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
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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

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 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

What are some disadvantages of hydroelectric power plant?
Last Answer : The disadvantages of the hydroelectric power plant are as follows :The hydroelectric power plant can be developed only where the large quantity of water is available. The hydroelectric ... civil engineering costs may be high.These are some disadvantages of the hydroelectric power plant.
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93 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

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 & 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
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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

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
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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 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

How does Wave Energy Work?
Last Answer : How does Wave Energy Work? There has been a major shift in thinking all around the world on what types of energy we should use. Unfortunately, the world currently runs on fossil fuels such as oil and ... attractive in the next couple of decades. This should lead to a spur in their wide scale use.
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4 views
1 answer
asked
May 9, 2021
by
anonymous

State any four advantages of wind energy.
Last Answer : Advantages of wind energy system: 1. Wind input (energy) is freely available 2. Wind energy is inexhaustible 3. There is no air pollution 4. No fuel transportation cost. 5. No space is required to store ... cost per unit is less and is goes on decreasing day by day. 15. Maintenance cost is less.
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89 views
1 answer
asked
Sep 8, 2018
by
anonymous

Write any two advantages of digital energy meter.
Last Answer : Advantages of Digital Energy Meter: 1) Easy to read. 2) High accuracy 3) High resolution. 4) No frictional losses as there are no moving parts. 5) No requirement for external adjustments. 6) Large ... due to absence of moving parts. 7) Highly efficient. 8) Very much compact. 9) Good reliability.
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91 views
1 answer
asked
Sep 5, 2018
by
anonymous

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

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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249 views
1 answer
asked
May 22, 2020
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 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

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
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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

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

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
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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

How To Make A Wave Bottle
Last Answer : Students will observe water moving in waves. Materials: A 1 liter plastic bottle for each student. Vegetable oil Food coloring Water Paper Pencils Instructions: Give each student a plastic bottle. Ask ... effect waves such as the ocean floor, sandbars, rocky coasts and, of course, the moon.
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7 views
1 answer

How to Stay Cool in a Heat Wave
Last Answer : How to Stay Cool in a Heat Wave A heat wave may last for a few days to a few weeks and may happen with extreme humidity. Though you can't prevent heat waves, there are things you can do to ... your home. There are a lot of alternatives you can do to keep your home and your family heatwave safe.
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9 views
1 answer

Draw single phase full wave mid-point converter for inductive load. Draw input and output waveforms for it.
Last Answer : Circuit Diagram: Waveforms:
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535 views
1 answer
asked
May 21, 2020
by
anonymous

operation of half wave rectifier type AC Voltmeter.
Last Answer : Half-wave Rectifier Voltmeter The d'Arsonval meter movement only responds to the average or dc value of the current through the moving coil. In order to measure alternating ... ) input voltage signal alternating signal needs to be rectified first by using diode rectifier to produce
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269 views
1 answer
asked
Sep 4, 2019
by
anonymous

State the concept of continuous wave RADAR. Sketch its block diagram. State its any two applications.
Last Answer : Concept- Transmission is continuous here, the circulator is used to provide isolation between the transmitter and the receiver. Since transmission is continuous, it would be pointless to use a ... It is used to measurement of relative velocity to distinguish moving target from stationary objects
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108 views
1 answer
asked
Aug 8, 2019
by
anonymous

Justify electromagnetic wave is said to be transverse wave.
Last Answer : Transverse electromagnetic wave:- The electromagnetic waves are oscillations which propagate through free space. In electromagnetic waves the direction of electric field, magnetic field & propagation are ... electric field vector with respect to the surface (i.e. looking at the horizon)
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86 views
1 answer
asked
Aug 4, 2019
by
anonymous

Define : i) Average value ii) RMS value of an AC Wave.
Last Answer : i) Average value: The average value is defined as the average of all instantaneous values during one alternation . That is, the ratio of the sum of all considered instantaneous values to the ... as produced by the alternating current when flowing through the same resistance for the same time.
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387 views
1 answer
asked
Jul 30, 2019
by
anonymous
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Give the operation of single phase full wave bridge controlled converter with RL load with a neat diagram. Also draw its waveform.
Last Answer : Single phase fully control bridge converter with RL load: 1. During positive half cycle of input voltage, T1 and T2 are forward biased and during negative half cycle, T3 and T4 are forward biased. Therefore, T1-T2 ... cycle till the firing of next pair of SCRs as shown in the waveform.
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886 views
1 answer
asked
Jul 25, 2019
by
anonymous

Draw a neat diagram of 1Ф half wave controlled converter with RL load. Give its operation.
Last Answer : Single phase fully controlled half wave converter: The circuit diagram of single-phase half-wave controlled rectifier with RL load and without freewheeling diode is shown in Fig. (a). The SCR T is ... , when again pulse is applied, the SCR is turned on & the above cycle is repeated.
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3.0k views
2 answers
asked
Jul 25, 2019
by
anonymous

Instantaneous value of a sine wave voltage
Last Answer : Instantaneous value of a sine wave voltage
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173 views
1 answer
asked
Jun 11, 2019
by
anonymous

Draw a labeled block diagram of sine wave generator and state function of each block.
Last Answer : Function Generator: This instrument can deliver sine, triangular & square waves with frequency range of 0.01 Hz to 100 kHz. The frequency control network is governed by a frequency ... voltage reaches a predetermined level on the negative slope of the integrator's output voltage.
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385 views
1 answer
asked
Sep 6, 2018
by
anonymous

Explain full wave bridged rectifier with the help of circuit diagram and input output waveform.
Last Answer : 1. In positive half cycle (0 to Π): The end A of the secondary winding becomes positive and end B negative. This makes diode D1 and D4 forward biased while diode D2 and D3 are reverse biased. These two diodes will ... D2 and D3 when it is conducting is as follows. B - D2 - RL - D3 - A
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162 views
1 answer
asked
Sep 5, 2018
by
anonymous

The coefficient of reflection for current wave is
Last Answer : The coefficient of reflection for current wave is 1 or -1
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124 views
1 answer
asked
May 3, 2018
by
anonymous

The velocity of travelling wave through a cable of relative permittivity 36 is
Last Answer : The velocity of travelling wave through a cable of relative permittivity 36 is 0.5 x 108 m/sec
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576 views
1 answer
asked
May 3, 2018
by
anonymous

The fractional-pitch used for eliminating 7th harmonic from the emf wave of an alternator is (A) 2/3 (B) 5/6 (C) 7/8 (D) 6/7
Last Answer : The fractional-pitch used for eliminating 7th harmonic from the emf wave of an alternator is 6/7
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494 views
1 answer
asked
Apr 28, 2018
by
anonymous

The equation of 50 Hz current sine wave having r.m.s. value of 60 A is?
Last Answer : (60*√2)Sin(2π*50*t)
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1.1k views
2 answers
asked
Mar 25, 2018
by
anonymous
