Machine Design If a shaft made from ductile material is subjected to combined bending and twisting moment, calculations based on which one of the following failure theories will give the most conservative value? Maximum strain energy theory Maximum distortion energy theory Maximum shear stress theory Maximum principal stress theory Maximum strain energy theory Maximum distortion energy theory Maximum shear stress theory Maximum principal stress theory ANSWER DOWNLOAD EXAMIANS APP
Machine Design The angle of twist of shaft is Inversely proportional to (shaft diameter)² Directly proportional to (shaft diameter)⁴ Inversely proportional to (shaft diameter)⁴ Directly proportional to (shaft diameter)² Inversely proportional to (shaft diameter)² Directly proportional to (shaft diameter)⁴ Inversely proportional to (shaft diameter)⁴ Directly proportional to (shaft diameter)² ANSWER DOWNLOAD EXAMIANS APP
Machine Design The anti-friction bearings All of these Can carry both radial and thrust loads Have low starting and low running friction at moderate speeds Have high initial cost All of these Can carry both radial and thrust loads Have low starting and low running friction at moderate speeds Have high initial cost ANSWER DOWNLOAD EXAMIANS APP
Machine Design If an application calls for stresses on screw threads in one direction only, then the following type of thread would be best suited Buttress BSW Acme Square Buttress BSW Acme Square ANSWER DOWNLOAD EXAMIANS APP
Machine Design The modulus of elasticity for mild steel is approximately equal to 110 kN/mm² 100 kN/mm² 210 kN/mm² 80 kN/mm² 110 kN/mm² 100 kN/mm² 210 kN/mm² 80 kN/mm² ANSWER DOWNLOAD EXAMIANS APP
Machine Design In replacing the V-belts, a complete set of new belts is used instead of replacing a single damaged belt because New and old belts will cause vibrations Belts are available in sets The new belt will carry more than its share and result in short life Only one belt cannot be fitted with other used belts New and old belts will cause vibrations Belts are available in sets The new belt will carry more than its share and result in short life Only one belt cannot be fitted with other used belts ANSWER DOWNLOAD EXAMIANS APP
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