Description : The basic underlying principle of using a mist propagation system is that it: a. Keeps the propagation medium uniformly moist and supplies moisture to the base of the cuttings b. ... medium to promote root formation and development d. Increases humidity around the cutting and reduces transpiration
Last Answer : Increases humidity around the cutting and reduces transpiration
Description : The moisture deficit condition, results when the amount of water vapour available in the soil is not sufficient to meet the demand of potential evapo-transpiration
Last Answer : Ans.Drought
Description : Pick out the wrong statement: (A) Change in barometric pressure does not affect the relative humidity (B) In case of a packed tower, the operating velocity is about half of the ... (D) The equilibrium moisture content of the solid can be reduced by increasing the absolute humidity
Last Answer : (D) The equilibrium moisture content of the solid can be reduced by increasing the absolute humidity
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
Description : Evaporation losses depend upon (A) Area of the water surface and depth of the water (B) Nature of precipitation and type of vegetation (C) Humidity and wind velocity (D) All the above
Last Answer : Answer: Option D
Description : Evaporation from water surfaces exposed to air is not dependent of the: w) velocity of the wind x) humidity y) temperature z) depth of the water
Last Answer : ANSWER: Z -- DEPTH OF THE WATER
Description : Richter Scale is used for measuring : (1) Velocity of wind (2) Density of liquid (3) Intensity of earthquake (4) Humidity of air
Last Answer : Intensity of earthquake
Description : What is the major cause of 'October Heat'? (1) Hot and dry weather (2) Very low velocity winds (3) Low pressure systems over the IndoGangetic plains (4) High temperature associated with high humidity
Last Answer : (4) High temperature associated with high humidity Explanation: The months of OctoberNovember mark a period of transition from hot rainy season to cold dry winter conditions. This period is ... temperature and high humidity, weather becomes oppressive. This phenomenon is known as 'October heat.
Description : Velocity of sound in air does not change with the change of – (1) Temperature of air (2) Pressure of air (3) Moisture content in air (4) Wind in the direction of propagation of sound
Last Answer : (2) Pressure of air Explanation: The speed of sound in an ideal gas is independent of frequency, but it weakly depends on frequency for all real physical situations. It is a function of the ... ideal gas. Sound speed is slightly dependent on pressure only because air is not quite an ideal gas.
Description : Velocity of sound in air does not change with the change of (1) Temperature of air (2) Pressure of air (3) Moisture content in air (4) Wind in the direction of propagation of sound
Last Answer : Pressure of air
Description : The Beaufort scale is used to measure : (1) Atmospheric pressure (2) Altitudes of mountains (3) Wind velocity (4) Intensity of earthquakes
Last Answer : Wind velocity
Description : Which of the following statements describes the significance of ambient temperature in relation to the service life of electronic components? A. Ambient temperature should be as high as possible to drive ... is kept low. D. A reduced ambient temperature causes a corresponding reduced service life.
Last Answer : Answer: B
Description : The most widely accepted theory for ascent of sap in trees is (a) capillarity (b) role of atmospheric pressure (c) pulsating action of living cell (d) transpiration pull and cohesion theory of Dixon and Jolly.
Last Answer : (d) transpiration pull and cohesion theory of Dixon and Jolly.
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 : How do you describe the relationship between moisture content and microbial activity as the soil is gradually increased from this dry state to a saturated one What factors dictate the shape of the cur?
Last Answer : Need answer
Description : A field soil sample weighing 60 g, lost12 g on over dying. What is the moisture percent on dry weight basis?
Last Answer : Ans. 25%
Description : A period in which the available soil moisture is enough to meet the evapotranspiration requirement of dry land crops
Last Answer : Ans.Length of growing period
Description : Which of the following methods does not help in conserving soil fertility and moisture? (1) Contour ploughing (2) Dry farming (3) Strip cropping (4) Shifting agriculture
Last Answer : (4) Shifting agriculture Explanation: Shifting cultivation is an agricultural system in which plots of land are cultivated temporarily, then abandoned. It is also known as slash and burn ... reclaimed by natural vegetation, or sometimes converted to a different long-term cyclical farming practice.
Description : Excessive soil moisture, late in the season cause. a. Decrease in TSS decrease in dry matter b. Increase in TSS decrease in dry matter c. Decrease in TSS increase in dry matter d. None of above
Last Answer : Decrease in TSS increase in dry matte
Description : W is the weight of soil having a moisture content w. If V is the volume of proctor's mould, the dry density of the soil is (A) WV/(1 + w) (B) V/w (1 + w) (C) W/V(1 + w) (D) V (1 + w)/W
Last Answer : (C) W/V(1 + w)
Description : Pick up the correct statement from the following: (A) O.M.C. refers to the moisture corresponding to the maximum point on the moisture content dry density curve (B) The line which shows moisture content dry ... void line (C) The free fall of hammer for compaction is 30.5 cm (D) All the above
Last Answer : (D) All the above
Description : Pick up the incorrect statement from the following: (A) Compaction has no effect on the structure of a soil (B) Permeability decreases with increase in the dry density of a compacted soil (C) ... a dry side compacted soil (D) Dry side compaction soils swell more when given access to moisture
Last Answer : (A) Compaction has no effect on the structure of a soil
Description : The maximum dry density upto which any soil can be compacted depends upon (A) Moisture content only (B) Amount of compaction energy only (C) Both moisture content and amount of compaction energy (D) None of the above
Last Answer : (C) Both moisture content and amount of compaction energy
Description : When there is sufficient power available some soil types are ploughed ………… A. Wet. C) Dry B. Moisture. D) Non of the above.
Last Answer : Dry
Last Answer : Shifting agriculture
Description : If the air is only holding one-third as much moisture as it can possibly hold what is the relative humidity?
Last Answer : 35
Description : The term "relative humidity" applies to a) the percentage of moisture in the air as compared to the amount of moisture the air can hold at a specific temperature b) the weight of the moisture in the air c) ... of the air d) the amount of moisture in the air e) the amount of humidity in the air
Last Answer : ANSWER : A
Description : Absolute or specific humidity is a) the actual mass of moisture present in a specific amount of air b) the maximum mass of moisture that a specific amount of air can hold c) the ratio of ... a specific amount of air at that absolute temperature e) a specific amount of air saturated with moisture
Description : The moisture content lines in psychrometric chart are also called as A. relative humidity lines B. specific humidity lines C. both a. and b. D. none of the above
Last Answer : ANSWER : B
Description : Equilibrium-moisture curves of different solids (A) Are different (B) Are same (C) Depend on the humidity of the gas (D) None of these
Last Answer : (A) Are different
Description : During the constant rate period of drying of a solid, (A) Increased air humidity decreases the rate of drying (B) Increasing the air temperature decreases the drying rate (C) Surface evaporation of unbound moisture occurs (D) None of these
Last Answer : (C) Surface evaporation of unbound moisture occurs
Description : The most important seed component affecting seed /viability during storage is: a. Temperature b. Humidity c. Moisture d. Food reserves
Last Answer : Temperature
Description : Moisture loss is determined by the (A) Humidity of combustion air (B) Moisture content of fuel (C) Both (A) and (B) (D) The water formed by combustion reaction
Last Answer : (C) Both (A) and (B)
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 : 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
Description : Atmospheric pressure readings are converted to standard atmospheric pressure to allow for comparable readings regardless of temperature, elevation, or humidity.?
Last Answer : TRUE
Description : The hygrometer is an instrument to measure (a) the relative density of liquids (b) the purity of milk (c) relative humidity (d) atmospheric pressure
Last Answer : Ans:(c)
Description : Hydroscope is an instrument that shows changes in: (1) Sound under water (2) Atmospheric humidity (3) Density of liquid (4) None of these
Last Answer : (4) None of these Explanation: Hydroscope is an optical device for enabling a person to see an object at a considerable distance below the surface of water by means of a series of mirrors ... usually converted to sound pressure level (SPL), a logarithmic measure of the mean square acoustic pressure.
Description : ECE Board Exam March 1996 Atmospheric condition is controlled by A. humidity B. pressure C. temperature D. all of these
Last Answer : D. all of these
Description : Screen capacity is not a function of (A) Its openings size (B) Screening mechanism (C) Screening surface (D) Atmospheric humidity
Last Answer : (D) Atmospheric humidity
Description : Pick out the wrong statement (A) A horizontal line on the humidity chart indicates the temperature changes at constant molal humidity (B) When water is cooled from 80 to 70°C by exposure ... & air cannot be increased by either reducing the mixture temperature or by increasing the total pressure
Last Answer : (D) Relative saturation of unsaturated mixture of water vapor & air cannot be increased by either reducing the mixture temperature or by increasing the total pressure
Description : If atmospheric temperature and dew point are nearly equal, then the relative humidity is (A) Zero (B) 50% (C) Almost 100% (D) unpredictable
Last Answer : (C) Almost 100%
Description : Compressed air coming out from a punctured football (a) becomes hotter (b) becomes cooler1 (c) remains at the same temperature (d) may become hotter or cooler depend-ing upon the humidity of the surround¬ing air (e) attains atmospheric temperature.
Last Answer : (b) becomes cooler1
Description : A cobalt chloride solution soaked into a piece of cotton can be used as an indicator for changes in humidity levels. Pink indicates a high-humidity environment and blue a low-humidity environment. What ... the cobalt's waters of hydration. z) This is an illustration of the Schrodinger principle.
Last Answer : ANSWER: Y -- THE LOSS AND READSORPTION OF THE COBALT'S WATERS OF HYDRATION.
Description : Transpiration increases in – (1) Hot, thy and windy condition (2) Hot, damp and windy condition (3) Cool, damp and windy condition (4) Cool, dry and still condition
Last Answer : (1) Hot, thy and windy condition
Description : If PE denotes monthly average value of potential evapo–transpiration and R stands for monthly average rainfall, the period having PE/4 greater than or equal to R, is designated as...... (A) Moist (B) Humid (C) Moderately Dry (D) Severe Drought (E) Dry
Last Answer : (C) Moderately Dry
Description : Transpiration increases in : (1) Hot, dry and windy condition (2) Hot, damp and windy condition (3) Cool, damp and windy condition (4) Cool, dry and still condition
Last Answer : Hot, dry and windy condition
Description : the combination of sulfur dioxide, nitrogen oxide, and atmospheric moisture creates -General Knowledge
Last Answer : The combination of sulfur dioxide, nitrogen oxide, and atmospheric moisture creates Acid rain.
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