Description : Sour crude means the __________ bearing crude. (A) Asphalt (B) Sulphur compounds (C) Wax (D) Nitrogen compounds
Last Answer : (B) Sulphur compounds
Description : Doctor's solution used for sweetening of petroleum products is (A) Sodium plumbite (B) Sodium sulphite (C) Sodium thiosulphate (D) Lead sulphate
Last Answer : (A) Sodium plumbite
Description : In Hydrofining catalytic desulphurisation process for sweetening of petroleum products, use of hydrogen (A) Enhances the desulphurisation process (B) Minimises coke formation (C) Both (A) and (B) (D) Neither (A) nor (B
Last Answer : (C) Both (A) and (B)
Description : Which of the following theories of origin of petroleum does not explain the presence of nitrogen & sulphur compounds in crude oil? (A) Modern theory (B) Carbide theory (C) Engler theory (D) All (A), (B) and (C
Last Answer : (B) Carbide theory
Description : Removal of light fractions from crude oil is called its (A) Sweetening (B) Dehydration (C) Stabilisation (D) Visbreaking
Last Answer : (C) Stabilisation
Description : Which of the following constituents present in petroleum is responsible for ash formation? (A) Nitrogen compounds (B) Organometallic compounds (C) Sulphur compounds (D) Oxygen compounds
Last Answer : (C) Sulphur compounds
Description : Which adsorbent is used for removing sulphur compounds (S Q, H2S, RSH etc.) removal from coke oven gas in by-products recovery plant? (A) Silica gel (B) Diatomaceous earth (C) Basalt (D) Bog iron (i.e., moist ferric hydroxide)
Last Answer : (D) Bog iron (i.e., moist ferric hydroxide)
Description : Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified oils (A) Cause cholesterol build up and blood clotting (B) Are prone to rancid oxidation (C ... (as their complete removal is very difficult) (D) Have affinity to retain harmful sulphur compounds
Last Answer : (A) Cause cholesterol build up and blood clotting
Description : _______ is one of the product formed during refining of petroleum which is black and sticky solid used for making roads. a) paraffin wax b)asphalt c)kerosene d) gasoline
Last Answer : b)asphalt
Description : Which of the following materials is the chief source of natural organic compounds? w) petroleum x) coal y) natural gas z) carbon dioxide
Last Answer : ANSWER: W -- PETROLEUM
Description : Deoiling is the process of removal of oil from wax. It is done by the __________ process. (A) Solvent extraction (B) Sweating (C) Resettling (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : Most widely and commonly used coagulant for the removal of suspended impurities in water is (A) Bleaching powder (B) Slaked lime (C) Alum (D) Copper sulphate
Last Answer : (C) Alum
Description : Hydrazine is used in water treatment for the removal of (A) Colloidal impurities (B) Dissolved oxygen (C) Turbidity (D) Chlorinous taste
Last Answer : (B) Dissolved oxygen
Description : Specific gravity of a petroleum product gives an indication of its (A) Degree of refinement (B) Hydrocarbon content type (aromatic or paraffinic) (C) Ease of atomisation (D) Sulphur content
Last Answer : (B) Hydrocarbon content type (aromatic or paraffinic)
Description : Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst. (A) Bauxite (B) Fuller’s earth (C) Activated clay (D) All (A), (B) & (C)
Description : Blowdown in a cooling tower (A) Means discarding a small fraction of circulating water to prevent and limit the concentration of salt and impurities (B) Increases the scale forming tendencies of water (C) Is undesirable (D) All (A), (B) & (C)
Last Answer : (A) Means discarding a small fraction of circulating water to prevent and limit the concentration of salt and impurities
Description : Which of the following processes is not an example of adsorption applied to gaseous separations? (A) Recovery of valuable solvent vapors from dilute mixture with air and ... Removal of objectionable odour and impurities from industrial gases (D) Decolouration of yellow glycerine
Last Answer : (D) Decolouration of yellow glycerine
Description : Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher (A) Calorific value (B) Higher C/H ratio (C) Sulphur content (D) Difference in gross & net calorific value
Last Answer : (B) Higher C/H ratio
Description : Aspartame is the name of a product used by diabetic patients as a sweetening agent. It belongs to the class of — (1) Carbohydrates (2) Peptides (3) Polyhydric alcohols (4) Alkaloids
Last Answer : (2) Peptides Explanation: Aspartame is an artificial, nonsaccharide sweetener used as a sugar substitute in some foods and beverages. It is a methyl ester of the aspartic acid/phenylalanine ... more severe conditions, the peptide bonds are also hydrolyzed, resulting in the free amino acids.
Description : Aspartame is the name of a product used by diabetic patients as a sweetening agent. It belongs to the class of— (1) Carbohydrates (2) Peptides (3) Polyhydric alcohols (4) Alkaloids
Last Answer : Peptides
Description : Petrolatum is (A) Same as petroleum ether (B) Petroleum coke (C) A mixture of microcrystalline wax in viscous hydrocarbon liquids (D) None of these
Last Answer : (C) A mixture of microcrystalline wax in viscous hydrocarbon liquids
Description : Sulphur can be utilized by bacteria in the form of a. Organic compounds b. Inorganic compounds c. Elemental compounds d. All of the above
Last Answer : Ans: A
Description : The correct sequence of steps involved in extraction of metal from its ore is a) removal of impurities, purify metal, reduction of ore b) purify metal, removal of impurities, reduction of metal ore . c ... of metal , reduction d) removal of impurities from ore , reduction of ore , refining of metal
Last Answer : d) removal of impurities from ore , reduction of ore , refining of metal
Description : Asphalts are (A) Low molecular weight & low boiling point compounds present in petroleum (B) Desirable in catalytic cracking feedstock, because they produce coke (C) Readily oxidisable and form carbonaceous sludge (D) All (A), (B) & (C)
Last Answer : (C) Readily oxidisable and form carbonaceous sludge
Description : The operation of removal of impurities or clay adhering to iron ores, is known as (A) Dressing (B) Calcination (C) Roasting (D) Smelti
Last Answer : Answer: Option A
Description : Which of the following is the petroleum wax? (1) Bees wax (2) Carnauba wax (3) Paraffin wax (4) Jojoba wax
Last Answer : (3) Paraffin wax Explanation: Waxes are a class of chemical compounds that are plastic (malleable) near ambient temperatures. Characteristically, they melt above 45 °C, (113 °F) to give a ... in organic, non-polar solvents. All waxes are organic compounds, both synthetic and naturally occurring.
Description : Commercial Vaseline is derived from - (1) plant gums (2) coal tar (3) wool wax (4) petroleum
Last Answer : (4) petroleum Explanation: Vaseline is a brand of petroleum jelly based products owned by Anglo-Dutch company Unilever. While Vaseline can be used as a lubricant, it is also a ... insulator for local skin conditions characterized by tissue dehydration. Vaseline helps protect minor cuts and burns.
Description : Commercial Vaseline is derived from (1) plant gums (2) coal tar (3) wool wax (4) petroleum
Last Answer : petroleum
Description : Which of the following is the petroleum wax ? (1) Bees wax (2) Carnauba wax (3) Paraffin wax (4) Jojoba wax
Last Answer : Paraffin wax
Description : Performance number of a liquid fuel is related to its (A) Wax content (B) Spontaneous ignition temperature (C) Knocking tendency (D) Sulphur content
Last Answer : (B) Spontaneous ignition temperature
Description : Bitumen is generally obtained from (A) Organic material (B) Synthetic material (C) Petroleum product (D) Coal
Last Answer : Answer: Option C
Description : In solutizer sweetening process, solutizer solution used is (A) Methanol in Unisol process (B) Naphthenic acid in Mercapsol process (C) Both (A) and (B)
Description : In sweetening process, solutizer agent used with caustic alkali is (A) Potassium isobutyrate (B) Sodium plumbite (C) Methanol (D) Phenol
Last Answer : (A) Potassium isobutyrate
Description : Washing of coal (A) Reduces its ash & sulphur content (B) Improves its coking properties (C) Increase the fusion point of its ash by removing chlorine compounds (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Enriched uranium means that, it contains (A) More than 0.71% of U-235 (B) Only fertile material (C) Only fissile material (D) No impurities
Last Answer : (A) More than 0.71% of U-235
Description : Which of the following is used as a solvent in deasphalting of petroleum products? (A) Furfural (B) Propane (C) Methyl ethyl ketone (D) Liquid sulphur dioxide
Last Answer : (B) Propane
Description : Sulphur content in lighter and heavier petroleum products is generally determined respectively by (A) Lamp method and bomb method (B) Bomb method and lamp method (C) Bomb method and quartz tube method (D) Quartz tube method and lamp method
Last Answer : (B) Bomb method and lamp method
Description : Which of the following is not a sulphur compound present in petroleum? (A) Thiophenes (B) Mercaptans (C) Sulphones (D) Pyrrole
Last Answer : (D) Pyrrole
Description : Which of the following petroleum products contain minimum sulphur? (A) Naphtha (B) Kerosene (C) LSHS (D) Furnace oil
Last Answer : (A) Naphtha
Description : Which of the following fractions of petroleum contains maximum sulphur? (A) Diesel (B) Gasoline (C) Naphtha (D) Atmospheric residue
Last Answer : (D) Atmospheric residue
Description : Ear Wax Removal with Hydrogen Peroxide?
Last Answer : A build-up of ear wax can pose serious health problems, including infection, rupture, and even hearing loss. But did you know that common home remedies actually do more harm than good? Most people attempt ... the ear and wait until it "melts" - then it can be safety and unobtrusively wiped away.
Description : What's the problem with sweetening your own tea at the table?
Last Answer : …Huh. I always ask for unsweetened tea. If all they have is stuff with the sugar already in it, I drink something else. So I’m baffled.
Description : Why do we require artificial sweetening agents?
Last Answer : To reduce calorie intake and to protect teeth from decaying, weneed artificial sweeteners.
Description : Olefins are (A) Saturated hydrocarbons (B) Unsaturated cyclic compounds (hydrocarbons) (C) Present in substantially good quantity in crude petroleum (D) None of these
Last Answer : (D) None of these
Description : Which of the following factors does not govern the mechanism of petroleum formation from organic sources? (A) pH of the soil (B) Bacterial action (C) Heat (D) Pressure
Last Answer : (A) pH of the soil
Description : Sulphur removal by heating of pyrite ore in presence of air is called its (A) Reduction (B) Roasting (C) Calcination (D) Smelting
Last Answer : (B) Roasting
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 : Hydrofining is the most recent and effective method for the (A) Removal of sulphur (B) Improvement of smoke point (C) Reduction of breathing loss (D) Improvement of viscosity index
Last Answer : (A) Removal of sulphur
Description : What is vermiculture? a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste d. Care and management of honey bees for the production of honey and wax.
Last Answer : c. Cultivation of earthworms, for decomposition of organic waste
Description : What is vermiculture? (Agriculture MCQ) a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste