Subtopic: Measurement of force, stress, torque, speed, displacement and acceleration on machine elements – shafts, couplings, keys, bearings and knuckle joints
Question Statement:
To measure tractor drive wheel slip accurately in the field, true forward speed is measured using:
Options:
(A) Radar or GNSS speed sensors / Fifth-wheel encoder
(B) Engine tachometer
(C) Tractor odometer
(D) Exhaust gas flow rate
Answer Key:
A
Step-by-Step Solution & Explanation
Radar/Doppler sensors or fifth-wheel encoders measure true ground speed without tire deflection or wheel sinkage errors.