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Hygrometer: Measuring Relative Humidity

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Questions and Answers

Which of the following describes the function of a resistive hygrometer?

It measures humidity by detecting changes in the capacitance of a dielectric material.

It measures humidity by detecting changes in the color of a hygroscopic material.

It measures humidity by detecting changes in the pressure of a gas-filled chamber.

It measures humidity by detecting changes in the resistance of certain salts and polymers. (correct)

According to the animation, what is the initial relative humidity (RH) value shown?

50%

75%

5% (correct)

100%

Which of the following statements is true about capacitive hygrometers compared to resistive hygrometers?

Capacitive hygrometers and resistive hygrometers have the same sensitivity.

Capacitive hygrometers are more sensitive than resistive hygrometers. (correct)

The sensitivity of capacitive hygrometers and resistive hygrometers cannot be compared.

Capacitive hygrometers are less sensitive than resistive hygrometers.

Which of the following applications of hygrometers is NOT mentioned in the text?

Weather forecasting Signup and view all the answers

What is the purpose of showing the pictures of a farm, food processing plant, and a forest wildfire in the animation?

To demonstrate the importance of relative humidity in various processes. Signup and view all the answers

Which of the following statements is true about the color change in a hygrometer material?

The color becomes darker as the relative humidity increases. Signup and view all the answers

Which of the following characteristics of hygrometers is NOT mentioned in the text?

Low cost Signup and view all the answers

Why is it beneficial to know how hygrometers work?

To control relative humidity in various processes where it is essential. Signup and view all the answers

Based on the information provided, which of the following statements is true about fires in areas of high relative humidity?

They are easier to put out compared to fires in areas of low relative humidity. Signup and view all the answers

Which of the following statements best describes the purpose of the animation in the context of the text?

To illustrate the color change of the hygrometer material with varying relative humidity. Signup and view all the answers