Answer to Question 1
ANS: B
The bell of the stethoscope is best for soft, low-pitched sounds such as extra heart sounds or murmurs. The diaphragm of the stethoscope is best used for high-pitched sounds such as breath, bowel, and normal heart sounds.
Answer to Question 2
ANS: B
A musical or drumlike sound (tympany) is heard when percussion occurs over an air-filled viscus, such as the stomach or intestines.