Referring to exams in which external resources such as glossaries, study notes, calculators, etc may be used(adjective)
Attributive form of open book(adjective)
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Use "open-book" in a sentence
"There is an open-book, online exam, says Edwin Morrow, chairman of the IARFC."
"I already have written about a couple of home contractors and remodeling companies this year, but Sun had me when they started talking about "employee huddles" and "open-book" management."
"And the savings can go (as taxes) though open-book self-governance accounts into funding broadcasting -- and going that route the public can follow the money, like Jack reports City of Portland waste fraud and bribery corruption."