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  1. A rope-brake dynamometer attached to the crank shaft of an I.C. engine measures a brake power of 10 kW when the speed of rotation of the shaft is 400 rad/s. The shaft torque (in Nm) sensed by the dynamometer is _____.
    1. 25 N-m
    2. 26 N-m
    3. 35 N-m
    4. 24 N-m
Correct Option: A

P = Tω

∴ T =
P
=
10000
= 25 N-m
ω400



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