Which of the following instruments use a battery operated fan to draw air over the thermometer bulbs?
a) hydrometer
b) aspirating psychrometer
c) sling psychrometer
d) dry psychrometer
e) potentiometer
Answer: B
Which of the following instruments use a battery operated fan to draw air over the thermometer bulbs?
a) hydrometer
b) aspirating psychrometer
c) sling psychrometer
d) dry psychrometer
e) potentiometer
Answer: B