Which of the following is not a type of federal court?

Federal courts are established to deal with specific types of cases as outlined in the U.S. Constitution and federal statutes. The bankruptcy court, circuit court, and tax court all fall under the umbrella of federal jurisdiction and are specifically created to handle distinct types of legal issues.

A bankruptcy court is a specialized court that deals solely with bankruptcy cases, operating under federal law. The circuit courts, also known as U.S. Courts of Appeals, are federal appellate courts that review decisions made by lower federal courts, including district courts and administrative agencies. The tax court is a specialized court that resolves disputes between taxpayers and the Internal Revenue Service (IRS) regarding federal tax matters.

In contrast, a civil court is generally a term that refers to state courts that handle civil matters, such as personal injury disputes, contract cases, and family law issues, rather than federal matters. Therefore, the term "civil court" does not denote a specific type of federal court, making it the correct answer to the question about which one is not a type of federal court.