Description : Which of the following industries discharge mercury as a pollutant? (A) Chloro-alkali industry (B) Tanneries (C) Beverage plant (D) Phosphoric acid plant
Last Answer : (A) Chloro-alkali industry
Description : There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant? (A) Mercury (B) Arsenic (C) Aluminium (D) Lead
Last Answer : (C) Aluminium
Description : The common pollutant generated in chlor-alkali industry and battery manufacture is (A) Mercury (B) Brine (C) Phosphate (D) None of these
Last Answer : (A) Mercury
Description : Pick out the wrong statement. (A) Hard glass which is used for making laboratory glass wares is a mixture of sodium borosilicate and aluminium borosilicate (B) Glass is decolorized during its manufacture by ... Na2O . CaO . 6SiO2 (D) Red color is imparted to glass by addition of arsenic oxide
Last Answer : (D) Red color is imparted to glass by addition of arsenic oxide
Description : Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart greenish blue color to the glass. (A) Chromium (B) Arsenic (C) Copper (D) Manganese
Last Answer : (C) Copper
Description : Which of the following is used for removing air bubbles from glass during its manufacture? (1) Fledspar (2) Arsenic oxide (3) Potassium Carbonate (4) Soda Ash
Last Answer : (2) Arsenic oxide
Description : Which of the following is the most widely used insulating material for steam carrying pipelines? (A) Ceramic fibre blanket (B) Glass wool and 85% magnesia (C) Vermiculite (D) Slag wool
Last Answer : (B) Glass wool and 85% magnesia
Description : Clay treatment of petroleum products (A) Decolorizes & stabilises cracked gasoline (B) Desulphurise straight run gasoline & kerosene (C) Adsorb arsenic from feedstock to catalytic reforming (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : Presence of 0.3 to 0.5% arsenic in copper increases its (A) Ductility (B) Malleability (C) Tenacity & hardness (D) Electrical conductivity
Last Answer : (C) Tenacity & hardness
Description : Presence of dissolved impurities of __________ is responsible for the red brownish color of water. (A) Carbonates (B) Bi-carbonates (C) Iron & manganese (D) Arsenic
Last Answer : (C) Iron & manganese
Description : Roasting of metallurgical ores is done mainly to (A) Dehydrate it (B) Sinter the ore (C) Remove CO2 & H2O (D) Remove arsenic & sulphur
Last Answer : (D) Remove arsenic & sulphur
Description : Pick out the wrong statement. (A) Geothermal energy is a non-conventional source of energy (B) Mass is converted into energy in both nuclear fission & fusion reaction (C) Inhalation of mercury vapour is not harmful for human beings (D) Inhalation of arsenic causes cancer
Last Answer : (C) Inhalation of mercury vapour is not harmful for human beings
Description : Does anyone have some suggestions about how to get the last of the candle wax out of a glass or ceramic candle holder?
Last Answer : Hot water does the trick (the holder in its totallity under hot water).
Description : Is it common for the glass ceramic hob (INDESIT) to turn black after a while and then turn red again after a while and so on during the whole cooking process? This is the first use :))
Last Answer : Yes, this is normal. When it heats up to a certain temperature and there is no consumption, it goes out and vice versa.
Description : What benefits might there be if I purchase a ceramic vase instead of a glass one?
Last Answer : Ceramic vases are stronger, but are solid and can't be seen through. It depends on your preference as to which vase is better.
Description : How to clean stains from glass ceramic hob?
Last Answer : How to clean stains from glass ceramic hob? Fashion is for everything, including kitchen appliances. Everyone is accustomed to the fact that the electric stove has black round burners protruding above the surface ... operation, it is worth handling the stove with care, and it will last a long time.
Description : An emf of the order of mV is generated when two solutions of different hydrogen ion concentration are separated by a thin glass wall". This is the working principle of a (A) pH meter (B) Polarimeter (C) Chromatograph (D) Polarograph
Last Answer : (A) pH meter
Description : Ceramic recuperators compared to metallic recuperators for the same duty (A) Are lighter (B) Occupy more space (C) Are less costly (D) Have higher pressure differential between flue gas & air side
Last Answer : (B) Occupy more space
Description : The commonest form of iron & manganese found in ground water as pollutant is in the form of their (A) Carbonates (B) Bi-carbonates (C) Chlorides (D) Sulphides
Last Answer : (B) Bi-carbonates
Description : The main industrial source of emission of hydrogen sulphide air pollutant is (A) Petroleum refineries (B) Coal based thermal power plants (C) Pulp and paper plant (D) Metallurgical roasting & smelting plant
Last Answer : (B) Coal based thermal power plants
Description : Which of the following is not a secondary air pollutant? (A) Ozone (B) Photochemical smog (C) Sulphur dioxide (D) All (A), (B) & (C)
Last Answer : (C) Sulphur dioxide
Description : Iron & manganese present as pollutant in water cannot be removed by (A) Ion exchange process (B) Oxidation followed by settling & filtration (C) Lime soda process or manganese zeolite process (D) Chlorination
Last Answer : (D) Chlorination
Description : Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes (A) Paralysis of muscles & loss of appetite (B) Nervous depression (C) Gastritis and diarrhea (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Pick out the correct statement. (A) Deforestation helps in controlling the green house effect (B) Global warming is detrimental for increase in food productivity and may cause flood and cyclone ( ... natural source of production of SO2 & H2S pollutant (D) Sulphur dioxide causes death by asphyxiation
Last Answer : (B) Global warming is detrimental for increase in food productivity and may cause flood and cyclone
Description : Pick out the wrong statement (A) Low ozone layer thickness in polar regions is due to cold climatic conditions (B) Amount of unburnt hydrocarbons emitted by two stroke petrol engine is more ... can enter the blood stream & the digestive system/ lungs and is responsible for causing Minamata disease
Last Answer : (D) Mercury as a pollutant can enter the blood stream & the digestive system/ lungs and is responsible for causing Minamata disease
Description : __________ plant emits large amount of SO2 as an air pollutant. (A) Nitric acid (B) Sulphuric acid (C) Chlor alkali (D) Iron & steel
Last Answer : (B) Sulphuric acid
Description : The dazed expression on people's faces was caused by (1) the blow to their heads. (2) the heat generated by the blast. (3) The suddenness and extent of damage caused by the impact of the blast. (4) the impact of broken glass and crockery being hurled around in the confusion
Last Answer : (3) The suddenness and extent of damage caused by the impact of the blast
Description : The passage describes (1) the heat and smoke that was generated by the sudden fire. (2) the effect of the blast on unsuspecting hotel guests. (3) the loss of crockery glass and bodies in the accident. (4) the layout
Last Answer : (2) the effect of the blast on unsuspecting hotel guests.
Description : Locomotive boiler tubes are made of __________ alloys. (A) Arsenic copper (B) Magnesium (C) Aluminium (D) Nickel
Last Answer : (A) Arsenic copper
Description : Presence of even 0.005% of __________ in copper makes it highly brittle, rendering it useless for wire-drawing. (A) Oxygen (B) Arsenic (C) Antimony (D) Bismuth
Last Answer : (D) Bismuth
Description : Presence of even very minute amount (say 0.1%) of __________ in copper, reduces its electrical conductivity very seriously. (A) Bismuth (B) Arsenic (C) Antimony (D) Both (B) and (C)
Last Answer : (D) Both (B) and (C)
Description : Fluorosis is caused due to the presence of excessive amount of __________ in drinking water. (A) Mercury (B) Lead (C) Fluoride (D) Arsenic
Last Answer : (C) Fluoride
Description : Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of (A) Carbon (B) Arsenic (C) Lead (D) Sulphur
Last Answer : (B) Arsenic
Description : In the manufacture of H2SO4 , vanadium catalyst as compared to platinum catalyst (A) Gives higher conversion efficiency (B) Has a longer life and is not poisoned by arsenic (C) Handles lower SO2 content gas (7 -10% SO2 ), thus increasing the capital cost of the plant (D) All (A), (B) and (C)
Description : How can arsenic be removed from aqueous waste streams? Often times, ferric chloride is added to such a stream. The ferric chloride aids in the formation
Last Answer : Often times, ferric chloride is added to such a stream. The ferric chloride aids in the formation of floc to agglomerate fine arsenic particles that can then be removed by mechanical means.
Description : How can I treat a waste stream containing both hexavalent chromium and arsenic?
Last Answer : Waste streams that contain these types of mixtures are often treated in two or more reducing tanks. Strong reducing agents such as sodium metabisulfite, sulfur dioxide, and sodium bisulfite are often used.
Description : Ceramic & Porcelain Tile Installation?
Last Answer : form_title=Ceramic & Porcelain Tile Installation form_header=11793 How would you best describe the kind of project this is?*= () Replace existing tile () Repair existing tile () Replace existing non-tile surface () ... going to be placed?*= [] Floor [] Wall [] Tub/Shower [] Countertop [] Backsplash
Description : What are your favourite adult beverages and accompanying snacks?
Last Answer : Scotch with sushi or sashimi.
Description : Picard had Earl Gray, Janeway had Coffee, Sisko had Raktajino. What were Kirk and Archer's beverages of choice?
Last Answer : There is a whole discussion of this on the SYFY channel blog: Ambassador V'lar: Have you tried iced tea? Sub-commander T'pol: I don't care for it. Ambassador V'lar: Captain Archer, ... , Captain Kirk prefers drinks that would scandalize his fellow officers and put him at odds with Federation rules.
Description : Why do people drink hot beverages from cups or mugs, but cold beverages through straws?
Last Answer : Try it, then you will know.
Description : Which keeps beverages cold longer? Crushed ice or cube ice?
Last Answer : Cube ice. Has less surface area.
Description : Whatever happened to the ready availability of sparkling/fizzy water (think Perrier) at retail outlets offering cold bottled beverages?
Last Answer : Here it’s called seltzer water, and it’s in all grocery stores. There are also flavored varieties.
Description : Will drinking a lot of hot coffee or other hot beverages damage your tastebuds?
Last Answer : answer:Damage? If the beverage is hot enough, then yes, your taste buds can be burned and lose sensitivity; you can't sense anything until those nerves grow back. You can also bore' your tastebuds by ... to a particular taste or flavor, and it no longer makes as much of an impression when you eat.
Description : Do you drink alcoholic beverages when you're home and if so, what and how often?
Last Answer : Occasionally Maybe once a month.
Description : Does the human body favor drinking hot-warm drinks versus frozen-cold beverages?
Last Answer : I was told that it takes energy to cool down or warm up liquids that are consumed, and that drinks at body temperature are absorbed faster.
Description : Drinking hot beverages - What is the typical temperature when fluids enter our stomach?
Last Answer : If you make tea with boiling water, figure that by the time you drink it, it’s cooled down (but is still hot) to maybe 150 degrees F? Maybe 130F?
Description : Does an allergy to isopropyl alcohol mean anything about my chances of being allergic to alcoholic beverages?
Last Answer : Pretty much the same name. I wouldn’t worry. I know this because I looked into getting drunk from rubbing alcohol.
Description : Low calorie adult beverages?
Last Answer : Water, on the rocks.Hey you try to get a kid to drink plain water.
Description : What are your favourite hot alcoholic beverages?
Last Answer : I put creme de noyaux in my hot chocolate a lot. It’s a great way to wind down before bed. Course, I do it less in the summer…
Description : How often do you drink alcoholic beverages?
Last Answer : I drink daily and only wine. I guess I would be what you call a functioning alcoholic. tehe he he