Machine Design The gears are termed as medium velocity gears, if their peripheral velocity is 3-15 m/s 30-50 m/s 1-3 m/s 15-30 m/s 3-15 m/s 30-50 m/s 1-3 m/s 15-30 m/s ANSWER DOWNLOAD EXAMIANS APP
Machine Design The bending moment ‘M’ and a torque ‘T’ is applied on a solid circular shaft. If the maximum bending stress equals to maximum shear stress developed, then ‘M’ is equal to 2 T 4 T 1 T T/2 2 T 4 T 1 T T/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing Becomes minimum at an optimum speed and then increases with further increase in speed Remains constant at all speeds Is minimum at zero speed and increases monotonically with increase in speed Is maximum at zero speed and decreases monotonically with increase in speed Becomes minimum at an optimum speed and then increases with further increase in speed Remains constant at all speeds Is minimum at zero speed and increases monotonically with increase in speed Is maximum at zero speed and decreases monotonically with increase in speed ANSWER DOWNLOAD EXAMIANS APP
Machine Design An elastic bar is fixed at the upper end and loaded at the lower end by a falling weight. The shock load produced can be reduced by Decreasing the modulus of elasticity of the bar Increasing the length of bar All of these Decreasing the cross-sectional area of the bar Decreasing the modulus of elasticity of the bar Increasing the length of bar All of these Decreasing the cross-sectional area of the bar ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw is said to be over hauling screw, if the Friction angle is more than helix angle Efficiency of screw is 100% Friction angle is less than helix angle Friction angle is equal to helix angle Friction angle is more than helix angle Efficiency of screw is 100% Friction angle is less than helix angle Friction angle is equal to helix angle ANSWER DOWNLOAD EXAMIANS APP
Machine Design The modulus of elasticity for mild steel is approximately equal to 210 kN/mm² 80 kN/mm² 100 kN/mm² 110 kN/mm² 210 kN/mm² 80 kN/mm² 100 kN/mm² 110 kN/mm² ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS