State the advantages and disadvantages of hydroelectric power plant.
Last Answer : Advantages of Hydroelectric power plant:- 1. There is no air pollution and other environmental problems. 2. The fuel (water) is available freely. 3. No fuel transportation cost so; there is ... , this can force the relocation of large numbers of riverside cities, towns, villages & people.
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87 views
1 answer
asked
Sep 8, 2018
by
anonymous

What are the advantages and disadvantages of wave energy?
Last Answer : AdvantagesFree from pollutionAvailable for every timeThe water can reuse as drinking purposeDisadvantageMore costLarge maintenanceDifficult to constructAquatic life get affected
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161 views
2 answers
asked
Dec 19, 2017
by
anonymous

What are the advantages and disadvantages of solar energy?
Last Answer : Free of costRenewable energyInextable solar energyLow energy densityHigh capital costMaintenance cost highDepends on weatherNeed to direction tracking
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120 views
1 answer
asked
Dec 19, 2017
by
anonymous

What are the disadvantages of using solar energy?
Last Answer : High installation costEnergy density is depend on weatherSo it is low Not suitable in all areasMaintenance cost high
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156 views
1 answer
asked
Dec 19, 2017
by
anonymous
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What are the advantages of hydroelectric power?
Last Answer : It is free from pollution It requires less labour to supervision Here water can use again and again
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239 views
2 answers
asked
Dec 19, 2017
by
anonymous

What is the meaning of the word hydroelectric power?
Last Answer : Hydro means water, hydroelectric mean electricity generated from water.
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109 views
1 answer
asked
Dec 19, 2017
by
anonymous

What are the advantages and disadvantages of tidal power?
Last Answer : Free of costPollution freeLong life Less maintenance
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142 views
1 answer
asked
Dec 19, 2017
by
anonymous

What are the criteria for selection of site for hydroelectric power plant?
Last Answer : Following Factors to be kept while site selecting for Hydro power plant: 1. It should be located where high rain fall occurs. 2. A large catchments area must be available to store water. 3. It ... 12. Cost of land should be less. 13. Skilled and unskilled man power should be available nearby.
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2.7k views
1 answer
asked
Jul 24, 2019
by
anonymous

State the purpose of surge tank and spill way in hydroelectric power station.
Last Answer : Surge tank :- A surge tank is the small reservoir or tank. It is open at the top. It is installed near Vale house of turbine. It avoids water hammer effect when load on turbine reduces. (It ... ; during floods etc. In this way spill way avoids damage of dam due to excess pressure of water.
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92 views
1 answer
asked
Sep 8, 2018
by
anonymous

In hydroelectric power plants (1) both operating and initial cost are high (2) both operating and initial cost are low (3) operating cost is low and initial cost is high (4) operating cost is high and initial cost is low
Last Answer : In hydroelectric power plants operating cost is low and initial cost is high
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80 views
1 answer
asked
Apr 29, 2018
by
anonymous

State any two advantages and two disadvantages of nuclear power plant.
Last Answer : Disadvantages of Nuclear Power Plant: - 1. The capital cost of Nuclear power plant is very high as compare to other power plant of same capacity. 2. The erection & ... material could be released into the environment. Causing extensive damage to the mankind,animals and environment.
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167 views
4 answers
asked
Sep 8, 2018
by
anonymous

State any four advantages and four disadvantages of diesel electric power plant.
Last Answer : Advantages of Diesel electric power plant:- 1) The design and layout of Diesel electric power plant is simple. 2) It requires less space. 3) Time required for complete erection of diesel power plant is less ... . 9) The useful life is very short. 10) Availability of fuel in future may be limited.
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122 views
1 answer
asked
Sep 7, 2018
by
anonymous

Write any four advantages and four disadvantages of thermal power plant.
Last Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
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168 views
3 answers
asked
Sep 7, 2018
by
anonymous

Write any two disadvantages of hydro power plant.
Last Answer : Disadvantages of hydro power plant: i) Due to high cost of civil engineering works, the capital cost per kW of hydro plants is considerably higher than that of steam plants. ii) Hydro ... ) Hydro plant reservoir submerges huge areas, uproots large population and creates social and other problems.
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77 views
1 answer
asked
Sep 7, 2018
by
anonymous
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47 views
0 answers
asked
Jan 11, 2020
by
anonymous

State any two disadvantages of one wattmeter method of measurement of 3 phase power.
Last Answer : State any two disadvantages of one wattmeter method of measurement of 3 phase power. Disadvantages of one wattmeter method:- 1. Only used for balanced load 2. It can not be used for ... connection then neutral point must be available 4. Delta connection must be opened to connect current coil.
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1.8k views
1 answer
asked
Sep 6, 2018
by
anonymous

The main disadvantages of having poor power factors are: (A) High cost of station and distribution equipment (B) Poor voltage regulation (C) High energy loss in conductor (D) All of the above
Last Answer : The main disadvantages of having poor power factors are: (A) High cost of station and distribution equipment (B) Poor voltage regulation (C) High energy loss in conductor (D) All of the above
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68 views
1 answer
asked
May 8, 2018
by
anonymous

State the disadvantages of skin effect.
Last Answer : Disadvantages of skin effect:- 1. Full cross section of conductor is not utilized, Therefore effective area of conductor reduces so its resistance increases. 2. Due to increase in resistance, copper ... increases (Since Voltage drop = IR ) 5. So voltage regulation becomes poor (increases)
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250 views
1 answer
asked
May 22, 2020
by
anonymous

State advantages and disadvantages of radial distributor system.
Last Answer : Advantages of radial distributor system: 1. Design of layout is simple. 2. Capital cost & Erecting cost is less as there is only one feeder. 3. Time required for completion of ... maintain supply to consumers when there is maintenance on feeder. 3. Voltage fluctuations are more.
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419 views
1 answer
asked
May 22, 2020
by
anonymous

advantages and disadvantages of ICs.
Last Answer : Advantages of ICs: 1.The physical size of an IC is extremely small (generally thousand times smaller) than that of discrete circuits. 2. The weight of an IC is very less as compared to that of ... is high 3. Power dissipation is limited. 4. ICs are very delicate and need extra care while handling
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88 views
1 answer
asked
Aug 19, 2019
by
anonymous

What are advantages and disadvantages of Mechatronics system?
Last Answer : Advantages of Mechatronics system: High level of integration. Increased functionality and better design. More use of electronics and software instead of mechanical function. Assumes ... Its replacement is difficult, that it is difficult to change old system to new system.
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2.4k views
1 answer
asked
Aug 10, 2019
by
anonymous

State advantages and disadvantages of fiber optic communication
Last Answer : Advantage of fiber optic communication: 1.Greater information capacity/ higher bandwidth OFC's are capable of transmitting several gigabits per second over hundreds of miles allowing millions of ... are not flexible 7.Requiring more protection around the fiber cable compared with copper cable
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2.4k views
1 answer
asked
Aug 8, 2019
by
anonymous

State advantages and disadvantages of continuous wave Radar
Last Answer : Advantages continuous wave RADAR : 1.Single frequency transmission and hence narrow receiver bandwidth 2.Duty cycle is unity, so mean power can be as high as transmitters will permits. 3.Ability ... required for receiver and transmitter. 3.Cannot detect targets crossing its beam at right angles.
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116 views
1 answer
asked
Aug 8, 2019
by
anonymous

State advantages & disadvantages of electromagnetic flow meter.
Last Answer : Advantage: Provides wide linear range. 2) Ability to measure reverses flow. 3) Gives rapid response to flow changes. 4) No obstruction is created to flow. 5) It can handle corrosive as ... and pipe networks with relatively short inside diameters. 3) It is useful for electrically conducting fluid.
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78 views
1 answer
asked
Aug 5, 2019
by
anonymous

List advantages and disadvantages of MEMS.
Last Answer : Advantages : 1. Batch fabrication and hence reduced cost. 2. Reduced size and reduced power ( due to pin size and reduced package volume) 3. High precision and resolution. 4. Reduced ... cannot be loaded with large forces because brittle materials can be fractured easily under high stress.
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72 views
1 answer
asked
Jul 21, 2019
by
anonymous

What are the disadvantages of Open loop control system?
Last Answer : Open loop control system are less reliable. In open loop control system Optimization is not possible. Open loop control system are less accurate.
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109 views
1 answer
asked
Jul 4, 2019
by
anonymous

Write any two disadvantages of ammeter shunts.
Last Answer : Disadvantages of ammeter shunts: 1. Errors are caused because of change in temperature. 2. Most suitable for DC measurement. 3. Power loss takes place.
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167 views
1 answer
asked
Sep 6, 2018
by
anonymous

Write advantages and disadvantages of positive and negative feedback.
Last Answer : Advantages of Positive Feedback: i) Voltage gain increases. ii) No phase shift is provided. iii) Feedback signal and input signal are in phase. iv) Input and Output voltage increases. ... ii) Feedback signal and input signal are out of phase. iii) Input and Output voltage decreases.
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4.2k views
1 answer
asked
Sep 5, 2018
by
anonymous

Explain the advantages and disadvantages of using memory I/O and standard I/O.
Last Answer : Memory mapped I/O and standard I/O are the two methods for communicating microprocessor with peripherals. Processor talks to both memory and peripheral using the same bus.Two ways to talk to a peripheral. ... of standard I/O is no loss of memory addresses to the use as I/O addresses.
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171 views
1 answer
asked
Mar 26, 2018
by
anonymous

What are the advantages and disadvantages of automation?
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108 views
0 answers
asked
Mar 10, 2018
by
anonymous

What are the disadvantages of the linear regulator? how are they overcome in the switching regulator? What is continuous and discontinuous mode switching regulator?
Last Answer : Disadvantages of the linear regulator: Linear regulator waste power in the form of heat. Linear regulator has very low efficiency. Linear regulator cannot be used for the step ... between continuous mode and discontinuous mode switching regulator.
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106 views
1 answer
asked
Feb 11, 2018
by
anonymous

what are the disadvantages of thyristor?
Last Answer : Disadvantages of thyristor The silicon controlled rectifier (SCR) is unidirectional devices, so it can control power only in DC power during positive half cycle of AC supply. Thus only DC power is ... cycle. It cannot be used at higher frequencies. The gate current cannot be negative
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886 views
2 answers
asked
Dec 6, 2017
by
anonymous

What is the definition of wind energy?
Last Answer : Motion of atmosphere of earth is called wind and its kinetic energy is called wind energy
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123 views
1 answer
asked
Dec 19, 2017
by
anonymous

Which countries are using wave energy?
Last Answer : The following countries are using wave energy :GreecePortugalUnited StatesUnited KingdomSpainIsraelSweden
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227 views
1 answer
asked
Dec 19, 2017
by
anonymous

What is the difference between renewable and nonrenewable energy sources?
Last Answer : Renewable energy sources are non-perishable, and Non-renewable energy sources are perishable sources. Non-Renewable energy sources are like coal, oil,nuclear fuel etc. Renewable energy sources are :- wind, solar, tidal, Geo thermal etc.
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323 views
2 answers
asked
Dec 18, 2017
by
anonymous

What are the different sources of renewable energy?
Last Answer : Solar Wind Tidal Geothermal
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126 views
1 answer
asked
Dec 18, 2017
by
anonymous

List the advantages and disadvantages of hydropower.
Last Answer : Hydropower plant Advantages Renewable - Hydroelectric energy is renewable. This means that we cannot use up. However, there's only a limited number of suitable reservoirs where hydroelectric power ... MW under construction. Only one of these projects was started in the last two years.
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38 views
1 answer
asked
Jan 5, 2021
by
anonymous

In a 100 TPD Sponge Iron plant, the sponge iron is fed to the Induction melting furnace, producing molten steel at 88% yield. The Energy consumption details are as follows: Coal Consumption : 130 ... molten steel (product). 3. Total Energy Consumption of Plant in Tons of Oil Equivalent (TOE )
Last Answer : a) Specific Energy Consumption of Induction Melting Furnace Molten Steel Production from the Induction melting furnace per day = 100 x 88/100 = 88 TPD Total Energy Consumption of the Plant = 82400 kWh ... mark c) Total Energy consumption of Plant in ToE = 655864000/107 = 65.586 ToE
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14 views
1 answer
asked
Aug 7, 2021
by
anonymous

The power generation potential in mini hydro power plant for a water flow of 3 m3 /sec with a head of 14 meters and with a system efficiency of 55% is a) 226.6 kW b) 76.4 kW c) 23.1 kW d) none of the above
Last Answer : a) 226.6 kW
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75 views
1 answer
asked
Aug 6, 2021
by
anonymous

The energy consumption and production patterns in a chemical plant over a 9 month period is provided in the table below; Month 1 2 3 4 5 6 7 8 9 Production in Tonnes / month 493 ... and give your inference on the result ? ( consider 9 month data for evaluation for predicted energy consumption)
Last Answer : It is required to use the equations Y= mX + C and nC + mΣX = ΣY cΣX + mΣX2 = ΣXY Month X = Production in Tonnes / month Y =Energy Consumption MWh /month X 2 XY 1 493 78.2 ... 73.7 54756 17240.63 8 239 64.4 57121 15402.96 9 239 72.1 57121 17228.98 3387 665.3 1410683 253221
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10 views
1 answer
asked
Aug 7, 2021
by
anonymous

A manufacturing industry plans to improve its energy performance under PAT through implementation of an energy conservation scheme. After implementation, calculate the Plant Energy Performance (PEP) with 2015-16 as the ... 34,000 T, Reference year (2015-16 ) Energy consumption - 27,200 MWh.
Last Answer : Production factor (PF) = 28750/34000 = 0.846 …………………….1 mark Ref year equivalent energy (RYEE) = Ref Year Energy Use (RYEU) x PF = 27,200 x 0.846= 23011MWh
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7 views
1 answer
asked
Aug 7, 2021
by
anonymous

A manufacturing industry plans to improve its energy performance under PAT through implementation of an energy conservation scheme. After implementation, calculate the Plant Energy Performance (PEP) with 2015-16 as the ... 34,000 T, Reference year (2015-16 ) Energy consumption - 27,200 MWh.
Last Answer : Production factor (PF) = 28750/34000 = 0.846 …………………….1 mark Ref year equivalent energy (RYEE) = Ref Year Energy Use (RYEU) x PF = 27,200 x 0.846= 23011MWh
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20 views
1 answer
asked
Aug 7, 2021
by
anonymous

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
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20 views
1 answer
asked
Aug 7, 2021
by
anonymous

In a manufacturing plant, following data are gathered for a given month: Production - 1200 pieces; specific energy consumption - 1000 kWh/piece; variable energy consumption - 950 kWh/piece. The fixed energy consumption of the plant ... ----- a) 6,000 kWh b)10,000 kWh c) 12,000 kWh d) 60,000 kWh
Last Answer : d) 60,000 kWh
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34 views
1 answer
asked
Aug 6, 2021
by
anonymous

The retrofitting of a variable speed drive in a plant costs Rs 2 lakh. The annual savingsis Rs 0.5 lakh. The maintenance cost is Rs. 5,000/year. The return on investment is a) 25% b) 22.5% c) 24% d) 27.5%
Last Answer : b) 22.5%
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211 views
1 answer
asked
Aug 6, 2021
by
anonymous

Explain construction of biogas plant.
Last Answer : Fixed Roof Biogas Plant Construction It consits of inlet tank, digester and outlet tank. Sluury is prepeared in inlet tank. Mass is digeated in digester. Gas is collected at the top dome. Digested mass ... digester gas can supply useful energy in the form of hot air, hot water or steam.
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56 views
1 answer
asked
Jan 5, 2021
by
anonymous

Why don't they construct giant magnifying lenses to create heat and power?
Last Answer : We already do This is probably what you pictured in your head, but it is exactly the same thing on a very large scale. excerpt Creating and storing power was the easy part. Far trickier was finding a way to deal with the stresses created by “radiation fluxes”
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2 views
1 answer
asked
Mar 5
by
anonymous

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.
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2 views
1 answer
asked
Mar 2
by
anonymous

Is it possible to use our feces to power our homes and cars?
Last Answer : Have you ever smelled the exhaust from a vehicle adapted to run on bio-diesel? It smells kind of nice, like french fries. All I can think is what traffic would smell like if all the vehicles ran on fecal-diesel.
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0 views
1 answer
asked
Feb 14
by
anonymous

Explain the following a) Dry Bulb Temperature and Wet bulb Temperature b) Maximum Demand and Power Factor c) Gross Calorific Value & Net Calorific Value d) 5S & Return of Investment (ROI) e) CUSUM
Last Answer : a) Dry Bulb Temperature and Wet bulb Temperature Dry bulb Temperature is an indication of the sensible heat content of air-water vapour mixtures Wet bulb Temperature is a measure of ... of capital cost. This is a broad indicator of the annual return expected from initial capital investment
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10 views
1 answer
asked
Aug 7, 2021
by
anonymous
