Question:
The following results were obtained during Morse test on 4-stroke petrol engine. Brake power developed when all cylinders working = 16.2 kW
Brake power developed when 1 st cylinder cutoff = 11.5 kW
Brake power developed when 2 nd cylinder cutoff = 11.6 kW
Brake power developed when 3 rd cylinder cutoff = 11.68 kW
Brake power developed when 4 th cylinder cutoff = 11.57 kW
Calculate mechanical efficiency and friction power.
Answer:
