What are the entries to revenues accounts such as Service Revenues usually called?

The answer is Credit, not debit.

Debit: Cash or Accounts Receivable Credit entry: Service Revenue

The answer to this question is definitely CREDIT. Think about a cash sale. Your cash will increase, so you debit cash; therefore, your entry on the revenue side MUST be credit. Revenue is also on the right side of the Accounting equation, where it rolls up into Equity. If you are debiting your revenue account, you're doing it wrong.

I agree with most of the commenters here. The answer should be Credit. As it is, revenue accounts have normal credit balances so they should be recordedas credit entries in the journal.

The entries to revenues accounts such as Service Revenues are usually called debit.

Here, the answer is debit.