Machine Design When the screw in a mechanical screw jack rotates, the load kept on the top of it moves None of these Axially upwards Axially upwards or downwards Axially downwards None of these Axially upwards Axially upwards or downwards Axially downwards ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw is said to be a self locking screw, if its efficiency is Less than 50% None of these More than 50% Equal to 50% Less than 50% None of these More than 50% Equal to 50% ANSWER DOWNLOAD EXAMIANS APP
Machine Design Pitch point of a cam is A point on the pitch curve having maximum pressure angle A point on the pitch curve having minimum pressure angle Any point on the pitch circle Any point on the pitch curve A point on the pitch curve having maximum pressure angle A point on the pitch curve having minimum pressure angle Any point on the pitch circle Any point on the pitch curve 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 2.8 3.0 2.5 3.5 2.8 3.0 2.5 3.5 ANSWER DOWNLOAD EXAMIANS APP
Machine Design When two non-parallel or intersecting but coplanar shafts are connected by gears, the arrangement is known as, Bevel gearing Helical gearing None of these Worm gearing Bevel gearing Helical gearing None of these Worm gearing ANSWER DOWNLOAD EXAMIANS APP
Machine Design Rankine's theory is used for Elastic materials Ductile materials Brittle materials Plastic materials Elastic materials Ductile materials Brittle materials Plastic materials ANSWER DOWNLOAD EXAMIANS APP
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