Description : When air is warm, it rises and leaves an area of low pressure which becomes filled with sinking cold air. After a hot, sunny day, the land cools faster than the sea. What is likely to happen after a hot, sunny day on the sea shore?
Last Answer : When air is warm, it rises and leaves an area of low pressure which becomes filled with sinking cold air. After a hot, sunny day, the land cools faster than the sea. What is likely to happen after a hot, sunny day on the sea shore?
Description : What is The point at which the air becomes saturated with water molecules due to cooling is called .?
Last Answer : Feel Free to Answer
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
Last Answer : Answer: D
Description : What will happen when the earth's core cools?
Last Answer : It’ll be a few billion years before this happens so I’ll keep my concern at a minimum… (thinks about how the recession is affecting her finances again)
Description : A solid aluminium ball, when quenched in a water bath maintained at 40°C, cools down from 550°C to 450°C in 20 seconds. The expected temperature of the ball after next 20 seconds may be about __________ °C. (A) 370 (B) 340 (C) 320 (D) 300
Last Answer : (A) 370
Description : __________ is the temperature at which a gas-vapor mixture becomes saturated, when cooled at constant total pressure out of contact with a liquid. (A) Dew point (B) Bubble point (C) Dry bulb temperature (D) Wet bulb temperature
Last Answer : (A) Dew point
Description : At the boiling point of the liquid at the prevailing pressure, the saturated absolute humidity becomes (A) 1 (B) 0 (C) ∞ (D) None of these
Last Answer : (C) ∞
Description : How much heat energy will be lost by a 200 gram mass of water as it cools from 40 C to 35C?
Last Answer : You need to multiply together all of the following:* The mass ingrams* The temperature difference* The specific heat of water
Description : A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in __________ minutes. (A) 10 (B) > 10 (C) < 10 (D) Either (B) or (C), depends on the mass of the body
Last Answer : (B) > 10
Description : A hot air balloon has a volume of 2800 m^3 at 99°C. What is the volume if the air cools to 80°C?
Last Answer : A hot air balloon has a volume of 2800 m3 at 99°C. What is the volume if the air cools to 80°C?
Description : During hot weather, the fan produces a feeling of comfort. This is because – (1) fan supplies cool air (2) fan cools the air (3) our perspiration evaporates rapidly (4) conductivity of air increases
Last Answer : (3) our perspiration evaporates rapidly Explanation: Fans make the air more comfortable for two reasons: (1) by moving the air, they blow away body heat and evaporate sweat, cooling the body, and (2) they also mix the cooler air near the floor with the warmer air by people's faces.
Description : We feel cool when we sit near the fan, this is because – (1) fan gives cool air. (2) an cools surrounding air. (3) air vapourises the sweat on our body. (4) we feel cool when air touches the body.
Last Answer : (3) air vapourises the sweat on our body. Explanation: We feel comfortable sitting under a fan when we are perspiring because a fan increases the rate of evaporation of sweat (or moisture) from our body and makes us feel cool and comfortable.
Description : The first step in the generation of a sea breeze is . (a) air over land expands and builds a pressure gradient at the surface that pushes air offshore (b) air over land expands and builds ... forms a cloud (d) air over land expands and builds a pressure gradient aloft that pushes air offshore
Last Answer : air over land expands and builds a pressure gradient aloft that pushes air offshore
Description : We feel cool when we sit near the fan, this is because (1) fan gives cool air. (2) fan cools surrounding air. (3) air vapourises the sweat on our body. (4) we feel cool when air touches the body.
Last Answer : air vapourises the sweat on our body.
Description : During hot weather, the fan produces a feeling of comfort. This is because (1) fan supplies cool air (2) fan cools the air (3) our perspiration eva-porates rapidly (4) conductivity of air increases
Last Answer : our perspiration eva-porates rapidly
Description : In “Product Life Cycle†in _______ stage market becomes saturated a.Mature stage b.Growth stage c.Decline stage d.Introduction stage
Last Answer : a.Mature stage
Description : Pick up the correct statement from the following: (A) The phenomenon of quicksand generally occurs in the cohesionless soil (B) At critical hydraulic gradient, the saturated sand becomes quick (C) The critical gradient depends on the void ratio and the specific gravity (D) All the above
Last Answer : (D) All the above
Description : gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its (A) Aqueous tension (B) Saturated humidity (C) Vapor pressure
Last Answer : Option A
Description : Cavitation will begin when (A) The pressure at any location reaches an absolute pressure equal to the saturated vapour pressure of the liquid (B) Pressure becomes more than critical pressure (C) Flow is increased (D) Pressure is increased
Last Answer : Answer: Option A
Description : [53] The iron loss of the transformer is negligible during short circuit test because A. The entire input is just sufficient to meet Cu losses only B. Flux produced is a small fraction of the normal flux C. Iron core becomes fully saturated D. Supply frequency is held constant
Last Answer : B. Flux produced is a small fraction of the normal flux
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
Last Answer : ANSWER : A
Description : If the voids of a soil mass are full of air only, the soil is termed as (A) Air entrained soil (B) Partially saturated soil (C) Dry soil (D) Dehydrated soil
Last Answer : Option C
Description : _________________ is the name given to a gaseous phase that is in contact with the liquid phase, or that is in the vicinity of a state where some of it might be condensed. a) Vapor b) Saturated Vapor c) Superheated Vapor d) Wet Vapor
Last Answer : Vapor
Description : The dew point temperature is less than the wet bulb temperature for A. saturated air B. unsaturated air C. both saturated and unsaturated air D. none of the above
Last Answer : ANSWER : B
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 : What kind of change is it when water cools to ice ?
Last Answer : When water cools, it turns into ice. This is a physical change.
Description : What color cup of tea cools down quickly ?
Last Answer : Tea in a black cup cools quickly.
Description : Is it okay? This is a BMW
Last Answer : Yeah, it's okay after removing the key, the engine still has to cool down so that it doesn't get too hot and doesn't overheat, it takes about 1-3 minutes :-)
Description : what cools a bottle of water faster ice or ice water
Last Answer : Need Answer
Description : What is smooth glassy rock that forms when lava cools so fast that there is no time for crystals to form?
Last Answer : Obsidian
Description : Do Volcanic necks and dikes form when magma cools and hardens into rock after reaching the surface?
Last Answer : No, these features form when magma cools into rocks BEFOREreaching the surface.
Description : What is formed when the magma cools and solidifies?
Last Answer : When magma cools and solidifies, it forms igneous rock.
Description : What type of volcano forms as lava spreads over a long distance and then cools and forms a hill that slopes gently?
Last Answer : What is the answer ?
Description : What type of igneous material cools the fastest?
Last Answer : Need answer
Description : What happens when vapour if it water cools down?
Last Answer : The water vapour (often known as steam) is caused by bringing the liquid water to boiling point. When the water vapour cools it condenses back into liquid water.
Description : If a crystal cools rapidly it will?
Last Answer : small
Description : In a cup, tea cools from 90°C to 80°C in exactly one minute. It will cool from 70°C to 60°C in (a) less than one minute (b) exactly one minute (c) nearly one minute (d) more than one minute
Last Answer : Ans:(d)
Description : How does La-Nina affect the Pacific Ocean? (1) Decreases salinity of ocean (2) Cools downs the temperature of water (3) Maintains stable temperature of water (4) Increases salinity of ocean
Last Answer : (2) Cools downs the temperature of water Explanation: La-Nina is a climate pattern that describes the cooling of surface waters of the Pacific Ocean along the tropical west coast of South America.
Description : What happens to a liquid, when the vapour pressure equals the atmospheric pressure? (1) The liquid cools (2) The liquid boils (3) No change (4) The liquid evaporates
Last Answer : (2) The liquid boils Explanation: Ordinary evaporation is a surface phenomenon -since the vapor pressure is low and since the pressure inside the liquid is equal to atmospheric pressure plus ... pressure is equal to atmospheric pressure, bubbles form, and the vaporization becomes a volume phenomena.
Description : How will a molded-case circuit breaker react after it has tripped, as a result of an overloaded circuit? A. The breaker will trip again if immediately reset. B. The breaker handle will lock in ... down. D. The breaker handle cannot be moved to the OFF position until the thermal element cools down.
Last Answer : Answer: A
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 : Pick out the correct statement. (A) A real gas on expansion in vacuum gets heated up (B) An ideal gas on expansion in vacuum gets cooled (C) An ideal gas on expansion in vacuum gets heated up (D) A real gas on expansion in vacuum cools down whereas ideal gas remains unaffected
Last Answer : (D) A real gas on expansion in vacuum cools down whereas ideal gas remains unaffecte
Description : Cooling towers operate through a ____process that efficiently cools the already cycled water to be reused. 1. Heat exchange 2. Heat expand 3. Heat transfer 4. None of above
Last Answer : Heat transfer
Description : Consider the diurnal (daily) cycle of temperature at the surface. Why is the tem- perature maximum in the mid-to-late afternoon? (a) There is a net energy gain at the surface from dawn to mid- ... this time. (d) Late in the day, evaporation from the surface increases and this cools the surface.
Last Answer : There is a net energy gain at the surface from dawn to mid- afternoon.
Description : Spent fuel from a nuclear power plant cools down and loses most of its radioactivity through decay. In the first year, spent fuel loses about what percentage of its radioactivity? w) 10 percent x) 50 percent y) 80 percent z) 100 percent
Last Answer : ANSWER: Y -- 80 PERCENT
Description : How would you maintain good association with such a colleague who is clear in heart but very aggressive in behaviour? Options: A) You restrict your personal relations B) You maintain relations ... tell him his mistakes politely C) You snap your relations D) You maintain personalized relations
Last Answer : B) You maintain relations but whenever he cools down, tell him his mistakes politely
Last Answer : The liquid boils
Description : Pick out the wrong statement. (A) In the McCabe-Thiele diagram for binary distillation, vertical feed line represents saturated liquid feed and horizontal feed line represents saturated vapour feed (B) In ... layers over a flat plate are of equal thickness, if Schmidt number is equal to unity
Last Answer : (C) For Laminar flow over a plate of length L, the local mass transfer coefficient at a distance L from the leading edge is 1.5 × 10 -2m/s. Then the average mass transfer co-efficient for the plate is 2 × 10 -2m/s