Conception of taking decisions with regard to reliability and safety of combustion engines

The paper presents one of the simplest decision-taking situations, which occur in time of operating different combustion engines. From the presented possibility of taking decisions, it results, that even in the case of a complex decision-taking situation, consideration of expected consequences makes it possible to assign very easily a proper single number, stating for an expected value of consequences, to each kind of decision. It also enables choosing such an operating decision for which the expected value of consequences is the greatest.