Which is the source of chlorofluorocarbons? (A) Thermal power plants (B) Automobiles (C) Refrigeration and Air-conditioning (D) Fertilizers

Which is the source of chlorofluorocarbons? (A) Thermal power plants (B) Automobiles (C) Refrigeration and Air-conditioning (D) Fertilizers
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(C) Refrigeration and Air-conditioning 
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Which of the following is a source of emissions leading to the eventual formation of surface ozone as a pollutant? (A) Transport sector (B) Refrigeration and Air conditioning (C) Wetlands (D) Fertilizers

Description : Which of the following is a source of emissions leading to the eventual formation of surface ozone as a pollutant? (A) Transport sector (B) Refrigeration and Air conditioning (C) Wetlands (D) Fertilizers

Last Answer : (A) Transport sector 

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

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

One of the anthropogenic sources of gaseous pollutants chlorofluorocarbons (CFCs) in air is (A) Cement Industry (B) Fertiliser industry (C) Foam industry (D) Pesticide industry

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Which of the following is a source of methane? (A) Wetlands (B) Foam Industry (C) Thermal Power Plants (D) Cement Industry

Description : Which of the following is a source of methane? (A) Wetlands (B) Foam Industry (C) Thermal Power Plants (D) Cement Industry

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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

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

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In mega cities of India, the dominant source of air pollution is (A) transport sector (B) thermal power (C) municipal waste (D) commercial sector

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

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

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

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What is the function of the evaporation in a refrigeration or air conditioning system?

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

Air refrigeration cycle is used in (a) domestic refrigerators (b) commercial refrigerators (c) air conditioning (d) gas liquefaction

Description : Air refrigeration cycle is used in (a) domestic refrigerators (b) commercial refrigerators (c) air conditioning (d) gas liquefaction

Last Answer : Ans: d

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 : 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

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 : 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

Nitrogen oxides produced from the emission of automobiles and power plants are the source of fine air borne particles which lead to

Description : Nitrogen oxides produced from the emission of automobiles and power plants are the source of fine air borne particles which lead to

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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

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

The arsenic pollution in ground water in Bangladesh and parts of India is due to (A) industrial waste (B) thermal power plants (C) natural sources (D) agricultural practices

Description : The arsenic pollution in ground water in Bangladesh and parts of India is due to (A) industrial waste (B) thermal power plants (C) natural sources (D) agricultural practices

Last Answer : (C) natural sources

Maximum soot is released from (A) Petrol vehicles (B) CNG vehicles (C) Diesel vehicles (D) Thermal Power Plants

Description : Maximum soot is released from (A) Petrol vehicles (B) CNG vehicles (C) Diesel vehicles (D) Thermal Power Plants

Last Answer : (D) Thermal Power Plants

Consider the following statements 1. Large cold storage plants use ammonia as refrigerant while domestic refrigerators use chlorofluorocarbons. 2. Ammonia can be liquefied at ambient temperatures and at low pressures. 3. Chlorofluorocarbons are air pollutants. The correct statement(s) is/are: (a) 1 and 3 only (b) 2 and 3 only (c) 1, 2 and 3 (d) 3 only

Description : Consider the following statements 1. Large cold storage plants use ammonia as refrigerant while domestic refrigerators use chlorofluorocarbons. 2. Ammonia can be liquefied at ambient temperatures and at low pressures. 3. Chlorofluorocarbons are ... 3 only (b) 2 and 3 only (c) 1, 2 and 3 (d) 3 only

Last Answer : Ans:(a)

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

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

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

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

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 in death by asphyxiation (C) Sulphur dioxide is the main pollutant emitted from the exhaust of petrol driven automobiles (D) Decomposition of plants containing chlorophyll is a natural source of carbon monoxide in atmosphere

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

Highest source of air pollution in the world is – (1) Automobiles (2) Industries (3) Household wastes (4) Aircraft

Description : Highest source of air pollution in the world is – (1) Automobiles (2) Industries (3) Household wastes (4) Aircraft

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Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the (A) Industrial chimney exhaust (B) Automobiles exhaust (C) Photochemical reaction in polluted atmosphere (D) Burning of domestic fuel

Description : Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the (A) Industrial chimney exhaust (B) Automobiles exhaust (C) Photochemical reaction in polluted atmosphere (D) Burning of domestic fuel

Last Answer : (B) Automobiles exhaust

Highest source of air pollution in the world is (1) Automobiles (2) Industries (3) Household wastes (4) Aircraft

Description : Highest source of air pollution in the world is (1) Automobiles (2) Industries (3) Household wastes (4) Aircraft

Last Answer : Automobiles

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

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Last Answer : (B) Coal based thermal power plants

Addition oxcessive amounts of heat to a lake is referred to as - (1) Refrigeration effect (2) Green House effect (3) Thermal pollution (4) Heat Bloom

Description : Addition oxcessive amounts of heat to a lake is referred to as - (1) Refrigeration effect (2) Green House effect (3) Thermal pollution (4) Heat Bloom

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Addition oxcessive amounts of heat to a lake is referred to as : (1) Refrigeration effect (2) Green House effect (3) Thermal pollution (4) Heat Bloom

Description : Addition oxcessive amounts of heat to a lake is referred to as : (1) Refrigeration effect (2) Green House effect (3) Thermal pollution (4) Heat Bloom

Last Answer : Thermal pollution

Consider the following statements and select the correct answer from the code given below: i. Rajasthan receives the highest solar radiation in the country. ii. India has the fifth largest installed wind power in the world. iii. The maximum amount of wind power is contributed by Tamil Nadu. iv. The primary source of uranium in India is Jaduguda. Codes: (A) i and ii (B) i, ii and iii (C) ii and iii (D) i and iv

Description : Consider the following statements and select the correct answer from the code given below: i. Rajasthan receives the highest solar radiation in the country. ii. India has the fifth largest installed wind power in the world. iii. The ... (A) i and ii (B) i, ii and iii (C) ii and iii (D) i and iv

Last Answer : Answer: D

Which one of the following non-conventional energy sources can be exploited most economically? (A) Solar (B) Wind (C) Geo-thermal (D) Ocean Thermal Energy Conversion (OTEC)

Description : Which one of the following non-conventional energy sources can be exploited most economically? (A) Solar (B) Wind (C) Geo-thermal (D) Ocean Thermal Energy Conversion (OTEC)

Last Answer : Answer: A

The chief source for the production of nitrogeneous fertilizers is : (1) Ammonia (2) Nitric acid (3) Nitrogen (4) Nitrogen dioxide

Description : The chief source for the production of nitrogeneous fertilizers is : (1) Ammonia (2) Nitric acid (3) Nitrogen (4) Nitrogen dioxide

Last Answer : (1) Ammonia Explanation: Nitrogen fertilizers are often made using the Haber-Bosch process which uses natural gas for the hydrogen and nitrogen gas from the air at an elevated temperature and ... is used as a feedstock for other nitrogen fertilizers, such as anhydrous ammonium nitrate and urea.

The chief source for the production of nitrogeneous fertilizers is : (1) Ammonia (2) Nitric acid (3) Nitrogen (4) Nitrogen dioxide

Description : The chief source for the production of nitrogeneous fertilizers is : (1) Ammonia (2) Nitric acid (3) Nitrogen (4) Nitrogen dioxide

Last Answer : Ammonia

What is the value of maximum COP in case of absorption refrigeration, if refrigeration provided is at temperature, TR (where, T1 and T2 are source & surrounding temperatures respectively.)? (A) TR/(T2 - TR) × (T1 - T2 )/T1 (B) TR/(T2 - TR) × T1 /(T1 - T2 ) (C) TR/(T1 - TR) × (T1 - T2 )/T1 (D) None of these

Description : What is the value of maximum COP in case of absorption refrigeration, if refrigeration provided is at temperature, TR (where, T1 and T2 are source & surrounding temperatures respectively.)? (A) TR/(T2 - TR) (T1 - T2 )/T1 (B) TR ... T1 /(T1 - T2 ) (C) TR/(T1 - TR) (T1 - T2 )/T1 (D) None of these

Last Answer : (A) TR/(T2 - TR) × (T1 - T2 )/T1

With regard to a word processing software, the process of combining static information in a publication together with variable information in a data source to create one merged publication is calle d( A) Electronic mail (B) Data sourcing (C) Mail merge (D) Spam mail

Description : With regard to a word processing software, the process of combining static information in a publication together with variable information in a data source to create one merged publication is calle d( A) Electronic mail (B) Data sourcing (C) Mail merge (D) Spam mail

Last Answer : (C) Mail merge 

Which of the following is not the critical feature of qualitative research ? (A) Actual settings are the direct source of data. (B) Data take the forms of words or pictures. (C) Seeking to establish relationships among measured social facts. (D) Researcher becomes immersed in the situation, present or past related to the phenomena.

Description : Which of the following is not the critical feature of qualitative research ? (A) Actual settings are the direct source of data. (B) Data take the forms of words or pictures. (C) Seeking to ... social facts. (D) Researcher becomes immersed in the situation, present or past related to the phenomena. 

Last Answer : Write S if the statement pertains to the strength of a quantitative research, W if it's a weakness. 1. It can be costly, difficult and time-consuming. 2. It is objective and provides ... It filters out external factors. 5. The numerical data can be analyzed in a quick and easy way.

Which of the following is the largest source of water pollution in major rivers of India? (A) Untreated sewage (B) Agriculture run-off (C) Unregulated small scale industries (D) Religious practices

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Last Answer : (A) Untreated sewage

Inside rural homes, the source/sources of Nitrogen Oxide Pollution may be: (a) Unvented gas stoves (b) Wood stoves (c) Kerosene heaters Choose the correct code: (A) (a) and (b) only (B) (b) and (c) only (C) (b) only (D) (a), (b) and (c)

Description : Inside rural homes, the source/sources of Nitrogen Oxide Pollution may be: (a) Unvented gas stoves (b) Wood stoves (c) Kerosene heaters Choose the correct code: (A) (a) and (b) only (B) (b) and (c) only (C) (b) only (D) (a), (b) and (c)

Last Answer : Answer: D

Which of the following is an open source software? (A) MS Word (B) Windows (C) Mozilla Firefox (D) Acrobat Reader

Description : Which of the following is an open source software? (A) MS Word (B) Windows (C) Mozilla Firefox (D) Acrobat Reader

Last Answer : Mozilla Firefox

Which of the following is not open source software? (A) Apache HTTP server (B) Internet explorer (C) Fedora Linux (D) Open office

Description : Which of the following is not open source software? (A) Apache HTTP server (B) Internet explorer (C) Fedora Linux (D) Open office

Last Answer : (B) Internet explorer

The mode of communication that involves a single source transmitting information to a large number of receivers simultaneously, is called (A) Group Communication (B) Mass Communication (C) Intrapersonal Communication (D) Interpersonal Communication

Description : The mode of communication that involves a single source transmitting information to a large number of receivers simultaneously, is called (A) Group Communication (B) Mass Communication (C) Intrapersonal Communication (D) Interpersonal Communication

Last Answer : (B) Mass Communication

The primary source of organic pollution in fresh water bodies is (A) run-off urban areas (B) run-off from agricultural forms (C) sewage effluents (D) industrial effluents

Description : The primary source of organic pollution in fresh water bodies is (A) run-off urban areas (B) run-off from agricultural forms (C) sewage effluents (D) industrial effluents

Last Answer : (C) sewage effluents

The second most important source after fossil fuels contributing to India’s energy needs is (A) Solar energy (B) Nuclear energy (C) Hydropower (D) Wind energy

Description : The second most important source after fossil fuels contributing to India’s energy needs is (A) Solar energy (B) Nuclear energy (C) Hydropower (D) Wind energy

Last Answer : (C) Hydropower

Which one of the following is not a source of data? (A) Administrative records (B) Population census (C) GIS (D) Sample survey

Description : Which one of the following is not a source of data? (A) Administrative records (B) Population census (C) GIS (D) Sample survey

Last Answer : (C) GIS

Which one of the following is the oldest Archival source of data in India? (A) National Sample Surveys (B) Agricultural Statistics (C) Census (D) Vital Statistics

Description : Which one of the following is the oldest Archival source of data in India? (A) National Sample Surveys (B) Agricultural Statistics (C) Census (D) Vital Statistics

Last Answer : Answer: C

Identify the correct sequence of the following: (A) Source, channel, message, receiver (B) Source, receiver, channel, message (C) Source, message, receiver, channel (D) Source, message, channel, receiver

Description : Identify the correct sequence of the following: (A) Source, channel, message, receiver (B) Source, receiver, channel, message (C) Source, message, receiver, channel (D) Source, message, channel, receiver

Last Answer : Answer:D An information source, which produces a message. A transmitter, which encodes the message into signals A channel, to which signals are adapted for transmission A receiver, which 'decodes' (reconstructs) the message from the signal. A destination, where the message arrives. 

Communication becomes circular when (A) the decoder becomes an encoder (B) the feedback is absent (C) the source is credible (D) the channel is clear

Description : Communication becomes circular when (A) the decoder becomes an encoder (B) the feedback is absent (C) the source is credible (D) the channel is clear

Last Answer : Answer: A Circular (contextual) Discussion is conducted in a circular manner, telling stories and developing a context around the main point, which is often unstated be cause the listener will get the point after I give them all the information. There is a high reliance on context.

Which one of the following is the most comprehensive source of population data? (A) National Family Health Surveys (B) National Sample Surveys (C) Census (D) Demographic Health Surveys

Description : Which one of the following is the most comprehensive source of population data? (A) National Family Health Surveys (B) National Sample Surveys (C) Census (D) Demographic Health Surveys 

Last Answer : (C) Census

Which of the following statements is correct ? (A) Objectives of research are stated in first chapter of the thesis (B) Researcher must possess analytical ability (C) Variability is the source of problem (D) All the above

Description : Which of the following statements is correct ? (A) Objectives of research are stated in first chapter of the thesis (B) Researcher must possess analytical ability (C) Variability is the source of problem (D) All the above 

Last Answer : (D) All the above

Level C of the effectiveness of communication is defined as: (A) channel noise (B) semantic noise (C) psychological noise (D) source noise

Description : Level C of the effectiveness of communication is defined as: (A) channel noise (B) semantic noise (C) psychological noise (D) source noise 

Last Answer : (A) channel noise

What Based on the content of most fertilizers name two elements other than carbon that are found in compounds in plants?

Description : What Based on the content of most fertilizers name two elements other than carbon that are found in compounds in plants?

Last Answer : Nitrogen and phosporus

"Mulching" is the term used for the process of (a) Covering the roots of plants with loose material, dung, etc. in order to protect them from soil erosion etc. (b) Breaking down big pieces of soil into small ones (c) Transplanting of paddy seedlings (d) Nitrogen fixation of soil by use of fertilizers

Description : "Mulching" is the term used for the process of (a) Covering the roots of plants with loose material, dung, etc. in order to protect them from soil erosion etc. (b) Breaking down big pieces ... into small ones (c) Transplanting of paddy seedlings (d) Nitrogen fixation of soil by use of fertilizers

Last Answer : Ans: (a)