Description : The large collection of Stars, dust and gas held together by gravitational attraction between components is known as - (1) Cluster (2) Atmosphere (3) Galaxy (4) Sun Family
Last Answer : (3) Galaxy Explanation: The term galaxy refers to a large collection of stars, dust, and gas clouds which are held together by gravitational attraction.
Description : Browning of paper in old books is caused by – (1) frequent use (2) lack of aeration (3) collection of dust (4) oxidation of cellulose
Last Answer : (4) oxidation of cellulose Explanation: Foxing is a term describing the age-related spots and browning seen on vintage paper documents such as books, postage stamps, certificates, and so forth. It ... oxidation of cellulose or the effect on certain papers of the oxidation of iron, copper, etc.
Description : The large collection of Stars, dust and gas held together by gravitational attraction between components is known as (1) Cluster (2) Atmosphere (3) Galaxy (4) Sun Family
Description : The large collection of stars, dust and gas held together by gravitational attraction between components is known as – (1) Cluster (2) Atmosphere (3) Galaxy (4) Sun Family
Last Answer : (3) Galaxy Explanation: The term galaxy refers to a large collection of stars, dust, and has clouds which are held together by gravitational attraction. The smallest galaxies may contain only a ... largest galaxies have thousands of billions of stars. The Milky Way galaxy contains our solar system.
Description : Dust collection efficiency of electrostatic precipitator can be as high as 99.9%. Maximum temperature and pressure of dust laden gas that can be cleaned in an electrostatic precipitator is respectively. (A) 200°C and 5 atm (B) 1000°C and 10 atm (C) 500°C and 50 atm (D) 1000°C and 500 atm
Last Answer : (B) 1000°C and 10 atm
Description : Dust collection efficiency of a cyclone separator depends upon its (A) Diameter (B) Inlet gas velocity (C) Overall height (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : Which of the following dust collection equipments is the least efficient (for sub-micronic particles)? (A) Dust catcher (gravity type) (B) Cyclone separator (C) Bag filter (D) Hollow wet scrubber
Last Answer : (A) Dust catcher (gravity type)
Description : Pick out the wrong statement. (A) A slight haze at the top of chimney indicates good combustion in the furnace (B) A bag filter incurs very small pressure drop and is very efficient for ... dust collection equipment for removal of submicronic dust particles present in flue gas (D) None of these
Last Answer : (B) A bag filter incurs very small pressure drop and is very efficient for removal of submicronic dust particles from flue gases at very high temperature
Description : Browning of paper in old books is caused by (1) frequent use (2) lack of aeration (3) collection of dust (4) oxidation of cellulose
Last Answer : oxidation of cellulose
Description : The large collection of stars, dust and gas held together by gravitational attraction between components is known as (1) Cluster (2) Atmosphere (3) Galaxy (4) Sun Family
Last Answer : Galaxy
Description : Explain ash disposal and dust collection in a thermal power plant.
Last Answer : Ash disposal:- Various methods of disposal of ash are: Mechanical handling system. Pneumatic system. Hydraulic system Steam jet system Commonly used ash handling ... be done either manually or automatically. This removed fly ash is collected in separate container
Description : The main reason for deforestation in Asia is - (1) excessive fuel wood collection (2) excessive soil erosion (3) floods (4) construction of roads
Last Answer : (1) excessive fuel wood collection Explanation: The main causes of total clearance are agriculture and in drier areas, fuelwood collection. The main cause of forest degradation is logging. Mining, ... and heating are overcutting forests'. This problem is worst in drier regions of the tropics.
Description : The main reason for deforestation in Asia is (1) excessive fuel wood collection (2) excessive soil erosion (3) floods (4) construction of roads
Last Answer : excessive fuel wood collection
Description : Why we ought to require best dust mite mattress protector to avoid certain clinical issues?
Last Answer : Fern Fabric is the best in a sleeping cushion defender. The sleeping cushion and covers are waterproof. The benefit of utilizing these sleeping dust mite pillow protector that it keeps the allergens ... lovely. Additionally, it is anything but difficult to deal with as it is machine launderable.
Description : Ways to get rid of excessive spitting ? Explain why I spit so much and how to avoid it.
Last Answer : Excessive saliva will make you drink more water and take gas medicine. Again some people become accustomed to spitting excessively. If so, try to eliminate it. You can put chewing gum and chocolate in your ... stop excess saliva. If you have more problems, take the advice of a doctor. Thank you!
Description : The outlet temperature of cooling water in a heat exchanger is generally not allowed to exceed above 50°C in industrial practice mainly to avoid (A) Its evaporation loss (B) Excessive corrosion (C) Uneconomic LMTD (D) Decrease in heat exchanger efficiency
Last Answer : (B) Excessive corrosion
Description : is the application of sprayer. a) To break the liquid droplet of effective size b) To distribute them uniformly event plants c) To regulate amount of liquid to avoid excessive application. d) All above them
Last Answer : All above them
Description : Consider the following statements: Air vessels are fitted on the suction and delivery sides of a reciprocating pump to 1. Achieve higher speed without separation. 2. Reduce work in overcoming frictional resistance. 3. Avoid excessive vibration ... 2 & 3 only (c) 2, 3 & 4 only (d) 1, 2, 3 & 4
Last Answer : (d) 1, 2, 3 & 4
Description : In single core cables armouring is not done to (a) avoid excessive sheath losses (b) make it flexible (c) either of the above (d) none of the above
Last Answer : (a) avoid excessive sheath losses