366 AGRICULTURAL ENGINEERING 



Testing. A brake test may be made of the engine to 

 determine the amount of power it will deliver and the amount 

 of fuel required per horsepower per hour. In addition to 



Fig. 235. A gasoline engine arranged for a test. The brake is on the 



back side. 



determining the power of the engine, if the test be continued 

 for a time (two hours or longer) an examination may 

 be made of the efficiency of the cooling system and of the 



