facilitate slipping of balls To reduce friction To maintain the balls at a fixed distance apart To prevent the lubricant from flowing out To facilitate slipping of balls To reduce friction To maintain the balls at a fixed distance apart To prevent the lubricant from flowing out ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to avoid tearing of the plate at edge, the distance from the center line of the rivet hole to the nearest edge of the plate in terms of dia. of rivet d should be equal to 1 d 1.5 d 1.25 d 1.75 d 1 d 1.5 d 1.25 d 1.75 d ANSWER DOWNLOAD EXAMIANS APP
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