Amount of water vapour in the atmosphere is measured in terms of (1) Humidity (2) Droplets (3) Smog (4) All of the above

Amount of water vapour in the atmosphere is measured in terms of (1) Humidity (2) Droplets (3) Smog (4) All of the above
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Humidity
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Amount of water vapour in the atmosphere is measured in terms of – (1) Humidity (2) Droplets (3) Smog (4) All of the above

Description : Amount of water vapour in the atmosphere is measured in terms of – (1) Humidity (2) Droplets (3) Smog (4) All of the above

Last Answer : (1) Humidity Explanation: Humidity is the amount of water vapor in the air. Water vapor is the has phase of water and is invisible. Humidity indicates the likelihood of precipitation, dew, or ... of sweating in cooling the body by reducing the rate of evaporation of moisture from the skin.

Amount of water vapour (gaseous) in a given volume of air (cubic metre) is known as: (1) Mixing ratio (2) Relative humidity (3) Absolute humidity (4) Specific humidity

Description : Amount of water vapour (gaseous) in a given volume of air (cubic metre) is known as: (1) Mixing ratio (2) Relative humidity (3) Absolute humidity (4) Specific humidity

Last Answer : (3) Absolute humidity Explanation: The relative humidity of air at a given temperature is the ratio of mass of water vapour actually present in a certain volume of air to the mass of water vapour required to saturate the same volume of air at the same temperature, multiplied by 100.

Amount of water vapour in a unit volume (Cubic metre) of air is called: (1) Mixed ratio (2) relative humidity (3) absolute humidity (4) specific humidity

Description : Amount of water vapour in a unit volume (Cubic metre) of air is called: (1) Mixed ratio (2) relative humidity (3) absolute humidity (4) specific humidity

Last Answer : (3) absolute humidity Explanation: Absolute humidity is the measure of water vapor (moisture) in the air, regardless of temperature. It is expressed as grams of moisture per cubic meter of air (g/m3).

Amount of water vapour (gaseous) in a given volume of air (cubic metre) is known as: (1) Mixing ratio (2) Relative humidity (3) Absolute humidity (4) Specific humidity

Description : Amount of water vapour (gaseous) in a given volume of air (cubic metre) is known as: (1) Mixing ratio (2) Relative humidity (3) Absolute humidity (4) Specific humidity

Last Answer : Absolute humidity

When dew point la reached it is said that at that temperature (a) the atmosphere is said to be saturated with water vapour (b) the relative humidity of the atmosphere is 100% (c) the atmosphere can hold no more water vapour (d) All the above

Description : When dew point la reached it is said that at that temperature (a) the atmosphere is said to be saturated with water vapour (b) the relative humidity of the atmosphere is 100% (c) the atmosphere can hold no more water vapour (d) All the above

Last Answer : Ans: (a)

Relative humidity is the ratio of actual vapour pressure to the saturation vapour pressure (A) At the same temperature (B) At the same pressure (C) In the same volume (D) In the atmosphere

Description : Relative humidity is the ratio of actual vapour pressure to the saturation vapour pressure (A) At the same temperature (B) At the same pressure (C) In the same volume (D) In the atmosphere

Last Answer : Answer: Option A

Relative humidity is a) the ratio of water vapour in the air compared to the total amount water vapour the air could contain at a given temperature b) equal to the dry bulb temperature divided by the wet bulb temperature c) equal to the wet bulb temperature divided by the dry bulb temperature d) the ratio of the mass of water vapour divided by the mass of dry air e) the ratio of the mass of water vapour divided by the mass of wet air

Description : Relative humidity is a) the ratio of water vapour in the air compared to the total amount water vapour the air could contain at a given temperature b) equal to the dry bulb temperature divided by the wet bulb ... of dry air e) the ratio of the mass of water vapour divided by the mass of wet air

Last Answer : ANSWER : A

When water vapour condenseit form tiny drops of water that forms clouds when do this droplets come down as rain?

Description : When water vapour condenseit form tiny drops of water that forms clouds when do this droplets come down as rain?

Last Answer : Individual droplets are so small, that they can stay suspendedin the air. If the droplets combine into larger drops that are tooheavy to stay suspended, they fall as raindrops.

Water vapour is turned into water droplets by which process?

Description : Water vapour is turned into water droplets by which process?

Last Answer : Condensation

The mass of water vapour per unit volume of air is known as - (1) relative humidity (2) specific humidity (3) absolute humidity (4) variable humidity

Description : The mass of water vapour per unit volume of air is known as - (1) relative humidity (2) specific humidity (3) absolute humidity (4) variable humidity

Last Answer : (3) absolute humidity Explanation: Absolute humidity is the measure of water vapor (moisture) in the air, regardless of temperature. It is expressed as grams of moisture per cubic meter of air (g/m3).

Smog is a combination of – (1) air and water vapour (2) water and smoke (3) fire and water (4) smoke and fog

Description : Smog is a combination of – (1) air and water vapour (2) water and smoke (3) fire and water (4) smoke and fog

Last Answer : (4) smoke and fog Explanation: The term "smog' was first used in London during the early 1900's to describe the combination of smoke and fog. What we typically call "smog" today is a mixture of pollutants but is primarily made up of groundlevel ozone.

Smog is a combination of (1) air and water vapour (2) water and smoke (3) fire and water (4) smoke and fog

Description : Smog is a combination of (1) air and water vapour (2) water and smoke (3) fire and water (4) smoke and fog

Last Answer : smoke and fog

When dry bulb temperature (DBT) and wet bulb temperature (WBT) are measured, greater the difference between DBT and WBT, A. greater the amount of water vapour held in the mixture B. smaller the amount of water vapour held in the mixture C. same the amount of water vapour held in the mixture D. none of the above

Description : When dry bulb temperature (DBT) and wet bulb temperature (WBT) are measured, greater the difference between DBT and WBT, A. greater the amount of water vapour held in the mixture B. smaller the amount of ... the mixture C. same the amount of water vapour held in the mixture D. none of the above

Last Answer : ANSWER : B

The increasing amount of CO2 in the atmosphere is slowly raising its temperature because it absorbs (a) the infrared part of the solar radiation (b) the ultraviolet part of the solar radiation (c) all the solar radiations (d) the water vapour of the air

Description : The increasing amount of CO2 in the atmosphere is slowly raising its temperature because it absorbs (a) the infrared part of the solar radiation (b) the ultraviolet part of the solar radiation (c) all the solar radiations (d) the water vapour of the air

Last Answer : Ans:(a)

The humidity of air measured in percentage is called – (1) absolute humidity (2) specific humidity (3) relative humidity (4) all of these

Description : The humidity of air measured in percentage is called – (1) absolute humidity (2) specific humidity (3) relative humidity (4) all of these

Last Answer : (3) relative humidity Explanation: The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.

How can the quantity of water vapour the atmosphere hold increases?

Description : How can the quantity of water vapour the atmosphere hold increases?

Last Answer : – With increase of temperature

The thickness of ozone in a column of air from the ground to the top of the atmosphere is measured in terms of:

Description : The thickness of ozone in a column of air from the ground to the top of the atmosphere is measured in terms of:

Last Answer : The thickness of ozone in a column of air from the ground to the top of the atmosphere is measured ... . Pascal units C. Svedber units D. Dobson units

The ratio of partial pressure of water vapour in a mixture to the saturation pressure of water at the same temperature of the mixture is called as A. humidity B. partial humidity C. specific humidity D. relative humidity

Description : The ratio of partial pressure of water vapour in a mixture to the saturation pressure of water at the same temperature of the mixture is called as A. humidity B. partial humidity C. specific humidity D. relative humidity

Last Answer : ANSWER : D

What is the specific humidity? A. the ratio of the mass of water vapour to the mass of the total mixture of air and water vapour B. the ratio of the mass of dry air to the mass of the total mixture of air and water vapour C. the ratio of the mass of dry air to the mass of water vapour in a mixture of air and water vapour D. the ratio of the mass of water vapour to the mass of dry air in a mixture of air and water vapour

Description : What is the specific humidity? A. the ratio of the mass of water vapour to the mass of the total mixture of air and water vapour B. the ratio of the mass of dry air to the mass of the total mixture ... ratio of the mass of water vapour to the mass of dry air in a mixture of air and water vapour

Last Answer : ANSWER : D

Which of the following remains constant during evaporative cooling process with recirculated water supply? (A) Relative humidity (B) Partial pressure of vapour (C) Wet bulb temperature (D) None of these

Description : Which of the following remains constant during evaporative cooling process with recirculated water supply? (A) Relative humidity (B) Partial pressure of vapour (C) Wet bulb temperature (D) None of these

Last Answer : (C) Wet bulb temperature

An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively. The humidity of air sample expressed as kg of water vapour/kg of dry air is: (A) 0.048 (B) 0.079 (C) 0.122 (D) 0.152

Description : An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively ... air is: (A) 0.048 (B) 0.079 (C) 0.122 (D) 0.152

Last Answer : (D) 0.152

Which of the following decreases during evaporative cooling process with recirculated water supply? (A) Wet bulb temperature (B) Relative humidity (C) Partial pressure of vapour (D) None of these

Description : Which of the following decreases during evaporative cooling process with recirculated water supply? (A) Wet bulb temperature (B) Relative humidity (C) Partial pressure of vapour (D) None of these

Last Answer : (D) None of these

When an unsaturated air-water mixture is heated at constant pressure, then (A) The partial pressure of water vapour increases (B) The specific humidity decreases (C) The relative humidity increases (D) The relative humidity decreases

Description : When an unsaturated air-water mixture is heated at constant pressure, then (A) The partial pressure of water vapour increases (B) The specific humidity decreases (C) The relative humidity increases (D) The relative humidity decreases

Last Answer : D) The relative humidity decreases

Which of the following increases during evaporative cooling process with recirculated water supply? (A) Wet bulb temperature (B) Relative humidity (C) Partial pressure of vapour (D) Both (B) and (C)

Description : Which of the following increases during evaporative cooling process with recirculated water supply? (A) Wet bulb temperature (B) Relative humidity (C) Partial pressure of vapour (D) Both (B) and (C)

Last Answer : (D) Both (B) and (C)

The actual mass of water vapour present in a given volume of moist air is — a. Relative humidity b. Absolute humidity c. Specific humidity d. All of these

Description : The actual mass of water vapour present in a given volume of moist air is — a. Relative humidity b. Absolute humidity c. Specific humidity d. All of these

Last Answer : b. Absolute humidity

When dry bulb temperature & wet bulb temperature of moist air is the same, it means that the (A) Partial pressure of water vapour is less than the total pressure (B) Humidity is < 100% & dew point temperature of air has not reached (C) Dew point temperature of air has not reached & air is not saturated fully (D) Air is fully saturated

Description : When dry bulb temperature & wet bulb temperature of moist air is the same, it means that the (A) Partial pressure of water vapour is less than the total pressure (B) Humidity is < 100% & dew ... Dew point temperature of air has not reached & air is not saturated fully (D) Air is fully saturated

Last Answer : (D) Air is fully saturated

Oxide of sulphur present in the atmosphere are washed down by rains to cause – (1) Depletion of fossil fuel reserves (2) Eutrophication in lakes (3) Lowering of pH of soil (4) Industrial smog formation

Description : Oxide of sulphur present in the atmosphere are washed down by rains to cause – (1) Depletion of fossil fuel reserves (2) Eutrophication in lakes (3) Lowering of pH of soil (4) Industrial smog formation

Last Answer : (1) Depletion of fossil fuel reserves Explanation: The oxide of Sulphur (Sulphur Dioxide) is washed down on earth as acid rain.

Smog is not formed due to the presence of __________ in the atmosphere. (A) SO2 (B) NOx (C) CO2 (D) Any of these

Description : Smog is not formed due to the presence of __________ in the atmosphere. (A) SO2 (B) NOx (C) CO2 (D) Any of these

Last Answer : (C) CO2

Which of the following factors contribute to formation of photochemical smog? 1. Stable atmosphere 2. NOx 3. Solar insolation 4. CO (a) 1, 2, 3, & 4 (b) 2, 3 & 4 only (c) 1 & 4 only (d) 1, 2 and 3 only

Description : Which of the following factors contribute to formation of photochemical smog? 1. Stable atmosphere 2. NOx 3. Solar insolation 4. CO (a) 1, 2, 3, & 4 (b) 2, 3 & 4 only (c) 1 & 4 only (d) 1, 2 and 3 only

Last Answer : (a) 1, 2, 3, & 4

Oxide of sulphur present in the atmosphere are washed down by rains to cause : (1) Depletion of fossil fuel reserves (2) Eutrophication in lakes (3) Lowering of pH of soil (4) Industrial smog formation

Description : Oxide of sulphur present in the atmosphere are washed down by rains to cause : (1) Depletion of fossil fuel reserves (2) Eutrophication in lakes (3) Lowering of pH of soil (4) Industrial smog formation

Last Answer : Depletion of fossil fuel reserves

Which of the following remains constant during sensible cooling process? (A) Specific humidity (B) Partial pressure of vapour (C) Both (A) and (B)

Description : Which of the following remains constant during sensible cooling process? (A) Specific humidity (B) Partial pressure of vapour (C) Both (A) and (B)

Last Answer : (C) Both (A) and (B)

At a fixed total pressure, humidity depends only on the (A) Partial pressure of vapour in the mixture (B) Heat capacity of the vapour (C) Density of the vapour (D) None of these

Description : At a fixed total pressure, humidity depends only on the (A) Partial pressure of vapour in the mixture (B) Heat capacity of the vapour (C) Density of the vapour (D) None of these

Last Answer : (A) Partial pressure of vapour in the mixture

Relative humidity is the ratio of the (A) Partial pressure of the vapour to the vapour pressure of the liquid at room temperature (B) Partial pressure of the vapour to the vapour pressure of the liquid at gas temperature (C) Actual humidity to saturation humidity (D) None of these

Description : Relative humidity is the ratio of the (A) Partial pressure of the vapour to the vapour pressure of the liquid at room temperature (B) Partial pressure of the vapour to the vapour pressure of the liquid at gas temperature (C) Actual humidity to saturation humidity (D) None of these

Last Answer : (B) Partial pressure of the vapour to the vapour pressure of the liquid at gas temperatur

The temperature to which a vapour gas mixture must be cooled (at varying humidity) to become saturated is called the __________ temperature. (A) Dew point (B) Wet bulb (C) Dry bulb (D) None of these

Description : The temperature to which a vapour gas mixture must be cooled (at varying humidity) to become saturated is called the __________ temperature. (A) Dew point (B) Wet bulb (C) Dry bulb (D) None of these

Last Answer : (D) None of these

At a fixed pressure, the humidity depends upon the partial pressure of vapor in the mixture. Humidity of a vapour free gas is __________ percent. (A) 100 (B) 0 (C) 50 (D) Between 0 and 100

Description : At a fixed pressure, the humidity depends upon the partial pressure of vapor in the mixture. Humidity of a vapour free gas is __________ percent. (A) 100 (B) 0 (C) 50 (D) Between 0 and 100

Last Answer : (B) 0

Pick up the correct statement from the following: (A) Absolute humidity at a given temperature is equal to weight of moisture present in a unit volume (B) Relative humidity is the ratio of actual vapour pressure and saturation vapour pressure at the same temperature (C) Relative humidity is the ratio of the weight of the vapours present per unit volume to the weight of vapours which could be contained at the same temperature when fully saturated (D) All the above

Description : Pick up the correct statement from the following: (A) Absolute humidity at a given temperature is equal to weight of moisture present in a unit volume (B) Relative humidity is the ratio of ... of vapours which could be contained at the same temperature when fully saturated (D) All the above

Last Answer : Answer: Option D

The lysimeter helps in the estimation of (1) Evapotranspiration (2) Relative humidity (3) Vapour pressure (4) Wind direction

Description : The lysimeter helps in the estimation of (1) Evapotranspiration (2) Relative humidity (3) Vapour pressure (4) Wind direction

Last Answer : Evapotranspiration

Two aircrafts, one with a sharp wing profile (S) and the other with a thick profile (T), are flying through the same cloud with the same true airspeed. The cloud consists of small supercooled droplets. Which of the following statements is most correct concerning ice accretion? a. Aircraft T experiences more icing than S b. Aircraft S and T experience the same amount of icing c. Neither of the aircrafts accumulate ice due to the small size of droplets d. Aircraft S experiences more icing than T

Description : Two aircrafts, one with a sharp wing profile (S) and the other with a thick profile (T), are flying  through the same cloud with the same true airspeed. The cloud consists of small  ... aircrafts accumulate ice due to the small size of droplets  d. Aircraft S experiences more icing than T

Last Answer : d. Aircraft S experiences more icing than T

Two aircrafts, one with a sharp wing profile (S) and the other with a thick profile (T), are flying through the same cloud with the same true airspeed. The cloud consists of small supercooled droplets. Which of the following statements is most correct concerning ice accretion? a. Aircraft T experiences more icing than S b. Aircraft S and T experience the same amount of icing c. Neither of the aircrafts accumulate ice due to the small size of droplets d. Aircraft S experiences more icing than T

Description : Two aircrafts, one with a sharp wing profile (S) and the other with a thick profile (T), are flying through the same cloud with the same true airspeed. The cloud consists of small ... aircrafts accumulate ice due to the small size of droplets d. Aircraft S experiences more icing than T

Last Answer : d. Aircraft S experiences more icing than T

Rainbow is due to - (1) absorption of sunlight in minute water droplets (2) diffusion of sunlight through water droplets (3) ionisation of water deposits (4) refraction and reflection of sunlight by water droplets

Description : Rainbow is due to - (1) absorption of sunlight in minute water droplets (2) diffusion of sunlight through water droplets (3) ionisation of water deposits (4) refraction and reflection of sunlight by water droplets

Last Answer : (4) refraction and reflection of sunlight by water droplets

Rain drops fall from great height. Which among the following statements is true regarding it? (1) they fall with that ultimate velocity, which are different for different droplets (2) they fall with same ultimate velocity (3) their velocity increases and they fall with different velocity on the earth (4) their velocity increases and they fall with same velocity on the earth

Description : Rain drops fall from great height. Which among the following statements is true regarding it? (1) they fall with that ultimate velocity, which are different for different droplets (2) they fall with ... velocity on the earth (4) their velocity increases and they fall with same velocity on the earth

Last Answer : (1) they fall with that ultimate velocity, which are different for different droplets Explanation: Any mass is attracted to the Earth by the pull of gravity. Gravity accelerates all objects ... specifically the cross-sectional area presented to the airflow (perpendicular to the direction of travel).

Rain drops fall from great height. Which among the following statements is true regarding it? (1) they fall with that ultimate velocity, which are different for different droplets (2) they fall with same ultimate velocity (3) their velocity increases and they fall with different velocity on the earth (4) their velocity increases and they fall with same velocity on the earth

Description : Rain drops fall from great height. Which among the following statements is true regarding it? (1) they fall with that ultimate velocity, which are different for different droplets (2) they fall ... velocity on the earth (4) their velocity increases and they fall with same velocity on the earthphys

Last Answer : they fall with that ultimate velocity, which are different for different droplets

1. Which is the oldest Development Financial Institution of India? 2. What is a powerful eye irritant present in smog? 3. Where is respiratory centre situated? 4. Which part of the Earth’s surface receives the highest amount of insolation? 5. Which are manuals of instruction in the form of brief rules?

Description : 1. Which is the oldest Development Financial Institution of India? 2. What is a powerful eye irritant present in smog? 3. Where is respiratory centre situated? 4. Which part of the Earth's ... famous for its deposits of nitrates? 20. Which queen enjoyed political power along with her husband?

Last Answer : Answer : 1. IFCI 2. Sulphur dioxide 3. Medulla oblongata 4. Tropical deserts 5. Sutras 6. Home Minister 7. Srinivas Ramanujan 8. Economics 9. Condensation 10. Tanjore 11. Less than unity 12. ... Cholas and Rashtrakutas 16. Export-Import Banks 17. Jimmy Carter 18. Acetylene 19. Atacama 20. Nur Jahan

The instrument used in measured of humidity in air

Description : The instrument used in measured of humidity in air

Last Answer : Hygrograph

Relative humidity (RH) is measured by

Description : Relative humidity (RH) is measured by

Last Answer : Ans. Hygrometer/Psychrometer

Dry-bulb temperature is: a. The absolute temperature corresponding to the atmospheric pressure b. The same as the wet-bulb temperature if the relative humidity is less than 100% c. Not required to find the relative humidity d. The temperature of the air measured with an ordinary thermometer e. The dew point temperature

Description : Dry-bulb temperature is: a. The absolute temperature corresponding to the atmospheric pressure b. The same as the wet-bulb temperature if the relative humidity is less than 100% c. Not required ... d. The temperature of the air measured with an ordinary thermometer e. The dew point temperature

Last Answer : Answer: D

The humidity of air measured in percentage is called – (1) absolute humidity (2) specific humidity (3) relative humidity (4) all of these

Description : The humidity of air measured in percentage is called – (1) absolute humidity (2) specific humidity (3) relative humidity (4) all of these

Last Answer : (3) relative humidity Explanation: The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.

Humidity is measured by –

Description : Humidity is measured by –

Last Answer : Hygrometer

Humidity is measured by (1) Lactometer (2) Polarimeter (3) Thermometer (4) Hygrometer

Description : Humidity is measured by (1) Lactometer (2) Polarimeter (3) Thermometer (4) Hygrometer

Last Answer : Hygrometer