Description : Which is the source of chlorofluorocarbons? (A) Thermal power plants (B) Automobiles (C) Refrigeration and Air-conditioning (D) Fertilizers
Last Answer : (C) Refrigeration and Air-conditioning
Description : The major source of the pollutant gas, carbon mono-oxide (CO), in urban areas is (A) Thermal power sector (B) Transport sector (C) Industrial sector (D) Domestic sector
Last Answer : (B) Transport sector
Description : Surface Ozone is produced from (A) Transport sector (B) Cement plants (C) Textile industry (D) Chemical industry
Last Answer : (D) Chemical industry
Description : Identify the air pollutant in urban areas which irritates eyes and also respiratory tract of human beings. (A) Particulate matter (B) Oxides of nitrogen (C) Surface ozone (D) Carbon monoxide
Last Answer : (C) Surface ozone
Description : In mega cities of India, the dominant source of air pollution is (A) transport sector (B) thermal power (C) municipal waste (D) commercial sector
Last Answer : (A) transport sector
Description : Which of the following is a source of methane? (A) Wetlands (B) Foam Industry (C) Thermal Power Plants (D) Cement Industry
Last Answer : Answer: A
Description : Which of the following is not a source of pollution in soil? (A) Transport sector (B) Agriculture sector (C) Thermal power plants (D) Hydropower plants
Last Answer : (D) Hydropower plants
Description : Irritation in eyes is caused by the pollutant (A) Sulphur di-oxide (B) Ozone (C) PAN (D) Nitrous oxide
Last Answer : Answer: C
Description : Pick out the wrong statement. (A) Catalytic converter is fitted in automobiles to reduce carbon monoxide concentration in exhaust emissions (B) Inhalation of pollutant carbon monoxide results ... D) Decomposition of plants containing chlorophyll is a natural source of carbon monoxide in atmosphere
Last Answer : (C) Sulphur dioxide is the main pollutant emitted from the exhaust of petrol driven automobiles
Description : Which one of the following is not a matter a global concern in the removal of tropical forests ? (A) Their ability to absorb the chemicals that contribute to depletion of ozone layer ... , moisture content and reflectivity. (D) Their contribution to the biological diversity of the planet.
Last Answer : (A) Their ability to absorb the chemicals that contribute to depletion of ozone layer.
Description : Which of the following pollutants is not emitted from the transport sector? (A) Oxides of nitrogen (B) Chlorofluorocarbons (C) Carbon monoxide (D) Poly aromatic hydrocarbons
Last Answer : (B) Chlorofluorocarbons
Description : What is the function of the evaporation in a refrigeration or air conditioning system?
Last Answer : The three main functions of the evaporator are to:a. absorb heat from the medium being cooled.b. allow the heat to boil off the liquid refrigerant to a vaporc. allow the heat to superheat the refrigerant vapor
Description : Air refrigeration cycle is used in (a) domestic refrigerators (b) commercial refrigerators (c) air conditioning (d) gas liquefaction
Last Answer : Ans: d
Description : The benchmarking parameter for air conditioning equipment is a) kW/Ton of Refrigeration b) kW/ kg of refrigerant handled c) kcal/m3 of chilled water d) Differential temperature across chiller
Last Answer : kW/Ton of Refrigeration
Description : The benchmarking parameter for air conditioning equipment is a) kW/Ton of Refrigeration b) kW/ kg of refrigerant handled c) kcal/m3 of chilled water d) Differential temperature across chiLLER
Description : India's contribution to total global carbon dioxide emissions is about: (A) ~15% (B) ~3% (C) ~6% (D) ~10%
Description : In terms of total CO2 emissions from a country, identity the correct sequence: (A) U.S.A. > China > India > Russia (B) China > U.S.A. > India > Russia (C) China > U.S.A. > Russia > India (D) U.S.A. > China > Russia > India
Last Answer : (B) China > U.S.A. > India > Russia
Description : The population of India is about 1.2 billion. Take the average consumption of energy per person per year in India as 30 Mega Joules. If this consumption is met by carbon based fuels and the rate of ... tons (B) 540 million metric tons (C) 5400 million metric tons (D) 2400 million metric tons
Last Answer : (B) 540 million metric tons
Description : Which of the following nations has the maximum per capita emissions of carbon di-oxide? (A) China (B) Japan (C) USA (D) India
Last Answer : (C) USA
Description : Ecological footprint represents (A) area of productive land and water to meet the resources requirement (B) energy consumption (C) CO2 emissions per person (D) forest cover
Last Answer : (A) area of productive land and water to meet the resources requirement
Description : The most dangerous pollutant in vehicular emissions is A. CO B. SO2 C. CO2 D. O3
Last Answer : ANS: A
Description : The dominant source of pollution due to oxides of nitrogen (NOx) in urban areas is (A) Road trAns:port (B) Commercial Sector (C) Energy use in industry (D) Power plants
Last Answer : (B) Commercial Sector
Description : In the recently launched Air Quality Index in India, which of the following pollutants is not included? (A) Chlorofluorocarbons (B) Carbon monoxide (C) Fine particulate matter (D) Ozone
Last Answer : (A) Chlorofluorocarbons
Description : Main pollutant of the Indian coastal water is (A) oil spill (B) municipal sewage (C) industrial effluents (D) aerosols
Last Answer : (C) industrial effluents
Description : Which of the following set of statements reflects the basic characteristics of teaching ? Select the correct alternative from the codes : (i) Teaching is the same as training. (ii) There is no difference between instruction and conditioning ... (vi) (C) (ii), (iii) and (v) (D) (i), (iv) and (vi)
Last Answer : Answer: B
Description : Chief air pollutant which is likely to deplete ozone layer is
Last Answer : Chief air pollutant which is likely to deplete ozone layer is A. sulphur dioxide B. carbon ... . carbon monoxides D. nitrogen oxides and fluorocarbons
Description : The most serious air pollutant causing health hazard is – (1) Sulphur dioxide (2) Carbon monoxide (3) Ozone (4) Nitrogen oxide
Last Answer : (1) Sulphur dioxide Explanation: Sulphur dioxide (SO2) is considered as the most serious single air pollutant causing health hazard, obstructing breathing. It always leads to airways inflammation, ... , pulmonary oedema, heart failure and circulatory collapse. It is also responsible for acid rain.
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 : Chief air pollutant which is likely to deplete ozone layer is a) Sulphur dioxide b) Carbon dioxide c) Carbon monoxide d) Nitrogen oxides and Fluorocarbons.
Last Answer : d) Nitrogen oxides and Fluorocarbons
Description : The most serious air pollutant causing health hazard is (1) Sulphur dioxide (2) Carbon monoxide (3) Ozone (4) Nitrogen oxide
Last Answer : Sulphur dioxide
Description : The Earth Summit held in Rio de Janeiro in 1992 was called (a) for immediate steps to discontinue use of CFCs that were damaging the ozone layer (b) to reduce CO2 emissions and global ... utilisation of its benefits (d) to assess threat posed to native species by invasive weed species.
Last Answer : (c) for conservation of biodiversity and sustainable utilisation of its benefits
Description : Which country are World’s leading producer of fertilizers? -Do You Know?
Last Answer : India is the top country by NPK fertilizers production in the world. As of 2018, NPK fertilizers production in India was 4.27 million tonnes that accounts for 24.58% of the world's NPK fertilizers production.
Description : In which type of industries the public sector units play a dominant role? A. petro chemical B. fertilizers C. steel industries D. all of the above
Last Answer : D. all of the above
Description : Explain the importance of mixed fertilizers in agricultural sector.
Last Answer : Importance of mixed fertilizer The mixed fertilizers typically consist of two or more elements of nitrogen, phosphorous and potassium (NPK) for promoting the nutritional growth of plants and yield ... nutrients Use of mixed fertilizers results in reduction of labor cost as it can easily apply
Description : Which of the following pollutants can cause cancer in humans ? (A) Pesticides (B) Mercury (C) Lead (D) Ozone
Description : The smog in cities in India mainly consists of (A) Oxides Of sulphur (B) Oxides of nitrogen and unburnt hydrocarbons (C) Carbon monoxide and SPM (D) Oxides of sulphur and ozone
Last Answer : (B) Oxides of nitrogen and unburnt hydrocarbons
Description : Kyoto Protocol is related to (A) Ozone depletion (B) Hazardous waste (C) Climate change (D) Nuclear energy
Last Answer : (C) Climate change
Description : Nagoya Protocol is related to (A) Climate change (B) Ozone depletion (C) Hazardous waste (D) Biodiversity
Last Answer : (D) Biodiversity
Description : The main precursors of winter smog are (A) N2O and hydrocarbons (B) NOx and hydrocarbons (C) SO2 and hydrocarbons (D) SO2 and ozone
Last Answer : (C) SO2 and hydrocarbons
Description : Carbon monoxide is a pollutant, which causes (A) Respiratory disease (e.g. asthma) (B) Asphyxiation (suffocation) leading to death (C) Retardation in crop growth (D) Damage to building materials like marble
Last Answer : (B) Asphyxiation (suffocation) leading to death
Description : Which of the following emissions in the exhaust gas of an I.C. engine causes the formation of photochemical smog? (A) Nitrogen oxides (B) Hydrocarbons (C) Both 'a' & 'b' (D) Carbon monoxide
Last Answer : (C) Both 'a' & 'b'
Description : Identify the correct sequence of energy sources in order of their share in the power sector in India: (A) Thermal > nuclear > hydro > wind (B) Thermal > hydro > nuclear > wind (C) Hydro > nuclear > thermal > wind (D) Nuclear > hydro > wind > thermal
Last Answer : (B) Thermal > hydro > nuclear > wind
Description : The first Indian Satellite for serving the educational sector is known as: (A) SATEDU (B) INSAT - B (C) EDUSAT (D) INSAT - C
Last Answer : Answer: C GSAT-3, also known as EDUSAT, was a communications satellite which was launched on 20 September 2004 by the Indian Space Research Organisation. EDUSAT is the first Indian satellite ... intended to meet the demand for an interactive satelliteba sed distance education system for the country.
Description : The pollutant responsible for ozone holes is - (1) CO2 (2) SO2 (3) CO (4) CFC
Last Answer : (4) CFC Explanation: Chlorofluorocarbons (CFCs) have been held responsible for the depletion of ozone layer. The manufacture of CFCs has been phased out under the Montreal Protocol, and they are being replaced with other products such as HFCs.
Description : Ozone is (A) A primary pollutant (B) A secondary pollutant (C) Impervious to ultra-violet rays (D) Both (B) and (C)
Last Answer : (D) Both (B) and (C)
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 : The pollutant responsible for ozone holes is _____. (1) CO2 (2) SO2 (3) CO (4) CFC
Last Answer : CFC
Description : Unnecessary and frequent applications of varnish to the generator windings to repair defective insulation will result in ____________. A. heavy coatings of varnish interfering with heat dissipation B. ... of the rectifier assembly D. a built-up of varnish without changing generator operation
Description : Consider the following statements about the soils of India : [IAS 2004] 1. High temperature during most of the year retards formation of humus 2. Soils which have humus require regular application of chemical fertilizers to remove nitrogen ... ) 1 and 2 (b) 1, 3 and 4 (c) 2 and 3 (d) 2 and 4
Last Answer : Ans: (b)
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