Padaku

1. What is/are the indicator for sustainability?  GDP  Energy efficiency  Energy  Both (a) and (b) 2. Installed capacity for electricity production in India  as on 31.03.17 was  Around 145 GW  Around 226 GW  Around 326 GW  Around 500 GW 3. Global CO2 (Atmospheric CO2) level reported in June, 2017 was:  Around 109 ppm  Around 209 ppm  Around 309 ppm  Around 409 ppm 4. Match the following emissions from the fossil fuels through conventional routes in best possible combination  1(a,e), 2(b,f), 3(c,g), 4(d,h)  1(a,f), 2(b,e), 3(c,g), 4(d,h)  1(a,e), 2(b,f), 3(c,h), 4(d,g)  None of these 5. HHV of the Bituminous coal is:  HHV: 5000-15000 KJ/Kg  HHV: 15000-25000 KJ/Kg  HHV: 25000-35000 KJ/Kg  HHV: 35000-45000 KJ/Kg 6. Which moisture type is an integral part of the coal seam in its natural state, including water in pores but excluding that ...

1. Which factors driving Microgrid  deployment in locations with existing electrical grid infrastructure?  Energy Security  Economic Benefits  Energy Integration  All of the these 2. A localized grouping of electricity generations, energy storages, and loads is termed as  Macro Grid  Traditional Grid  Micro Grid  Virtual Power Plant 3. In a typical AC microgrid which of the following helps to regulate voltage and frequency in the islanded mode of operation?  Diesel Generator  Connected inverter  Grid  PMSG wind 4. By interconnecting two isolated DC grids one may not achieve this  Local energy security  Less reliability  Effective RES utilization   None of the above 5. What is the full form of DR in the context of DC Microgrid?  Delivery Rate  Divide & Rule  Demand Response  None of the above 6. Which one incorporates distrib...

1. The role of ILCs, DGs and SEs respectively in the case of grid connected un-dispatched power mode operation of AC/DC hybrid microgrid is  operates in MPPT, regulate the DC bus, always discharge  Regulates the DC bus, operates in MPPT, always charges  Regulates DC bus, operates in MPPT, charges/discharges  Operates in off MPPT, regulates the DC link voltage, charges/discharges 2. The modern electronic loads when they are connected to the isolated AC microgrid having PV as the single source of energy, the following conversion losses are natural  AC-DC-AC  DC-AC-DC  DC-DC-DC  AC-AC-AC 3. Synchronizing torque comes into operation under all of the following cases except  Frequency difference between two voltages  Phase difference between two voltages  Changing excitation current  None of the above 4. When Induction motor load is connected to the isolated DC Microgrid having wind as the single sourc...

1 Installed capacity of solar power in India till 2016   9.01 GW   10.3 GW    8.45 GW   6.54 GW 2. Example of the second generation solar cell  Silicon Wafer-based solar cell  Advanced thin-film solar cell  Thin-film solar cell  None of the above 3. The conversion efficiency of a polycrystalline silicon solar cell is  12.5-15 %   11-14 %   10-13 %   9-12 % 4. A PV array has the open-circuit voltage 370V, short circuit current 28 A and maximum power is 8kW then find the fill factor  0.66  0.55  0.77  0.88 5. What is the significance of series resistance in solar cell modeling  Represent load resistance   Represent the wire resistance   Represent the top and rare contact resistance   All of the above 6. With increase in solar irradiance level, the cell open circuit voltage (Voc) and short circuit current (Isc) will ...

Data for Q. 1 and Q. 2: Consider a 6.4 kV, three phase overhead feeder having impedance f 0.4 + j0.8 Ω/km. The average power factor of the load connected to the feeder is 0.85. 1. The Kdrop factor of the feeder is    0.01073 % drop / kVA-km  0.00185 % drop / kVA-km  0.00107 % drop / kVA-km  0.01855 % drop / kVA-km 2. The Krise factor of the feeder is   0. 00112 % rise / kVAr-km  0.01954  % rise / kVAr-km  0.00195 % rise / kVAr-km  0.01128 % rise / kVAr-km Data for Q. 3, Q. 4 and Q. 5: In a distribution feeder shown in the following figure, the loads are S1 = 400 kVA, S2 = 500 kVA and S3 = 600 kVA. 3. If the Kdrop factor of the feeder is  0.000147 %drop / kVA-km, the total percent drop from N0 to N3 is.  0.89 %  0.30 %  0.93 %  0.63 % 4. If the total percentage drop from N0 to N4 is 2.5%, then the Kdrop factor of the feeder is  0.001960   % drop / kVA-...

1. The typical voltage level of the primary customer is  66kV  11kV  400V  None of the above 2. Which of the following is not the characteristic of the existing grid  Manual Monitoring  Failures and Blackouts  Self-healing  One way communication 3. In which of the following methods, the data and power both are transferred with the same conductor  Fibre optic communications  Cognitive radio  Power line communication   Cellular communication systems 4. Which of the following may not be a barrier in the smart grid technologies  Lack of Infrastructure  Lack of financial resources  Lack of regulatory framework   Integration of the grid with very small renewable generation 5. According to IRIG B, Time synchronization accuracy requirement is upto  0.5 µs  1 µs  2µs  0.1 µs 6. The boundaries of the customer domain typically consider which type o...