Machine Design When the screw in a mechanical screw jack rotates, the load kept on the top of it moves Axially upwards None of these Axially upwards or downwards Axially downwards Axially upwards None of these Axially upwards or downwards Axially downwards ANSWER DOWNLOAD EXAMIANS APP
Machine Design A self locking screw has Coefficient of friction is greater than tangent of load angle Hole for inserting split pin Course threads Fine threads Coefficient of friction is greater than tangent of load angle Hole for inserting split pin Course threads Fine threads ANSWER DOWNLOAD EXAMIANS APP
Machine Design For hardening alloy steels and high speed steels, they are heated to 1300 to 1500°C 500 to 600°C 1100 to 1300°C 700 to 900°C 1300 to 1500°C 500 to 600°C 1100 to 1300°C 700 to 900°C ANSWER DOWNLOAD EXAMIANS APP
Machine Design The radial distance from the __________ to the clearance circle is called working depth. None of these Dedendum circle Pitch circle Addendum circle None of these Dedendum circle Pitch circle Addendum circle ANSWER DOWNLOAD EXAMIANS APP
Machine Design In oilness bearings Grease required to be applied after some intervals Do not require external supply of lubricant The oil film is maintained by supplying oil under pressure The oil film pressure is generated only by the rotation of the journal Grease required to be applied after some intervals Do not require external supply of lubricant 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 A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be 3.5 3 2.5 2.8 3.5 3 2.5 2.8 ANSWER DOWNLOAD EXAMIANS APP
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