Description : Given statement is true or false Statement: Actual site of diffusion of `O_(2) and CO_(2)` between blood and atmospheric air is exchange part.
Last Answer : Given statement is true or false Statement: Actual site of diffusion of `O_(2) and CO_(2)` between blood and atmospheric air is exchange part.
Description : Increase in atmospheric temperature due to `CO_(2)` is called :
Last Answer : Increase in atmospheric temperature due to `CO_(2)` is called : A. Pasteur effect B. Blackman effect C. Emersion effect D. Green-house effect
Description : Checking of radiating heat by atmospheric dust, water vapour, ozone, `CO_(2)` etc., is known as:
Last Answer : Checking of radiating heat by atmospheric dust, water vapour, ozone, `CO_(2)` etc., is known as ... effect C. Green house effect D. Solar effect.
Last Answer : Checking of radiating heat by atmospheric dust, water vapour, ozone, `CO_(2)` etc., is known ... effect C. Radioactive effect D. Green house effect.
Description : Level of atmospheric `CO_(2)` has increased in 2000 from
Last Answer : Level of atmospheric `CO_(2)` has increased in 2000 from A. 280 ppm to 360 ppm B. 250 ppm to 300 ppm C. 300 ppm to 340 ppm D. 330 ppm to 350 ppm
Description : Photosynthesis in `C_(4)` plants is relatively less limited by atmospheric `CO_(2)` levels because
Last Answer : Photosynthesis in `C_(4)` plants is relatively less limited by atmospheric `CO_(2)` levels because A. ... 4)` plants has higher affinity for `CO_(2)`
Description : If carbon monoxide content in atmospheric air exceeds __________ ppm, death is bound to occur. (A) 50 (B) 500 (C) 1000 (D) 3000 (i.e. 0.3%
Last Answer : (D) 3000 (i.e. 0.3%
Description : `CO_(2)` content of atmosphere has increased in the last 150 years from
Last Answer : `CO_(2)` content of atmosphere has increased in the last 150 years from A. 200 ppm to 300 ppm B. 350 ... . 280 ppm to 370 ppm D. 120 ppm to 280 ppm
Description : In the `CO_(2)` content of the atmosphere is as high as 300 parts per million
Last Answer : In the `CO_(2)` content of the atmosphere is as high as 300 parts per million A. All plants ... time and then die D. The plants would thrive well.
Description : Standard air is the: a. Mass of 1 cubic meter of dry air at 20°C and atmospheric pressure b. Mass of a cubic meter of air at atmospheric conditions c. Volume of air at ambient temperature and atmospheric pressure ... pressure at sea level or 101.325 kPa e. Volume of 1 kg of air at 15°C and 100 kPa
Last Answer : Answer: D
Description : Acute danger to human life (i.e. death) exists, if the concentration of CO2 in atmospheric air exceeds __________ percent (by volume). (A) 1 (B) 3 (C) 7 (D) 20
Last Answer : (D) 20
Description : Percentage of argon (by volume) in dry atmospheric air is about (A) 0.09 (B) 0.3 (C) 0.57 (D) 0.94
Last Answer : D) 0.94
Description : While swimming at depth of120m in a fresh water lake, A fish emits an air bubbles of volume 2.0mm³ atmospheric pressure is 100kPa. What is the pressure of the bubble? a) 217.7 kPa b) 317.7 kPa c) 417.7 kPa d) 517.7 kPa Formula: P= δh
Last Answer : 217.7 kPa
Description : While swimming a depth of 13m in a fresh water lake a fish emits an air bubble of volume 2 mm² atmospheric pressure is 100kpa what is the original pressure of the bubble. a. 217.17 kpa b. 119 kpa c. 326.15 kpa d. 210 kap Pabs = Pg + Patm
Last Answer : 217.17 kpa
Description : The volume of `CO_(2)` at STP obtained by heating 1 g of `CaCO_(3)` will be
Last Answer : The volume of `CO_(2)` at STP obtained by heating 1 g of `CaCO_(3)` will be A. 1 L B. `22.4 L` C. `0.224 L` D. `11.2 L`
Description : Volume at NTP of 0.22 g of `CO_(2)` is same as that of
Last Answer : Volume at NTP of 0.22 g of `CO_(2)` is same as that of A. 0.01 g of hydrogen B. 0.085 g of hydrogen C. 320 mg of gaseous `SO_(2)` D. All of the above.
Description : The volume occupied by 4.4 gram of `CO_(2)` at STP is :-
Last Answer : The volume occupied by 4.4 gram of `CO_(2)` at STP is :- A. 22.4 L B. 2.24 L C. 0.224 L D. 0.1 L
Description : The ratio of the volume of `CO_(2)` evolved to the volume of `O_(2)` consumed in respiration is called.
Last Answer : The ratio of the volume of `CO_(2)` evolved to the volume of `O_(2)` consumed in respiration is called.
Description : 0.6 g of carbon was burnt in the air to form `CO_(2)`. The number of molecules of `CO_(2)` introduced into the will be : `C+O_(2)toCO_(2)`
Last Answer : 0.6 g of carbon was burnt in the air to form `CO_(2)`. The number of molecules of `CO_(2)` introduced into ... C. `6.02xx10^(22)` D. `3.01xx10^(22)`
Description : In human beings, `CO_(2)` concentration in the imspired and expired air is respectively
Last Answer : In human beings, `CO_(2)` concentration in the imspired and expired air is respectively A. 0.03% and 5.3% B. 0 ... C. 0.04% and 3.0% D. 0.03% and 4.0%
Description : In the atmospheric pressure crude distillation, the content of __________ from lighter fraction to heavier ones. (A) Sulphur increases (B) Sulphur decreases (C) Nitrogen decreases (D) None of these
Last Answer : (A) Sulphur increases
Description : A coal gasifier operating at 20 atm. (e.g. Lurgi gasifier) as compared to one operating at atmospheric pressure (e.g. Kopper-Totzek or Winkler gasifier) will produce a gas having (A) Higher ... calorific value (B) Higher carbon monoxide content (C) Lower carbon dioxide content (D) None of these
Last Answer : (A) Higher methane content and thus higher calorific value
Description : The ratio of volume of voids to the total volume of soil mass is called (A) Air content (B) Porosity (C) Percentage air voids (D) Voids ratio
Last Answer : (B) Porosity
Description : The water content of soil is defined as the ratio of (A) Volume of water to volume of given soil (B) Volume of water to volume of voids in soil (C) Weight of water to weight of air in voids (D) Weight of water to weight of solids of given mass of soil
Last Answer : Answer: Option D
Description : The ratio of volume of air voids to the volume of total voids, is known as (A) Air content (B) Percentage air voids (C) Percentage voids (D) Porosity
Last Answer : Answer: Option A
Description : Humidity refers to (A) Temperature of the air (B) Pressure of the air (C) Moisture content of the air (D) Volume of the air
Last Answer : Answer: Option C
Description : The ratio of volume of air voids to the volume of voids is known as a) Percentage of air voids b) Porosity c) Degree of saturation d) Air content*
Last Answer : d) Air content*
Description : With suction pressure being atmospheric, increase in delivery pressure with fixed clearance volume A. increase volumetric efficiency B. decrease volumetric efficiency C. does not change volumetric efficiency D. First increase volumetric efficiency and then decrease it
Last Answer : ANSWER : B
Description : The boiling point of water depends upon the – (1) atmospheric pressure (2) volume (3) density (4) mass
Last Answer : (1) atmospheric pressure Explanation: The boiling point corresponds of water to the ternperature at which its vapour pressure equals the surrounding environmental pressure. So it is dependent on ... pressure decreases. As this pressure decreases, the boiling point of the water also decreases.
Description : In ammonia synthesis (N2 + 3H2 = 2NH3 ), there is a decrease in total volume, hence to get high equilibrium conversion, the reaction should becarried out at (A) Low pressure (B) High pressure (C) Very high temperature (D) Atmospheric pressure; as the pressure has no effect on conversion
Last Answer : (B) High pressure
Description : The volume of a gas under standard atmospheric pressure & 76 cmHg is 200m³. What is the volume when pressure is 80 cmHg if the temperature is unchanged? a) 180 in³ b) 170 in³ c) 160 in³ d) 190 in³ Formula: P2V2 = P1V1
Last Answer : 190 in³
Description : A gas at 0 degrees C and at normal atmospheric pressure has a volume of 273 cubic centimeters. If it is held at constant pressure until its volume is doubled, its temperature will be which one of the ... it be w) 2 degrees Celsius x) 200 degrees Celsius y) 273 degrees Celsius z) 546 degrees Celsius
Last Answer : ANSWER: Y -- 273 DEGREES CELSIUS
Description : An eudiometer measures (1) Atmospheric pressure (2) Time (3) Volume of gases (4) Vapour pressure
Last Answer : Volume of gases
Description : The boiling point of water depends upon the (1) atmospheric pressure (2) volume (3) density (4) mass
Last Answer : atmospheric pressure
Description : Why does atmospheric pressure decrease when the amount of water vapor in the air increases ?
Last Answer : As water vapor is lighter than air, the pressure in the atmosphere decreases as the amount of water vapor in the air increases. During cooking, water vapor is seen rising upwards. This indicates that ... of air decreases. So as the amount of water vapor in the air increases, the pressure decreases.
Description : What will be the `pO_(2)" and "pCO_(2)` in the atmospheric air compared to those in the alveolar air?
Last Answer : What will be the `pO_(2)" and "pCO_(2)` in the atmospheric air compared to those in the alveolar air? ... `P_(CO_(2))` lesserion, `P_(CO_(2))` lesser
Description : Partial pressur eof oxygen in alveoli , atmospheric air and tissue will be
Last Answer : Partial pressur eof oxygen in alveoli , atmospheric air and tissue will be A. 40,159,45 B. 40,0.3,45 C. 104,159,40 D. 104,0.3,45
Description : Partial pressure of carbon dioxide in Alveoli , atmospheric air and tissures will be `:-`
Last Answer : Partial pressure of carbon dioxide in Alveoli , atmospheric air and tissures will be `:-` A. 0.3,40,45 B. 40,0.3,45 C. 0.3,104,28 D. 104,159,40
Description : Breathing invovles two stages (a)___ during which atmospheric air is drawn in and (b)_____ by which the alveolar air is released out.
Last Answer : Breathing invovles two stages (a)___ during which atmospheric air is drawn in and (b)_____ by which the alveolar air is released out.
Description : How does warm air mass pushing into region of air affect the atmospheric pressure?
Last Answer : What is the answer ?
Description : How do the Central Asian highlands affect the Indian climate? (a) The low pressure in these areas intensifies the cold during the winter (b) The atmospheric pressure in this region has an effect on ... (d) The atmospheric pressure in this region has an impact on the onset of monsoon in India
Last Answer : Ans: (d)
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
Description : Dew point can be best defined as the: a. Absolute temperature at which air, upon heating, will evaporate moisture b. . Percentage of moisture that air can hold at a given temperature ... to condense should the temperature drop further e. . Atmospheric pressure at which air will condense moisture
Description : Which one of the following methods can be adopted to obtain isothermal compression in an air compressor? A. Increasing the weight of the compressor B. Inter-stage heating C. Atmospheric cooling D. Providing appropriate dimensions to the cylinder
Last Answer : ANSWER : A
Description : Inside an aeroplane flying at a high altitude, (a) the pressure is the same as that outside (b) normal atmospheric pressure is maintained by the use of air pumps (c) the pressure inside is less than the pressure outside (d) normal humidity and partial vacuum are maintained
Last Answer : Ans:(b)
Description : A hydrogen filled balloon rises in air because (a) The atmospheric pressure decreases with altitude (b) The acceleration due to gravity decreases with altitude (c) The density of air decreases with ... The buoyant force exerted by the air on the balloon is greater than the weight of the balloon
Last Answer : Ans:(d)
Description : The most abundant constituent of atmospheric air is – (1) carbon (2) hydrogen (3) oxygen (4) nitrogen
Last Answer : (4) nitrogen Explanation: Air is the name given to the atmosphere used in breathing and photosynthesis. Dry air contains roughly (by volume) 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases.