Related Clues:

• Means of determining proficiency
• Scholastic hurdle
• Sound check
• Word after beta or acid
• Litmus ___
• Lab act
• It's often taken in silence
• "Physical" or "oral" follower
• Grade determiner, often
• Medical once-over
• Oral or physical
• Mike holder's opening, often
• It may be a makeup
• __ paper
• Part of 16 Across