Machine Design A thin spherical shell of internal diameter d is subjected to an internal pressure p. If σt is the tensile stress for the shell material, then thickness of shell is equal to pd/4σt pd/σt pd/3σt pd/2σt pd/4σt pd/σt pd/3σt pd/2σt ANSWER DOWNLOAD EXAMIANS APP
Machine Design Euler’s formula for a mild steel column is not valid if the slenderness ratio is 90 100 60 120 90 100 60 120 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The cam follower extensively used in aircraft engines is Roller follower Knife edge follower Spherical faced follower Flat faced follower Roller follower Knife edge follower Spherical faced follower Flat faced follower ANSWER DOWNLOAD EXAMIANS APP
Machine Design In oilness bearings Do not require external supply of lubricant Grease required to be applied after some intervals The oil film is maintained by supplying oil under pressure The oil film pressure is generated only by the rotation of the journal Do not require external supply of lubricant Grease required to be applied after some intervals The oil film is maintained by supplying oil under pressure The oil film pressure is generated only by the rotation of the journal ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to ensure self locking in a screw jack, it is essential that helix angle is __________ friction angle. Larger than None of these Equal to Smaller than Larger than None of these Equal to Smaller than 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 1.75 d 1 d 1.25 d 1.5 d 1.75 d 1 d 1.25 d 1.5 d ANSWER DOWNLOAD EXAMIANS APP
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