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Humidity Sensor MCQ's

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DHT11 is __________ sensor.
S Humidity Sensor
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Explanation
We can read data from any sensor and analyse it graphically from anywhere in the world. Here, we can read temperature and humidity data from DHT11 sensor and upload it to a Think speak cloud using Arduino Uno.
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What is ESP8266?
S Humidity Sensor
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Explanation
ESP8266 is a WIFI module, which is serial. And also it is small, cheap, and easy to use.
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What is humidity sensor?
S Humidity Sensor
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Explanation
A hygrometer is an instrument used for measuring the water vapor in the atmosphere. Humidity measurement instruments usually rely on measurements of some quantity such as temperature, pressure, mass or a mechanical or electrical change.
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Units for Humidity sensor____________
S Humidity Sensor
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Explanation
Most commonly units for humidity measurement are Relative Humidity(RH), DEW/Fost point (D/F PT) and Parts Per Million(PPM). RH is a function of temperature. DEW/Fost point is a function of the pressure of the as but is independent of temperature and is therefore defined as absolute humidity measurement of temperature. PPM is also an absolute measurement.
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Dew point and Fost point are mainly used in which conditions?
S Humidity Sensor
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Explanation
Dew point and Fost point are often used when the dryness of the gas is important. Dew point is also used as an indicator of water vapor in high temperature processes, such as industrial drying.
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Units for Absolute Humidity is ________
S Humidity Sensor
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Explanation
Absolute Humidity is defined as ratio of mass (vapor) to volume and has units of grams/m3.
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Units for Due point is _______
S Humidity Sensor
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Explanation
Dew point is defined as temperature at which the water vapor in a gas condenses to liquid water and has a units of oC.
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Humidity sensors are divided into how many types and depending on what?
S Humidity Sensor
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Explanation
According to the measurement units, humidity sensors are divided into two types: Relative Humidity(RH), and Absolute Humidity(moisture) sensors. Most humidity sensors are relative humidity sensors and use different sensing principles.
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Electronic type hygrometers are divided into how many types?
S Humidity Sensor
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Explanation
Electronic type hygrometers or humidity sensors can broadly divided into two categories: one employs capacitive sensing principle, while other use resistive effects.
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Relative humidity is a function of ________
S Humidity Sensor
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Explanation
Relative humidity is a function of both ambient temperature and water vapor pressure. Therefore there is a relationship between relative humidity, the amount of moisture present in the sensor, and sensor capacitance. This relation governs the operation of a capacitive humidity instrument.
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