81. Rankine's theory of failure is applicable for following type of materials
82. The velocity factor for very accurately cut and ground metallic gears operating at velocities upto __________ are equal to $$\frac{6}{{6 + {\text{v}}}}$$ .
83. Lewis equation is applied
84. In a hydrodynamic lubricated bearing
85. Idler pulley is used for
86. If p = bearing pressure on projected bearing area, Z = absolute viscosity of lubricant and N = speed of journal, then the bearing characteristic number is given by
87. The suitable material for belt in agricultural machinery is
88. Which process will increase the fatigue duration of parts?
89. Coaxing is the procedure of increasing
90. In a flange coupling, the keys are staggered at __________ along the circumference of the shafts in order to divide the weakening effect caused by key ways.
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