A flat footstep bearing 10 cm radius supports a load of 3 kN. The shaf – McqOptions

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1.	A flat footstep bearing 10 cm radius supports a load of 3 kN. The shaft runs at 600/π r.p.m. and co-efficient of friction is 0.1. The friction torque and frictional power in watts with uniform wear are respectively.
A.	30 n-m and 600 watt
B.	15 n-m and 300 watts
C.	15 n-m and 600 watts
D.	not possible to find for insufficient data
Answer» C. 15 n-m and 600 watts

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