Description : The capacity of the atmosphere to hold water vapour (a) Increases as the temperature increases (b) Decreases as the temperature increases (c) Increases as the temperature decreases (d) Decreases as the temperature decreases
Last Answer : Ans: (a)
Description : How can the quantity of water vapour the atmosphere hold increases? -Do You Know?
Last Answer : answer:
Description : How can the quantity of water vapour the atmosphere hold increases?
Last Answer : – With increase of temperature
Last Answer : With increase of temperature
Description : What happens to atmospheric pressure with increase in altitude? (1) It remains constant (2) It decreases (3) It increases (4) It constantly fluctuates
Last Answer : (2) It decreases Explanation: In most circumstances atmospheric pressure is closely approximated by the hydrostatic pressure caused by the mass of air above the measurement point. Low- ... increases, there is less overlying atmospheric mass, so that pressure decreases with increasing elevation.
Description : What happens to atmospheric pressure with increase in altitude ? (1) It remains constant (2) It decreases (3) It increases (4) It constantly fluctuates
Last Answer : It decreases
Description : If the temperature of a piece increases suddenly, the relative humidity– (1) increases (2) decreases (3) remains constant (4) fluctuates
Last Answer : (2) decreases Explanation: Relative humidity is the ratio of the partial pressure of water vapour in a airwater mixture to the saturated vapour pressure of water at a specific temperature.
Description : If the temperature of a place increases suddenly, the relative humidity – (1) Increases (2) Decreases (3) Remains constant (4) Fluctuates
Last Answer : (2) Decreases Explanation: Relative humidity is the ratio of the partial pressure of water vapor in an airwater mixture to the saturated vapor pressure of water at a prescribed ... of the system decreases because the saturated vapor pressure of water increases with increasing temperature.
Description : If the temperature of a place increases suddenly, the relative humidity (1) Increases (2) Decreases (3) Remains constant (4) Fluctuates
Last Answer : Decreases
Description : Why does bleeding occur through the nose in high mountainous regions? (1) The pressure of blood in capillaries is greater than the outside pressure (2) The pressure at high altitudes is ... of a person increases at high altitudes (4) The blood pressure fluctuates and finally decreases drastically
Last Answer : (3) The blood pressure of a person increases at high altitudes Explanation: Nose bleeds can occur at high altitudes. The bleeding may be caused by the change in air pressure associated with the ... of blood from the nostrils. Stress and anxiety raises the blood pressure, complicating the nose bleed.
Description : Strength of concrete with passage of time (A) Increases (B) Decreases (C) Fluctuates (D) Remains constant
Last Answer : A
Description : nelastic demand in industrial markets refers to a situation where A)demand for a given product fluctuates very little over time. B)price increases or decreases will not significantly alter demand for a ... for another product. E)supply for a given product cannot keep up with the demand for it.
Last Answer : )price increases or decreases will not significantly alter demand for a given product.
Description : If a metallic object is heated, its density generally: w) increases x) decreases y) fluctuates randomly z) remains the same
Last Answer : ANSWER: X -- DECREASES
Description : Assuming all other parameters remain constant, what happens to the pressure of a gas when the volume of the gas is increased? w) increases x) decreases y) fluctuates sinusoidally z) remains the same
Description : Why does bleeding occur through the nose in high mountainous regions ? (1) The pressure of blood in capillaries is greater than the outside pressure (2) The pressure at high altitudes is ... of a person increases at high altitudes (4) The blood pressure fluctuates and finally decreases drastically
Last Answer : The blood pressure of a person increases at high altitudes
Description : Dew point of a gas-vapour mixture (A) Increases with temperature rise (B) Decreases with temperature rise (C) Decreases with decrease in pressure (D) Increases with increase in pressure
Last Answer : (C) Decreases with decrease in pressure
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
Description : Molecular diffusivity of a liquid (A) Increases with temperature (B) Decreases with temperature (C) May increase or decrease with temperature (D) Is independent of temperature
Last Answer : (A) Increases with temperature
Description : The relative volatility of a binary mixture at constant temperature __________ the total pressure. (A) Decreases with increase in (B) Increases with increase in (C) Is independent of (D) None of these
Last Answer : (A) Decreases with increase in
Description : Internal energy of an ideal gas (A) Increases with increase in pressure (B) Decreases with increase in temperature (C) Is independent of temperature (D) None of these
Last Answer : D) None of these
Description : The atmospheric temperature during melting of ice/snow (in the atmosphere) (A) Decreases (B) Increases (C) Remain same (D) May increase or decrease; depends on the altitude where snow melts Answer
Last Answer : A) Decreases
Description : In the pressure cooker, cooking is faster because the increase in vapour pressure - (1) increase the specific heat (2) decreases the specific heat (3) decreases the boiling point (4) increases the boiling point
Last Answer : (4) increases the boiling point
Description : Presence of a non-condensing gas in a condensing vapour (A) Increases the rate of condensation (B) Decreases thermal resistance (C) Is desirable to increase the film co-efficient (D) None of these
Last Answer : (D) None of these
Description : At boiling point of liquids, its : (1) Temperature increases (2) Atmospheric pressure increases (3) Timperature remains increases (4) Vapour pressure decreases
Last Answer : (3) Timperature remains increases
Description : At boiling point of liquids, its – (1) Temperature increases (2) Atmospheric pressure increases (3) Temperature remains constant (4) Vapour pressure decreases
Last Answer : (3) Temperature remains constant Explanation: An interesting property of matter is that its temperature remains constant during a phase change, assuming its surrounding pressure is constant. A liquid changes into gaseous state at a constant temperature called its boiling point.
Description : At boiling point of liquids, its (1) Temperature increases (2) Atmospheric pressure increases (3) Temperature remains constant (4) Vapour pressure decreases
Last Answer : Temperature remains constant
Description : Melting point of ice _______. (1) increases with increase of pressure (2) decreases with increase of pressure (3) is independent of pressure (4) None of these
Last Answer : (2) decreases with increase of pressure Explanation: The melting point of ice at 1 atmosphere of pressure is very close to 0 °C (32 °F, 273.15 K); this is also known as the ice point.
Description : According to special theory of relativity the mass of a particle – (1) increases with increase in velocity with respect to an observer. (2) decreases with increase in velocity. (3) decreases with decrease in velocity. (4) is independent of its velocity.
Last Answer : (1) increases with increase in velocity with respect to an observer. Explanation: According to the Special Theory of Relativity, the mass of a moving object measures more as its velocity increases until, ... becomes infinite. This is because as an object gains speed, it gains more (kinetic) energy.
Description : According to special theory of relativity the mass of a particle (1) increases with increase in velocity with respect to an observer. (2) decreases with increase in velocity. (3) decreases with decrease in velocity. (4) is independent of its velocity.
Last Answer : increases with increase in velocity with respect to an observer.
Description : i)Vapour pressure increases with increase in temperature. ii)Giycerine is more viscous than water.
Last Answer : Ans. i) At higher temperature inter particle attraction weakens and more number of mole cules escape to vapour. ii) As interparticle forces are stronger in glycerine.
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
Description : When the water is warm, the height to which it can be lifted by a pump (A) Decreases due to reduced viscosity (B) Decreases due to reduced vapour pressure (C) Increases due to increased vapour pressure (D) Decreases due to increased frictional resistance
Last Answer : (B) Decreases due to reduced vapour pressure
Description : Boiling point elevation of an ideal solution (A) Increases rapidly with temperature rise (B) Decreases rapidly with temperature rise (C) In independent of pressure (D) Both (B) and (C)
Last Answer : (A) Increases rapidly with temperature rise
Description : The bulk modulus of elasticity of a liquid (A) Is zero for incompressible liquid (B) Decreases with pressure (C) Is independent of temperature & pressure (D) Increases with pressure
Last Answer : (D) Increases with pressure
Description : If the heat of solution of an ideal gas in a liquid is negative, then its solubility at a given partial pressure varies with the temperature as (A) Solubility increases as temperature ... (D) Solubility increases or decreases with temperature depending on the Gibbs free energy change of solution
Last Answer : (B) Solubility increases as temperature decreases
Description : Back-trapping in a distillation column (A) Increases tray efficiency (B) Decreases tray efficiency (C) Reduces pressure drop (D) Is desirable, as it provides improved vapour-liquid contact
Last Answer : (B) Decreases tray efficiency
Description : An excess of flaky particles in concrete aggregates (A) Decreases the workability (B) Increases the quantity of water and sand (C) More than 15% are not desirable (D) All the above
Last Answer : Answer: Option D
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)
Description : Water vapour turns into clouds in the atmosphere when: A. It rains B. The temperature rise C. Dew point is reached (Answer) D. Evaporation takes place
Last Answer : C. Dew point is reached (Answer)
Description : The temperature at which the air cannot hold all the water vapour mixed in it and some vapour starts condensing is called as A. humidification temperature B. dehumidification temperature C. dew point temperature D. none of the above
Last Answer : ANSWER : C
Description : If an industry is characterized by economies of scale then - (1) barriers to entry are not very large (2) long run unit costs of production decreases as the quantity the firm produces increases (3) ... of the large scale operation (4) the costs of entry into the market are likely to be substantial
Last Answer : (2) long run unit costs of production decreases as the quantity the firm produces increases Explanation: In microeconomics, economies of scale are the cost advantages that an enterprise obtains due to expansion ... in unit cost as the size of a facility and the usage levels of other inputs increase.
Description : The law of demand states that - (1) if the price of a good increases, the demand for that good decreases. (2) if the price of a good increases, the demand for that good increases. (3) if ... of that good decreases (4) if the price of a good increases, the quantity demanded of that good increases.
Last Answer : (3) if the price of a good increases, the quantity demanded of that good decreases. Explanation: The law of demand states that, other things remaining the same, the quantity demanded of ... demand, there is an inverse relationship between price and quantity demanded, other things remaining the same.
Description : The law of demand states that (1) if the price of a good increases, the demand for that good decreases. (2) if the price of a good increases, the the demand for that good increases. (3) if ... of that good decreases. (4) if the price of a good increases, the quantity demanded of that good increases.
Last Answer : if the price of a good increases, the quantity demanded of that good decreases.
Description : If an industry is characterised by economies of scale then (1) barriers to entry are not very large (2) long run unit costs of production decreases as the quantity the firm produces increases (3) ... of the large scale operation (4) the costs of entry into the market are likely to be substantial
Last Answer : long run unit costs of production decreases as the quantity the firm produces increases
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
Description : To obtain integrated form of Clausius-Clapeyron equation, ln (P2/P1) = (∆HV/R) (1/T1- 1/T2) from the exact Clapeyron equation, it is assumed that the (A) Volume of the liquid phase is negligible compared to ... gas (C) Heat of vaporisation is independent of temperature (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
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
Description : With increase in absolute humidity, the dew point of an unsaturated mixture of air and water vapor (at constant pressure and temperature). (A) Increases (B) Remains unchanged (C) Decreases (D) Decreases linearly
Last Answer : (A) Increases
Description : The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated. (A) Decreases (B) Increases (C) Remain constant (D) May increase or decrease; depends on the chemical characteristics of polluted water
Last Answer : (A) Decreases