True or false: It is acceptable for airline crew to serve alcohol from outside sources.

The assertion that it is not acceptable for airline crew to serve alcohol from outside sources is accurate. Airlines have strict policies regarding the service of alcoholic beverages to ensure passenger safety and compliance with regulatory standards. Typically, airline regulations require that all alcohol served in-flight must be purchased from the airline and must adhere to specific rules about distribution and consumption. This serves to maintain control over the serving environment and prevent any potential issues that could arise from unregulated alcohol consumption.

Allowing crew members to serve alcohol from outside sources could lead to a host of safety concerns, including the potential for over-serving passengers or the introduction of unregulated substances that the airline cannot monitor. For these reasons, the prohibition against serving outside alcohol is firmly established within airline operational protocols.