Final answer:
Crane operators at naval activities are indeed required to operate different types of cranes for which they possess a license. This ensures they are properly trained and can execute safety procedures to prevent incidents.
Step-by-step explanation:
The statement in the question is true. In most countries, crane operators at naval activities may be required to operate various types of cranes for which they hold a license. This is a standard practice in professions associated with heavy machinery like cranes. The purpose of licensure is to verify that an operator is adequately trained and is aware of safety procedures to prevent accidents and incidents in the naval operations environment.
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