Problem analysis and resolution:
1. The work done by a 7 kW gasoline generator in one hour = 7×3600=25200 (kJ)
2. of gasoline like 46000 kJ/kg; then, the gasoline consumed by the generator for one hour of work is: 25200÷4600≈0.55 (kg)
Answer: A gasoline generator with a total output power of 7 Kilowatts consumes approximately 0.55 fuel per hour.