Renewable Energy Question & Answers September 2, 2021 By Wat Electrical Leave a Comment This article lists 100 Renewable Energy MCQs for engineering students. All the Renewable Energy Questions & Answers given below includes solution and link wherever possible to the relevant topic. Renewable sources of energy are also called exhaustible sources of energy. This energy refers to all the limitless energy sources present in nature such as the sun, water, wind, waves, earth are few examples of renewable energy sources. Renewable energy is generated from sources that naturally replenish themselves and never run out and over 80% of total energy is consumed by humans. However the renewables are the fastest-growing source of energy in the world, example wood is a wonderful form of renewable biomass energy but if we use too much, it leads to deforestation. 1). Which one of the following energy uses windmills for mechanical power? Solar energy Biomass and biofuel Hydropower Wind power Hint 2). Which one of the following energy uses solar thermal electricity and solar heating? Solar energy Biomass and biofuel Hydropower All of the above Hint 3). ________________ are the renewable energy resources Solar Wave Wind All of the above Hint 4). _______________ are the non-renewable energy resources Nuclear energy Fossil fuels Both a and b None of the above Hint 5). What are the advantages of solar power? Sunlight is free Doesn’t produce the greenhouse effect Both a and b None of the above Hint 6). What is the source of solar energy? Wind Waves Sunlight All of the above Hint 7). Which one of the following resources is sustainable? Renewable resources Non-renewable resources Both a and b None of the above Hint 8). What are the advantages of biomass? Renewable Versatile Both a and b None of the above Hint 9). What is the source of tidal energy? Movement of seawater Movement of tide Sunlight Wind Hint 10). The hydropower uses ____________ Irrigation Watermills Domestic lifts All of the above Hint 11). What are the advantages of non-renewable energy resources? Affordable Abundant Cost-effective All of the above Hint 12). What is the source of wind energy? Wind Waves Sunlight All of the above Hint 13). Which one of the following resources is an environmental friend? Renewable resources Non-renewable resources Both a and b None of the above Hint 14). ___________ resources are recyclable Renewable resources Non-renewable resources Both a and b None of the above Hint 15). Which one of the following resources has more durability? Renewable resources Non-renewable resources Both a and b None of the above Hint 16). The power density of gas is _____________ 200-2,000 W/m^2 4-5 W/m^2 4-7 W/m^2 4-10 W/m^2 Hint 17). The renewable energy resources has ____________ Low carbon emission High carbon emission Very high carbon emission Doesn’t have carbon emission Hint 18). What are the advantages of wind energy? Renewable and free Operating life is long Not too expensive All of the above Hint 19). The renewable energy resources are _____________ Pollution-free Has high maintenance cost Both a and b None of the above Hint 20). The fossil fuels are ______________ Non-renewable resources Easy to get and easy to transport Burning produces smog All of the above Hint 21). Which one of the following energy resources produces radioactive waste? Solar Nuclear Wind All of the above Hint 22). The wind and water energy resources are ___________ Renewable Doesn’t produce air pollution Both a and b None of the above Hint 23). What is the source of wave energy? Movement of seawater Movement of tide Sunlight Wind Hint 24). What are the advantages of hydro energy? Cheap to operate Renewable Not intermittent All of the above Hint 25). The non-renewable energy resources has ______________ High carbon emission Low Very low Doesn’t have carbon emission Hint Renewable Energy Important MCQ's with Hints 26). Which one of the following energy resources produces air pollution? Solar Wind Water None of the above Hint 27). The biomass energy resources requires ______________ Large area of farmland Produces smoke Both a and b None of the above Hint 28). What is the source of hydropower? Flowing power Wind Sunlight All of the above Hint 29). What are the advantages of renewable energy? Easily available Easily generated Low maintenance cost All of the above Hint 30). The power density of coal is _____________ 200-2,000 W/m^2 100 to 1,000 W/m^2 4-7 W/m^2 0.5 to 0.6 W/m^2 Hint 31). _____________ sources of energy is also called as exhaustible sources of energy Renewable resources Non-renewable resources Both a and b None of the above Hint 32). What is the source of biomass energy? Wind Sunlight Animal waste None of the above Hint 33). _____________ sources of energy is also called as inexhaustible sources of energy Renewable resources Non-renewable resources Both a and b None of the above Hint 34). ______________ energy is a primary source Wind Hydrogen Both a and b None of the above Hint 35). The renewable sources are _______________ Dilute Unreliable Both a and b None of the above Hint 36). The acid rain PH level is between ____________ 1-2 2-3 3-4 None of the above Hint 37). Which one of the following damages the ozone layer? CFCS Aerosols Freons All of the above Hint 38). The non-renewable energy resources are ___________ Not pollution-free Not environment friendly Cost is high All of the above Hint 39). Which one of the following is not a primary source? Hydrogen Crude oil Wind All of the above Hint 40). What is the unit of energy yield ratio? Mole Ohm Dimensionless None of the above Hint 41). ____________ are the type of energy resources based on origin Fossil fuels, solar, nuclear Wind, ocean wave, ocean thermal Biomass, tidal, geothermal, hydro energy All of the above Hint 42). ____________ are the type of energy resources based on industries Coal Gasoline Both a and b None of the above Hint 43). ____________ are the examples of commercial energy Electricity Coal, natural gas Oil, lignite All of the above Hint 44). The power density of geothermal heat renewable energy source is _______________ 0.1KW/m^2 0.00006KW/m^2 1KW/m^2 10KW/m^2 Hint 45). What are the effects of acid rain? Health problems Decay of building materials Killing of wildlife All of the above Hint 46). What is the standard form of LNG? Liquefied Natural Gas Liquefied Nuclear Gas Liquefied Natural or Nuclear Gas None of the above Hint 47). The power density of solar energy is ___________ 0 to 1KW/m^2 1 to 10KW/m^2 10 to 15KW/m^2 20 to 30KW/m^2 Hint 48). The unit of one langley is equal to _______________ 1 cal/cm2.day 10 cal/cm2.day 20 cal/cm2.day 30 cal/cm2.day Hint 49). The solar power is expressed in ____________ KW/m^2 W/m^2 KW/m^2 or W/m^2 None of the above Hint 50). ____________ are the examples of non-commercial energy Firewood Threshing Crushing sugarcane All of the above Hint Renewable Energy MCQs for Interviews 51). What is the standard form of PAHs? Polycyclic Aromatic Hydrocarbons Polyethylene Aromatic Hydrocarbons Polystyrene Aromatic Hydrocarbons None of the above Hint 52). The energy storage are of ________________ types One Two Three Four Hint 53). What is the standard form of STE? Solar Thermal Energy Sun Thermal Energy Solar Temporary Energy None of the above Hint 54). What is the standard form of CSP? Concentrated Solar Power Concentrated Sun Power Common Solar Thermal None of the above Hint 55). The solar collectors are categorized into ____________ One Two Three Four Hint 56). What are the advantages of flat plate collectors? Requires less maintenance No tracking of sun Low water temperature is achieved All of the above Hint 57). The power density of wind energy source is _______________ 0.1KW/m^2 0.00006KW/m^2 <3 KW/m^2 10KW/m^2 Hint 58). What are the advantages of concentrating collector over flat collector? Efficiency increases at high-temperature Used for high-temperature applications Thermal losses are less All of the above Hint 59). What are the applications of solar air heaters? Heating green-houses Heating buildings Drying agriculture produce and lumber All of the above Hint 60). What are the applications of flat plate collectors? Drying applications Residence heating Solar cookers for domestic cooking All of the above Hint 61). The ratio of the surface of the collector receiving light divided by the total surface of the collector is known as ______________ Reflective loss factor Shadow factor Cosine loss factor None of the above Hint 62). The effective hours of solar collectors is between __________ 9 A.M to 5 P.M 2 A.M to 5 A.M 1 A.M to 6 A.M None of the above Hint 63). The ratio of solar radiation surfaces divided by solar radiation at focus on surfaces of collector is known as _____________ Reflective loss factor Shadow factor Cosine loss factor Concentration ratio Hint 64). The power density of wave energy source is _______________ 0.1KW/m^2 0.002KW/m^2 1KW/m^2 <100 KW/m^2 Hint 65). What is the standard form of TOMPs? Toxic Organic Macro Pollutants Toxic Organic Micro Pollutants Toxic inorganic Macro Pollutants None of the above Hint 66). What is the standard form of CST? Concentrated Solar Thermal Concentrated Sun Thermal Common Solar Thermal None of the above Hint 67). What is the standard form of DESS? Distributed Energy System Distributed Energy Storage System Distributed Energy System Storage None of the above Hint 68). What are the advantages of flywheel over battery? Long cycle life Easy power management High energy storage capacity per unit of weight and volume All of the above Hint 69). The ratio of Ah capacity remaining in the battery divided by rated Ah capacity is known as the ____________ State of charge of the battery Shadow factor Cosine loss factor None of the above Hint 70). What is the standard form of SAPS? Stand Alone Power System Solar Stand Alone Power System Static Stand Alone Power System None of the above Hint 71).The electrochemical batteries are categorized into _________________ One Two Three Four Hint 72). The fixed speed systems are ______________ Simple Inexpensive electrical system Both a and b None of the above Hint 73). The variable speed system has ______________ transient torque High Very high Low Medium Hint 74). The ratio of generator electrical capacity divided by rotor swept are is known as ___________ State of charge of the battery Shadow factor Cosine loss factor Specific rated capacity Hint Read more about Generators 75). In the wind power industry _______________ stops the rotor in emergencies Gearbox Brake Generator None of the above Hint Renewable Energy Exam Questions and Answers 76). ______________ are the components of wind power system Electrical generator Sensors & control Shaft with mechanical gear All of the above Hint 77). Which one of the following is a stand-alone PV application? Solar water pumping Battery charging Both a and b None of the above Hint 78). The PV power systems are categorized into _________________ One Two Three Four Hint 79). What is the standard form of DTP? Dynamic Tidal Power Distributed Tidal Power Dynamic Thermal Power None of the above Hint 80). ____________ are the different types of technologies that are used to generate electricity Direct stream geothermal plant Flash steam power plant Binary cycle power plants All of the above Hint 81). For geothermal resources, the flash steam water plants are available in the ___________ range 1 to 5MW 10 to 50MW 5 to 15MW 5 to 100MW Hint 82). The pyrolysis process efficiency depends on ______________ Heating rate, pyrolysis temperature Duration of biomass in the reactor Composition and size of biomass All of the above Hint 83). The digesters are categorized into _____________ One Two Three Four Hint 84). The _____________ biomasses are used for production of ethanol Cellulose containing Starch containing Sugar containing All of the above Hint 85). The scattering by the atmosphere is categorized into ____________ One Two Three Four Hint 86). The liquid flat plate collector is a _________ type of solar collector Non-concentrating Focus type Non-focus type None of the above Hint 87). The modified flat plate collector is a ____________ type of solar collector Non-concentrating Focus type Non-focus type None of the above Hint Read more about Solar Inverter 88). The circular Fresnel lens cone is a _______________ type of solar collector Non-concentrating Focus type Non-focus type Point focus Hint 89). The fixed mirror solar concentrator is a ________ concentrating solar collector Non-concentrating Focus type Non-focus type Point focus Hint 90). Which one of the following types of solar collector is simple in construction? Non-concentrating Concentrating Both a and b None of the above Hint 91). Based on the temperature ranges the _____________ are the types of solar collectors Low-temperature systems High-temperature systems Medium-temperature systems All of the above Hint 92). The ratio of useful heat gain by solar radiation incident on the collector is known as _____________ Flat plate collector efficiency Solar collectors Shadow factor None of the above Hint 93).The power density of tidal renewable energy source is _______________ 0.1KW/m^2 0.002KW/m^2 1KW/m^2 10KW/m^2 Hint 94). What is the standard form of VOCs? Volatile Organic Compounds Volatile Organic Carbons Volatile Inorganic Compounds None of the above Hint 95). Which one of the following is an example of non-conventional energy? Fossil fuel Hydro resources Solar All of the above Hint 96). Which one of the following is an example of conventional energy? Nuclear Biomass Solar All of the above Hint 97). The power density of solar (concentrating) is _____________ 1-10 W/m^2 4-5 W/m^2 4-7 W/m^2 4-10 W/m^2 Hint 98). The fossil fuels is an example for _______________ Renewable resources Non-renewable resources Both a and b None of the above Hint 99). The power density of wood is _____________ 200-2,000 W/m^2 4-5 W/m^2 4-7 W/m^2 0.5 to 0.6 W/m^2 Hint 100). What are the disadvantages of renewable energy? High installation cost Weather dependency Noise caused by wind energy All of the above Hint Time's up
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