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

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

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

Last Answer : In coal fired power plants, electrostatic precipitators are fitted to control emission of A. `NO_(x)` B. CO C. SPM D. `SO_2`

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

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What particle sizes are electrostatic precipitators used to remove?

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

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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

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

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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

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

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

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

Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous fertiliser plant) employs a/an __________ bed gasifier. (A) Entrained (B) Moving (C) Fixed (D) Fluidised

Description : Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous fertiliser plant) employs a/an __________ bed gasifier. (A) Entrained (B) Moving (C) Fixed (D) Fluidised

Last Answer : (A) Entrained

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.

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 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

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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

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Last Answer : (C) Electrostatic precipitator

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

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

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 

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:

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

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

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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

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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  

Maintain 850 OC for 1 hour (soaking time).  Cool the material to 60 OC in 4 hours. a) Calculate the efficiency of the furnace, if the specific heat of steel is 0.12 kcal/kgOC and fuel oil consumption per batch is 1400 litres.  GCV of fuel oil - 10200 kcal/kg,  Cost of fuel oil - Rs. 46,000/kL,  Sp. gr. of fuel oil - 0.92. b) Due to high cost of oil, the plant management decides to convert to a lower operating cost LPG fired furnace lined on the inside with ceramic fibre insulation and with an operating efficiency of 80%, for same requirement. The investment towards installation of the new furnace is Rs. 50 lakhs. Calculate the Return on Investment, if the plant operates two batches per day and 250 days in a year.  Cost of LPG - Rs. 75/kg,  GCV of LPG - 12500 kcal/kg.

Description : In a heat treatment shop, steel components are heat-treated in batches of 80 Tons. The  heat treatment cycle is as follows;  Increase temperature from 30 OC to 850 OC in 3 hours.  ... efficiency of 80%, for same requirement. The investment towards installation of  the new furnace is Rs. 50

Last Answer : Quantity of steel treated per batch - 80 Tons a. Efficiency of Furnace: Useful heat supplied to steel - 80000 x 0.12 x (850 - 30)   = 7872000 kcal/batch .1 mark Total heat ... = Rs. 64400/batch Efficiency of new LPG furnace - 80% Heat supplied in new LPG furnace - 7872000/0.8

According to U. S. Coast Guard Regulations (46 CFR), the motor controller for a submersible electric motor driven bilge pump should be installed _____________. A. in the shaft alley B. at the submersible bilge pump C. above the uppermost continuous deck D. at the engine room emergency control panel

Description : According to U. S. Coast Guard Regulations (46 CFR), the motor controller for a submersible electric motor driven bilge pump should be installed _____________. A. in the shaft alley B. at the submersible bilge pump C. above the uppermost continuous deck D. at the engine room emergency control panel

Last Answer : Answer: C

A voltmeter located on a control panel has been operating correctly for six months, suddenly burns out. After removing it, it is found that neither side of the meter has been grounded. When installing the new meter it should be __________. A. grounded to the negative side B. connected to a large resistor between the positive side and the ground C. installed exactly as the old installation D. grounded to the positive side

Description : A voltmeter located on a control panel has been operating correctly for six months, suddenly burns out. After removing it, it is found that neither side of the meter has been grounded. When ... side and the ground C. installed exactly as the old installation D. grounded to the positive side

Last Answer : Answer: C

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.

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

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.

Pick out the wrong statement. (A) Atoms with same number of nucleons but different number of protons are called isobars (B) Atoms with same number of protons but different number of nucleons are called isoters (C) Out of α, β, and γ-rays, the one having maximum penetration power are γ-rays (D) The product formed by emission of α-particle has mass number less by 4 units than the parent nuclide

Description : Pick out the wrong statement. (A) Atoms with same number of nucleons but different number of protons are called isobars (B) Atoms with same number of protons but different number of nucleons are ... product formed by emission of α-particle has mass number less by 4 units than the parent nuclide

Last Answer : (B) Atoms with same number of protons but different number of nucleons are called isoters

A ultra-super critical boiler generates less emission per……of power output. a) Kilowatt b) Watt c) Megawatt d) Metric horse power

Description : A ultra-super critical boiler generates less emission per……of power output. a) Kilowatt b) Watt c) Megawatt d) Metric horse power

Last Answer : c) Megawatt

Optical power is sometimes called __________. ∙ A. Radiant emission ∙ B. Radiant power ∙ C. Radiant flux ∙ D. Radiant optics

Description : Optical power is sometimes called __________. ∙ A. Radiant emission ∙ B. Radiant power ∙ C. Radiant flux ∙ D. Radiant optics

Last Answer : C. Radiant flux