1. A 10-truck is driven at a steady speed of 40 km/h on a level...

1. A 10-truck is driven at a steady speed of 40 km/h on a level road, against a tractive
resistance of 200 N/t. The wheels arc 12 m in diameter, the engine runs at 1800 rev/min.
and the transmission efficiency may be taken as 0.85. Calculate the engine power and the
gear ratio in use, engine to wheels.
With the throttle fully open and the engine giving three times this power, at the same
speed, estimate the maximum truck speed in km/h up a 100 slope, and the gear ratio
required. Under these conditions, what is the overall efficiency as a weight-lifting
machine? (Answer. 2615 kW; 10.18: 12.6 km/h: 32.3. 76.1 percent).?

1 Answers Available
Asked by Junior on 25th March, 2024