Subtopic: Type, selection, maintenance and repair of tractors and power tillers
Question Statement:
The torque available at maximum power developed by the tractor is 150 N m. If the reserve torque is 20%, the peak torque that can be developed by the tractor in N m is
Options:
(A) 100
(B) 120
(C) 180
(D) 210
Official Answer Key:
C
Step-by-Step Solution & Explanation
Reserve torque is defined as the percentage by which peak (maximum) torque exceeds the torque at rated/maximum power: Reserve torque (%) = (Peak torque − Torque at max power)/(Torque at max power) ×100. Given 20%: Peak torque = Torque at max power × (1+0.20) = 150×1.20 = 180 N·m. Answer: (C).
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