Machine Design Residual stress in materials Becomes zero when external load is removed Acts when external load is applied Is always harmful Is independent of external loads Becomes zero when external load is removed Acts when external load is applied Is always harmful Is independent of external loads ANSWER DOWNLOAD EXAMIANS APP
Machine Design In most machine members, the damping capacity of the material should be Low Zero Could be anything High Low Zero Could be anything High ANSWER DOWNLOAD EXAMIANS APP
Machine Design The velocity factor for precision metallic gears cut with high accuracy and operating at velocities up to 20 m/s is equal to 4.5/ (4.5 + v) 0.75/ (0.75 + √v) 3/ (3 + v) 6/ (6 + v) 4.5/ (4.5 + v) 0.75/ (0.75 + √v) 3/ (3 + v) 6/ (6 + v) ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ratio of the ultimate stress to the design stress is known as Factor of safety Elastic limit Bulk modulus Strain Factor of safety Elastic limit Bulk modulus Strain ANSWER DOWNLOAD EXAMIANS APP
Machine Design For hardening alloy steels and high speed steels, they are heated to 1300 to 1500°C 700 to 900°C 500 to 600°C 1100 to 1300°C 1300 to 1500°C 700 to 900°C 500 to 600°C 1100 to 1300°C ANSWER DOWNLOAD EXAMIANS APP
Machine Design The modulus of elasticity for mild steel is approximately equal to 110 kN/mm² 210 kN/mm² 100 kN/mm² 80 kN/mm² 110 kN/mm² 210 kN/mm² 100 kN/mm² 80 kN/mm² ANSWER DOWNLOAD EXAMIANS APP
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