Final answer:
The maximum civil penalty for a single cause of license suspension, revocation or denial can vary depending on the licensing authority and nature of the violation.
Step-by-step explanation:
The maximum civil penalty that can be imposed for a single cause of license suspension, revocation or denial varies depending on the specific licensing authority and the nature of the violation. There is no universal answer to this question, as penalties can differ significantly from one jurisdiction to another.
However, as an example, in the United States, the Federal Aviation Administration (FAA) has the authority to suspend, revoke, or deny a pilot's license. The maximum civil penalty for a single cause of license suspension, revocation, or denial under the FAA regulations can be up to $25,000.
It is important to note that these penalties are subject to change and should be verified with the relevant licensing authority.