Possible Clues:

• Viva voce test
• Oriental provides wrong answer in moral exercise putting Chinese to the test
• Puts the French to the test, in a manner of speaking, with probe
• Degree hurdle
• Part of a third degree, maybe
• Hurdle for a grad student
• Certain grilling
• Test taken aloud
• Hurdle for a doctoral student
• Tests the Greek, in a manner of speaking, on paper