Description : The velocity of sound in moist air is more than in dry air because the moist air has (1) less density than city air (2) less pressure than dry air (3) more pressure than dry air (4) more density than dry air
Last Answer : (1) less density than city air Explanation: The density of dry air is more than that of moist air (when moisture is removed from air, its density. increases). The speed of sound in a medium is inversely ... root of its density. Therefore, the speed of sound in moist air is more than that in dry air.
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
Description : Sound is heard over longer distances on rainy days because – (1) sound travels slowly in moist air (2) sound travels faster in moist air (3) moist air does not absorb sound (4) moist air absorbs sound
Last Answer : (2) sound travels faster in moist air Explanation: The speed of sound in a medium is inversely proportional to the square root of its density. Higher is the humidity in the air, greater will be the velocity ... of trains and others are heard up to longer distances on a rainy day than on a dry day.
Description : Sound is heard over longer distances on rainy days because (1) sound travels slowly in moist air (2) sound travels faster in moist air (3) moist air does not absorb sound (4) moist air absorbs sound
Last Answer : sound travels faster in moist air
Description : Velocity of sound in air does not depend on – (1) Density of air (2) Temperature of air (3) Pressure of air (4) Humidity of air
Last Answer : (3) Pressure of air Explanation: Assuming air to be an ideal gas, the speed of sound depends on temperature only. As air temperature increases, so does the speed of sound and vice versa. ... air pressure because the air pressure and air density are proportional to each other at the same temperature.
Description : Velocity of sound in air does not depend on (1) Density of air (2) Temperature of air (3) Pressure of air (4) Humidity of air
Last Answer : Pressure of air
Description : The dew point of moist air becomes __________ with decrease in its relative humidity. (A) Less than the wet bulb temperature (B) More than the wet bulb temperature (C) More than the dry bulb temperature (D) Equal to wet bulb temperature
Last Answer : Option A
Description : Which of the following can be calculated theoretically using steam table and Dalton's law of partial pressure; if the relative humidity and dry bulb temperature of moist air is known? (A) Dew point (B) Humidity ratio (C) Wet bulb temperature (D) None of these
Last Answer : (C) Wet bulb temperature
Description : Which one among the following doesn't have any effect on velocity of sound? (1) Pressure (2) Temperature (3) Humidity (4) Density
Last Answer : (3) Humidity Explanation: The speed of sound varies depending on the temperature, pressure, and density of the medium through which the sound waves travel. In most of the cases, it is density ... (or other material). The density of air is affected by atmospheric pressure, temperature, and altitude.
Description : Which one among the following doesn't have any effect on velocity of sound ? (1) Pressure (2) Temperature (3) Humidity (4) Density
Last Answer : Humidity
Description : Why is moist heat more versatile than dry heat? a. It More Easily Penetrates Materials. b. Water Molecules Conduct Heat Better Than Air c. It Denatures Proteins By Changing Their Structure And Chemical Bonds d. A-C Are Correct
Last Answer : d. A-C Are Correct
Description : The clouds float in the atmosphere because of their low: (1) temperature (2) velocity (3) pressure (4) density
Last Answer : (4) density Explanation: Clouds generally form, survive and grow in air that is moving upward. Rising air expands as the pressure on it decreases, and that expansion into thinner, high-altitude air causes cooling.
Description : What air pressure usually means rainy weather because moist air is rising?
Last Answer : Need answer
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
Description : In North America most winter storms form when cold dry air from what interact with warm moist air from?
Description : What type of air (warm cold dry or moist) exists in the four types of air masses?
Last Answer : Feel Free to Answer
Description : The characteristics of Class Reptilia are (a) body covered with moist skin which is devoid of scales, the ear is represented by a tympanum, alimentary canal, urinary and reproductive tracts open into ... dry and cornified skin, scales over the body are epidermal, they do not have external ears.
Last Answer : (d) body covered with dry and cornified skin, scales over the body are epidermal, they do not have external ears.
Description : Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs? (A) Enthalpy (B) Relative humidity (C) Wet bulb temperature (D) Dew point temperature
Last Answer : (D) Dew point temperature
Description : psychrometer does not measure the __________ temperature of moist air. (A) Dew point (B) Dry bulb (C) Wet bulb (D) None of these
Description : __________ remains constant during the adiabatic cooling of moist air. (A) Wet bulb temperature (B) Dry bulb temperature (C) Relative humidity (D) Specific humidity
Description : The dew point temperature lines on psychrometric charts are straight inclined sloping downwards to the right. When relative humidity of moist air is 100%, then (A) Wet bulb temperature=dry bulb temperature (B) ... temperature (C) Saturation temperature=dew point temperature (D) All 'a', 'b' & 'c
Last Answer : Option D
Description : If density of oxygen is 16 times that of hydrogen, what will be their corresponding ratio of velocity of sound? (1) 4 : 1 (2) 2 : 1 (3) 1 : 16 (4) 1 : 4
Last Answer : (4) 1 : 4
Description : Velocity of sound waves through any material depends on A. the material's density ‘d’ only B. the material's density ‘d’ as well as its modulus of elasticity ‘E’ C. the material's modulus of elasticity ‘E’ only D. neither the material's density ‘d’ nor its modulus of elasticity ‘E’
Last Answer : the material's density ‘d’ as well as its modulus of elasticity ‘E’
Last Answer : 1 : 4
Description : The nurse recognizes which of the following signs as typical of the patient in shock? a) Rapid, weak, thready pulse Pulse increases as the body tries to compensate. b) Flushed face Pallor is ... urine output Usually, a low blood pressure and concentrated urine are observed in the patient in shock.
Last Answer : a) Rapid, weak, thready pulse Pulse increases as the body tries to compensate.
Description : In the above problem, what is the new velocity of sound assuming dry air medium? A. 343 ft/s B. 3430 m/s C. 343 m/s D. 342 m/s
Last Answer : C. 343 m/s
Description : At 100% relative humidity, the dew point temperature of moist air is (A) Less than the wet bulb temperature (B) More than the wet bulb temperature (C) Equal to the wet bulb temperature (D) Equal to the ambient temperature
Last Answer : (B) More than the wet bulb temperature
Description : The velocity of heat radiation in vacuum is – (1) Equal to that of light (2) Less than that of light (3) Greater than that of light (4) Equal to that of sound
Last Answer : (1) Equal to that of light Explanation: Electrons are generally responsible for heat conduction. The phonons (vibrations of the nuclei) also play a part, depending on the temperature of the ... Electromagnetic radiation, which in a vacuum should go on forever at the speed of light theoretically.
Description : The velocity of heat radiation in vacuum is (1) Equal to that of light (2) Less than that of light (3) Greater than that of light (4) Equal to that of sound
Last Answer : Equal to that of light
Description : Quicksand is a) Moist sand containing a small percentage of clay b) Is a condition which generally occurs in coarse sands c) Is a condition in which cohesive properties of soil increase rapidly d) Is a condition in which a cohesion less soil loses its strength because of upward flow of water
Last Answer : d) Is a condition in which a cohesion less soil loses its strength because of upward flow of water
Description : The velocity of sound is more in – (1) water (2) air (3) steel (4) wood
Last Answer : (3) steel Explanation: Sound travels at different speeds depending on what it is traveling through. Of the three mediums (gas, liquid, and solid) sound waves travel the slowest through gases, ... liquids, and fastest through solids. They travel over 17 times faster through steel than through air.
Description : The velocity of sound is more in (1) water (2) air (3) steel (4) wood
Last Answer : steel
Description : Why does bread mould grow profusely on a moist slice of bread rather than on a dry slice of bread? -Biology
Last Answer : Answer.Bread mould require moisture and nutrients for its growth. A moist slice of bread contains both moisture and nutrients hence, it grows profusely as compared to a dry slice of bread which contains only nutrients but no moisture.
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 : The velocity of sound in air – (1) decreases with increase of temperature (2) increases with decrease of temperature (3) does not depend on temperature (4) decreases with decrease of temperature
Last Answer : (4) decreases with decrease of temperature Explanation: Assuming air to be an ideal gas, the speed of sound c depends on temperature only, not on the pressure or density. As air ... to the individual air particles having extra kinetic energy at higher temperatures and lesser at lower temperatures.
Description : In which medium, velocity of sound is maximum? (1) Metals (2) Air (3) Water (4) Polymer
Last Answer : (1) Metals Explanation: The speed of sound is highest in solid. The speed of sound depends on the density of the medium through which it is travelling.
Description : Velocity of the sound is minimum in - (1) Steel (2) Vacuum (3) Water (4) Air
Last Answer : (2) Vacuum Explanation: The speed of sound in a vacuum is zero meters per second, as sound cannot travel in a vacuum. Sound is a wave, which means it spreads through the vibration of particles in a medium, such as water or air.
Description : The velocity of sound in air (1) decreases with increase of temperature (2) increases with decrease of temperature (3) does not depend on temperature (4) decreases with decrease of temperature
Last Answer : decreases with decrease of temperature
Description : The shearing strength of a cohesion-less soil depends upon (A) Dry density (B) Rate of loading (C) Confining pressure (D) Nature of loading
Last Answer : Answer: Option C
Description : when to plant african daisy in flower bed. sun or shade? moist or dry soil
Last Answer : Need Answer
Description : how much water does broccli need moist soil or dry??
Last Answer : we use black cloth & mulch, when it rains good................when it gets dry must water...............don't let them flower, cut them on an angle under the veggie you will get another one in ... cold water to get the bugs out................do this outside or they will scatter inside your home.
Description : how long will it take a plum seed to sprout in a moist wet napkin in a dark cool dry place?
Description : why is the rootball of my plants dry if all the soil around it is moist
Description : (i) `KI+H_(2)O+O_(3)rarrA+B+O_(2)` (A turns moist starch paper blue, B turns red litmus blue) (ii) A(dry)`+O_(3)rarrX+O_(2)` What is true about X in t
Last Answer : (i) `KI+H_(2)O+O_(3)rarrA+B+O_(2)` (A turns moist starch paper blue, B turns red litmus blue) ... )` D. Average oxidation state of iodine in X is `+5`
Description : Match the following: List-I List-II (Crops) (Geographical conditions) A. Barley 1. Hot and dry climate with poor soil B. Rice 2. Cool climate with poorer soil C. Millets 3. Warm and moist climate with high altitude D. Tea 4. Hot and moist ... C D (a) 2 4 1 3 (b) 3 4 1 2 (c) 2 1 4 3 (d) 3 2 4 1
Last Answer : Ans: (a)
Description : Kanha National Park belongs to which one among the following biogeographical areas in the world? [CDS 2011] (a) Tropical Sub-humid Forests (b) Tropical Humid Forests (c) Tropical Dry Forests (d) Tropical Moist Forests
Description : Match the following [IAS 1997] Crops Geographical conditions A. Barley 1. Hot and dry climate with poor soil B. Rice 2. Cool climate with poorer soil C. Millets 3. Warm and Moist climate with high altitude D. Tea 4. Hot and Moist climate with ... D (a) 2 4 1 3 (b) 3 4 1 2 (c) 2 1 4 3 (d) 3 2 4 1