In coal fired power plants, electrostatic precipitators are fitted to control emission of

In coal fired power plants, electrostatic precipitators are fitted to control emission of
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In coal fired power plants, electrostatic precipitators are fitted to control emission of A. `NO_(x)` B. CO C. SPM D. `SO_2`
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In a coal-fired power plant, electrostatic precipitators are installed to control the emission of

Description : In a coal-fired power plant, electrostatic precipitators are installed to control the emission of

Last Answer : In a coal-fired power plant, electrostatic precipitators are installed to control the emission of A. `CO` B. `SO_(2)` C. `NO_(8)` D. SPM

In a coal fired power plant electrostatic precipitators are installed to control emission of (a) NOX (b) SPM (c) CO (d) SO2

Description : In a coal fired power plant electrostatic precipitators are installed to control emission of (a) NOX (b) SPM (c) CO (d) SO2

Last Answer : (b) SPM

In large thermal power stations very fine particulates present in flue gas are removed by (A) Wet scrubber (B) Bag filter (C) Electrostatic precipitators (D) Dust catcher

Description : In large thermal power stations very fine particulates present in flue gas are removed by (A) Wet scrubber (B) Bag filter (C) Electrostatic precipitators (D) Dust catcher

Last Answer : (C) Electrostatic precipitators

Defines electrostatic precipitators. -SST 10th

Description : Defines electrostatic precipitators. -SST 10th

Last Answer : Electrostatic precipitators have been the air pollution control technology of choice for power generation and industrial processes throughout the world. ESPs are highly efficient dust collectors with proven collection ... enter the unit and are then removed by the influence of an electric field.

Cyclone collectors and electrostatic precipitators are meant ofor controlling

Description : Cyclone collectors and electrostatic precipitators are meant ofor controlling

Last Answer : Cyclone collectors and electrostatic precipitators are meant ofor controlling A. Radioactive pollution B. ... C. Noise pollution D. Water pollution

Cyclone collectors and electrostatic precipitators are meant for controlling

Description : Cyclone collectors and electrostatic precipitators are meant for controlling

Last Answer : Cyclone collectors and electrostatic precipitators are meant for controlling A. Sewage pollution B. ... C. Pesticide pollution D. Natural pollution

Electrostatic precipitators are employed to remove particulate pollutants of the size of

Description : Electrostatic precipitators are employed to remove particulate pollutants of the size of

Last Answer : Electrostatic precipitators are employed to remove particulate pollutants of the size of A. `5-20 mum ` B. `20 - ... mum` and larger D. `0.5-5.0 mum`.

What particle sizes are electrostatic precipitators used to remove?

Description : What particle sizes are electrostatic precipitators used to remove?

Last Answer : A. Duprey conducted testing on an electrostatic precipitator in a pulp mill. The results were published in a National Air Pollution Control Administration report called “Compilation of air Pollutant Emission Factors”.

Catalytic converters are fitted in to automobiles for reducing emission of poisonous gases, having expensive metals namely.

Description : Catalytic converters are fitted in to automobiles for reducing emission of poisonous gases, having expensive metals namely.

Last Answer : Catalytic converters are fitted in to automobiles for reducing emission of poisonous gases, having ... Lead and Cadmium D. copper and cadmium

Catalytic converters are fitted into automobiles to reduce emission of harmful gases. Catalytic converters change un burnt hydrocarbons into

Description : 10. Catalytic converters are fitted into automobiles to reduce emission of harmful gases. Catalytic converters change un burnt hydrocarbons into (a) carbon dioxide and water (b) carbon mono oxide (c) methane (d) carbon dioxide and methane.

Last Answer : (a) carbon dioxide and water

The hyperboloid cooling towers are often associated __ a. with nuclear power plants b. Used in some coal-fired plants c. In some large chemical and other industrial plants. d. All of the above.

Description : The hyperboloid cooling towers are often associated __ a. with nuclear power plants b. Used in some coal-fired plants c. In some large chemical and other industrial plants. d. All of the above.

Last Answer : All of the above

Hyperbolic cooling towers used in a) Coal-fired power plant b) Nuclear plants c) Thermal power plant d) All of these

Description : Hyperbolic cooling towers used in a) Coal-fired power plant b) Nuclear plants c) Thermal power plant d) All of these

Last Answer : d) All of these

Electricity generated by coal-fired power plants i the United States in 1990 was approximately what percentage of the entire electricity produced by all sources of power production?

Description : Electricity generated by coal-fired power plants i the United States in 1990 was approximately what percentage of the entire electricity produced by all sources of power production? w) 10 percent x) 25 percent y) 55 percent z) 90 percent

Last Answer : ANSWER: Y -- 55 PERCENT

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

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

Assuming the US reduces coal use due to negative externalities, should the US restrict coal exports to China and India who seek to use and build more coal-fired electrical generating plants?

Description : Assuming the US reduces coal use due to negative externalities, should the US restrict coal exports to China and India who seek to use and build more coal-fired electrical generating plants?

Last Answer : Coal jobs are already being lost at an alarming rate. If we don’t mine it, it will come from other coal exporting countries. I don’t see any benefit to hurting ourselves in a futile attempt to manage other countries.

The problematic pollutants in emission of coal based generating plants __________.

Description : The problematic pollutants in emission of coal based generating plants __________.  (A) SO₂ (B) NOx (C) CO (D) All of the above

Last Answer : The problematic pollutants in emission of coal based generating plants __________.  (A) SO₂ (B) NOx (C) CO (D) All of the above

A ultra-super critical boiler technology is today the option of choice for most new……. fired power stations. a) Coal b) Natural gas c) Biogas d) Oil

Description : A ultra-super critical boiler technology is today the option of choice for most new……. fired power stations. a) Coal b) Natural gas c) Biogas d) Oil

Last Answer : a) Coal

Which of the following is considered a renewable resource? w) Coal fired power plant x) Hydroelectric dam y) Combustion turbine facility z) Nuclear fission power plant

Description : Which of the following is considered a renewable resource? w) Coal fired power plant x) Hydroelectric dam y) Combustion turbine facility z) Nuclear fission power plant 

Last Answer : ANSWER: X -- HYDROELECTRIC DAM

Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of (A) Less air for combustion (B) Correct amount of air for combustion (C) Too much air for combustion (D) Pulverised coal in boilers

Description : Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of (A) Less air for combustion (B) Correct amount of air for combustion (C) Too much air for combustion (D) Pulverised coal in boilers

Last Answer : (C) Too much air for combustion

Can coal-fired electricity generation have zero ghg emissions?

Description : Can coal-fired electricity generation have zero ghg emissions?

Last Answer : answer:The honest answer is no'. But it depends who's doing the talking. The coal lobby says they capture the CO2 and sequester it (Stick it someplace else). They ignore all the energy spent to dig it ... burning stove is close to net zero. If I allow my oil heat to kick on I am increasing GHGs.

Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent. (A) 10-15 (B) 25-30 (C) 45-50 (D) 65-70

Description : Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent. (A) 10-15 (B) 25-30 (C) 45-50 (D) 65-70

Last Answer : (B) 25-30

In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of (A) Transportation of coal (B) Drying of coal (C) Combustion of coal by supplying it around the burner (D) Preheating the primary air

Description : In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of (A) Transportation of coal (B) Drying of coal (C) Combustion of coal by supplying it around the burner (D) Preheating the primary air

Last Answer : (C) Combustion of coal by supplying it around the burner

Which of the following will be unsuitable for dust cleaning from flue gas at 400°C from a pulverised coal fired boiler? (A) Multicyclones (B) Bag filter (C) Wet scrubber (D) Hydrocyclones

Description : Which of the following will be unsuitable for dust cleaning from flue gas at 400°C from a pulverised coal fired boiler? (A) Multicyclones (B) Bag filter (C) Wet scrubber (D) Hydrocyclones

Last Answer : (B) Bag filter

The main function of primary air in pulverised coal fired burner is to (A) Burn CO to CO2 (B) Dry and transport the coal (C) Have proper combustion by supplying it around the burner (D) Preheat the tertiary air used for complete combustion of CO to CO2

Description : The main function of primary air in pulverised coal fired burner is to (A) Burn CO to CO2 (B) Dry and transport the coal (C) Have proper combustion by supplying it around the burner (D) Preheat the tertiary air used for complete combustion of CO to CO2

Last Answer : (B) Dry and transport the coal

In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of (A) Transportation of coal (B) Drying of coal (C) Combustion of coal by supplying it around the burner (D) Preheating the primary air

Description : In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of (A) Transportation of coal (B) Drying of coal (C) Combustion of coal by supplying it around the burner (D) Preheating the primary air

Last Answer : (C) Combustion of coal by supplying it around the burner

The maximum emission of pollutants from fuel sources in India is caused by : (A) Coal (B) Firewood (C) Refuse burning (D) Vegetable waste product

Description : The maximum emission of pollutants from fuel sources in India is caused by : (A) Coal (B) Firewood (C) Refuse burning (D) Vegetable waste product

Last Answer : Answer: B  As many as 115,000 people die in India each year from coal-fired power plant po llution, costing the country about $4.6 billion, according to a groundbreaking new study released ... generation in India and its usage is continuously increasing to meet the energy demands of the country.

The main purpose of control rod in a nuclear reactor is to control the (A) Chain reaction and hence the power output by regulating the number of secondary neutrons causing fission (B) Emission of hazardous radiation (C) Conversion of fissile material into fertile material (D) Velocity of the secondary neutrons

Description : The main purpose of control rod in a nuclear reactor is to control the (A) Chain reaction and hence the power output by regulating the number of secondary neutrons causing fission (B) ... radiation (C) Conversion of fissile material into fertile material (D) Velocity of the secondary neutrons

Last Answer : (A) Chain reaction and hence the power output by regulating the number of secondary neutrons causing fission

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

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

Last Answer : Nitrogen oxides produced from the emission of automibiles and power plants are the source of fine air ... C. Wet acid deposition D. Industrial smog.

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

Last Answer : Nitrogen oxides produced from the emission of automobiles and power plants are the source of fine air ... C. Industrial smog D. Wet acid deposition

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

Electrostatic precipitator is used to control the pollution of – (1) air (2) water (3) noise (4) thermal

Description : Electrostatic precipitator is used to control the pollution of – (1) air (2) water (3) noise (4) thermal

Last Answer : (1) air Explanation: An electrostatic precipitator (ESP), or electrostatic air cleaner is a particulate collection device that removes particles from a flowing gas (such as air) using the force of an ... particles from a flowing gas (such as air) using the force of an induced electrostatic charge.

Electrostatic precipitator is used to control — (1) Air pollution (2) Water pollution (3) Solid waste (4) Noise pollution

Description : Electrostatic precipitator is used to control — (1) Air pollution (2) Water pollution (3) Solid waste (4) Noise pollution

Last Answer : (1) Air pollution Explanation: An electrostatic precipitator (ESP), or electrostatic air cleaner is a particulate collection device that removes particles from a flowing has (such as air) using the force ... , and can easily remove fine particulate matter such as dust and smoke from the air stream.

Electrostatic Precipitator is used to control the –

Description : Electrostatic Precipitator is used to control the –

Last Answer : consequent pole

Electrostatic precipitator is used to control – (1) Air pollution (2) Water pollution (3) Solid waste (4) Noise pollution

Description : Electrostatic precipitator is used to control – (1) Air pollution (2) Water pollution (3) Solid waste (4) Noise pollution

Last Answer : Air pollution

Electrostatic precipitator is used to control the pollution of (1) air (2) water (3) noise (4) thermal

Description : Electrostatic precipitator is used to control the pollution of (1) air (2) water (3) noise (4) thermal

Last Answer : air

The freezer in a refrigerator is fitted near the top – (1) to keep it away from hot compressor which is nearer to the bottom (2) because of convenience (3) it facilitates convection currents (4) to minimise power consumption

Description : The freezer in a refrigerator is fitted near the top – (1) to keep it away from hot compressor which is nearer to the bottom (2) because of convenience (3) it facilitates convection currents (4) to minimise power consumption

Last Answer : (3) it facilitates convection currents Explanation: The freezer in a refrigerator is fitted near the top so that it can cool the whole interior by setting up ... compartment temperature excessively causes difficulties in maintaining above-reezing temperature in the refrigerator compartment.

When replacing a power transistor fitted with a heat sink in a circuit, a coating of silicone grease is applied between the transistor case and the heat sink. This is done to ____________. A. lubricate the transistor B. lubricate the heat sink C. aid in the removal of the heat sink D. provide maximum heat transfer

Description : When replacing a power transistor fitted with a heat sink in a circuit, a coating of silicone grease is applied between the transistor case and the heat sink. This is done to ____________. A. lubricate ... the heat sink C. aid in the removal of the heat sink D. provide maximum heat transfer

Last Answer : Answer: D

In case of a pipe exit fitted with a nozzle, the (A) Conversion of kinetic head to pressure head is facilitated (B) Conversion of pressure head to kinetic head is facilitated (C) Power transmitted through the nozzle is maximum, when the head lost due to friction in the pipe is equal to one third of the total supply head (D) Both (B) and (C)

Description : In case of a pipe exit fitted with a nozzle, the (A) Conversion of kinetic head to pressure head is facilitated (B) Conversion of pressure head to kinetic head is facilitated (C) Power transmitted through the nozzle ... in the pipe is equal to one third of the total supply head (D) Both (B) and (C)

Last Answer : (D) Both (B) and (C)

The freezer in a refrigerator is fitted near the top (1) to keep it away from hot compressor which is nearer to the bottom (2) because of convenience (3) it facilitates convection currents (4) to minimise power consumption

Description : The freezer in a refrigerator is fitted near the top (1) to keep it away from hot compressor which is nearer to the bottom (2) because of convenience (3) it facilitates convection currents (4) to minimise power consumption

Last Answer : it facilitates convection currents

Most efficient and suitable dust removal equipment for removal of fly￾ash from flue gas in a thermal power plant is the (A) Gravity settling chamber (B) Cyclone separator (C) Electrostatic precipitator (D) Bag filter

Description : Most efficient and suitable dust removal equipment for removal of fly￾ash from flue gas in a thermal power plant is the (A) Gravity settling chamber (B) Cyclone separator (C) Electrostatic precipitator (D) Bag filter

Last Answer : (C) Electrostatic precipitator

An international treaty known as Montreal Protocol was signed to control emission of:

Description : An international treaty known as Montreal Protocol was signed to control emission of:

Last Answer : An international treaty known as Montreal Protocol was signed to control emission of: A. UV rays B. Ozone C. CFC D. Oxygen

Where is the vehicle emission control label located on a vehicle?

Description : Where is the vehicle emission control label located on a vehicle?

Last Answer : The Vehichle emission control label is usually inside the hood of most vehicles

9. Montreal protocol aims at a) biodiversity conservation b) reduction of ozone depleting substances c) control of water pollution d) control of carbondioxide emission

Description : 9. Montreal protocol aims at a) biodiversity conservation b) reduction of ozone depleting substances c) control of water pollution d) control of carbondioxide emission

Last Answer : a) biodiversity conservation

Explain Evaporative emission control system.

Description : Explain Evaporative emission control system.

Last Answer : EVAP system Operation: When the engine is running, stored fuel vapours in fuel tank are purged from the canister whenever the throttle has opened past the purge port and coolant temperature is above 54 °C. ... The EVAP system is designed to limit maximum vacuum and pressure in the fuel tank.   

Explain any two engine modifications and two fuel modifications to control emission from gasoline engine.

Description : Explain any two engine modifications and two fuel modifications to control emission from gasoline engine. 

Last Answer : Methods used for improving the exhaust emission under the engine design modification are 1. Use of leaner air-fuel ratios: The carburetor may be modified to provide relatively lean air ... Fuel Volatility: Fuel volatility is compromise of high volatility and low volatility to control the pollution

Describe with neat sketch operation of PCV valve under different engine operating condition to control/ emission

Description : Describe with neat sketch operation of PCV valve under different engine operating condition to control/ emission

Last Answer : PCV Valve: It consists of a spring loaded tapered valve for flow control. The crankcase pressure and manifold vacuum act together to close the valve whereas the spring pressure tends to keep it open.( ... at idle and low speed (c)High speed/Load operation (d)Preventing backfire during cranking  

What is the major visible constituent of the exhaust plume from a natural gas-fired power plant? w) carbon dioxide x) carbon monoxide y) smoke z) water

Description : What is the major visible constituent of the exhaust plume from a natural gas-fired power plant? w) carbon dioxide x) carbon monoxide y) smoke z) water 

Last Answer : ANSWER: Z -- WATER 

How do you feel about the expansion of nuclear power as a zero CO2 emission energy alternative?

Description : How do you feel about the expansion of nuclear power as a zero CO2 emission energy alternative?

Last Answer : In general I am in favor of the newer Gen 3 and the future Gen 4 designs. Gen 1 and 2 now in the field are fossils. Yes, there is nuclear waste that we don'[t know how to handle ... never become the utopian Hydrogen society and nuclear waste will continue to fester for tens of thousands of years.

Small amount of gasoline is added to alcohol to a) reduce the emission b) to increase the power output c) to increase the efficiency d) to improve cold weather starting

Description : Small amount of gasoline is added to alcohol to a) reduce the emission b) to increase the power output c) to increase the efficiency d) to improve cold weather starting

Last Answer : Answer: d Explanation: None.