less than

equal to

more than

none of these

45 Degree

60 Degree

70 Degree

80 Degree

(0.124 -(0.684/T))

(0.154 -(0.912/T))

(0.175 -(0.841/T))

none of these

reducing

increasing

remains same

none of these

varies linearly

is uniform throughout

varies exponentially, being more near the torque-input end

varies exponentially, being less near the torque-input end