Dry bulb temperature can be expressed in which units?

Dry bulb temperature can be expressed in which units?

• A. Fahrenheit and Celsius
• B. Kelvin
• C. Rankine
• D. Newton

Answer: (A)

Dry-bulb temperature is simply the air temperature as read by a standard thermometer, so it can be expressed on any temperature scale. In typical HVAC and psychrometric practice, the two most common units are Fahrenheit and Celsius, which is why those are the standard expressions you’ll see on charts and in calculations. Kelvin and Rankine are valid absolute scales, but they aren’t the standard units used in this context, and Newton isn’t a conventional temperature unit in modern engineering. Therefore, the best-match answer is Fahrenheit or Celsius.

Dry-bulb temperature is simply the air temperature as read by a standard thermometer, so it can be expressed on any temperature scale. In typical HVAC and psychrometric practice, the two most common units are Fahrenheit and Celsius, which is why those are the standard expressions you’ll see on charts and in calculations. Kelvin and Rankine are valid absolute scales, but they aren’t the standard units used in this context, and Newton isn’t a conventional temperature unit in modern engineering. Therefore, the best-match answer is Fahrenheit or Celsius.