RENEWABLE Flashcards
refers to non-fossilized, biodegradable organic materials originating from naturally-occurring or cultured plants or parts thereof, animals and micro-organisms, including agricultural products, by-products and residues
A. BIOENERGY RESOURCES
B. BIOMASS RESOURCES
C. BIOFUEL RESOURCES
D. ALL OF THE ABOVE
B. BIOMASS RESOURCES
refers to the energy derived from solar radiation that can be converted into useful thermal or electrical energy
A. INSOLATION ENERGY
B. ALBEDO ENERGY
C. SOLAR ENERGY
D. ALL OF THE ABOVE
C. SOLAR ENERGY
refers to the energy that can be derived from wind that is converted into useful electrical or mechanical energy
A. WAVE ENERGY
B. AERO ENERGY
C. WIND ENERGY
D. ALL OF THE ABOVE
C. WIND ENERGY
__________ energy, as a mineral resource, is produced through: (1) natural recharge, where the water is replenished by rainfall and the heat is continuously produced inside the earth; and/or (2) enhanced recharge, where
hot water used in the process is re-injected into the ground to produce more steam as well as to provide additional recharge to the convection system
A. GEOTHERMAL ENERGY
B. GEODETIC ENERGY
C. GEOLOGICAL ENERGY
D. ALL OF THE ABOVE
A. GEOTHERMAL ENERGY
refers to energy systems which convert ocean or tidal current, ocean thermal gradient or wave energy into electrical or mechanical energy
A. TIDAL ENERGY SYSTEM
B. OCEAN ENERGY SYSTEM
C. OTEC
D. ALL OF THE ABOVE
B. OCEAN ENERGY SYSTEM
refers to water-based energy systems which produce electricity by utilizing the
kinetic energy of falling or running water to turn a turbine generator
A. HYDROELECTRIC POWER RESOURCES
B. HYDROPOWER RESOURCES
C. BOTH A & B
D. NONE OF THE ABOVE
D. NONE OF THE ABOVE
NOTE: “Hydroelectric Power Resources” or “Hydropower Resources” refers to water resources found technically feasible for the development of hydropower projects which include rivers, lakes, waterfalls, irrigation canals, springs, ponds, and other water bodies (RA 9513)
refers to facilities which produce electrical and/or mechanical energy and forms of useful thermal energy such as heat or steam which are used for industrial, commercial heating or cooling purposes through the sequential use
of energy
A. THERMOELECTRIC SYSTEM
B. THERMOMECHANICAL SYSTEM
C. CO-GENERATION SYSTEM
D. HYBRID SYSTEM
C. CO-GENERATION SYSTEM
refers to an energy generation system utilizing two or more types of renewable energy sources
A. MULTI-ENERGY SYSTEM
B. COMPOUND SYSTEM
C. CO-GENERATION SYSTEM
D. HYBRID SYSTEM
D. HYBRID SYSTEM
Hybrid System has a minimum of _____ MW or _____ (%) of the annual
energy output provided by the RE component
A. 10 MW; 15% C. 5 MW; 10%
B. 10 MW; 10% D. 5 MW; 15%
B. 10 MW; 10%
refers to the market where the trading of the RE certificates equivalent to an
amount of power generated from RE resources is made
A. Renewable Energy Market
B. Sustainable Energy Market
C. Conventional Energy Market
D. All of the Above
A. Renewable Energy Market
It is a thermal process done in the absence of oxidant. It is also called
destructive distillation.
A. Torrefaction C. Gasification
B. Pyrolysis D. Liquefaction
B. Pyrolysis
An example of gasifier.
A. Downdraft C. Darrieus
B. Kaplan D. Chinese Dome
A. Downdraft
What comprised synthesis gas or producers gas?
A. CH4 and H2
B. CO and H2
C. O2 and H2
D. CO2 and H2
B. CO and H2
CO - during gasification of biomass fuel, it is the primary gas produced;
CO – also produced from agricultural waste which is odorless, tasteless, colorless and flammable
What is the main combustible gas component of biogas?
A. CH4 C. N2
B. H2 D. CO2
A. CH4 (Methane)
________________ is used for converting vegetable oils, animal fats, and greases into fatty acid methyl esters, which are used to produce biodiesel.
A. Saponification
B. Esterification
C. Transesterification
D. All of the Above
C. Transesterification
________________ is where the water is replenished by rainfall and the heat is continuously produced inside the earth
A. Simple Recharge
B. Natural Recharge
C. Artificial Recharge
D. Enhanced Recharge
B. Natural Recharge
________________ is where hot water used in the geothermal process is re-injected into the ground to produce more steam as well as to provide additional recharge to the convection system;
A. Simple Recharge
B. Natural Recharge
C. Artificial Recharge
D. Enhanced Recharge
D. Enhanced Recharge
Geothermal Resources refers to mineral resources, classified as renewable energy resource, in the form of the following:
A. indigenous steam, hot water, and
hot brines
B. steam and other gases, hot water, and hot brine
C. heat or associated energy found in geothermal formations
D. All of the Above
D. All of the Above
According to the International Geothermal Association (IGA), worldwide, the Philippines ranks _____ to the United States in producing geothermal energy.
A. 2nd
B. 3rd
C. 4th
D. 5th
A. 2nd
A geothermal energy project with capacity not exceeding one hundred kilowatts (100kW) is considered as __________.
A. Mega-Scale Project
B. Hecto-Scale Project
C. Pico-Scale Project
D. Micro-Scale Project
D. Micro-Scale Project
This is the energy from the sun, per unit time, received on a unit area of
surface perpendicular to the direction of propagation of the radiation, at the earth’s mean distance from the sun, outside of the atmosphere.
A. 100 W/m2
B. 1,000 W/m2
C. 10,000 W/m2
D. None of the Above
D. None of the Above (1353 W/m2)
It is an instrument used to measure diffuse and direct solar radiation.
A. Pyrnometer
B. Campbell Stokes
C. Pluviometer
D. None of the Above
A. Pyrnometer
It is the device that converts solar radiation directly into electrical energy.
A. Soleil
B. Silicon
C. Semiconductor
D. None of the Above
D. None of the Above (Photovoltaic cells)
The total radiant energy leaving a unit of surface area per unit time, emitted and reflected energy is called ____.
A. Emissivity C. Radiosity
B. Albedo D. None of the Above
C. Radiosity
irrigation system powered by solar energy, using PV technology, which
converts solar energy into electrical energy to run a DC or AC motor-based water pump. It consists of solar PV modules, pump set, electronic controls to operate the pump, the required hardware, and in some cases other items like
inverters and batteries (PNS/BAFS 324:2021)
A. SPIS C. SFR
B. SWIP D. MSP
A (SPIS: Solar Powered Irrigation System)
NOTE: SWIP = Small Water Impounding Project
NOTE: SFR = Small Farm Reservoir
NOTE: MSP = Micro-Scale Project
amount of solar energy received by or projected onto a surface, expressed in Watts per Square Meter (W/m2)
A. Solar Radiance C. Solar Radiation
B. Solar Irradiance D. Solar Flare
B. Solar Irradiance
solar panel assembly of photovoltaic cells mounted in a frame that uses sunlight as a source of energy to generate a DC electricity
A. PV Module C. Solar Panel
B. Solar Module D. PV Panel
A. PV Module
converts DC current from PV module to AC
A. Alternator C. Inverter
B. Converter D. Commutator
C. Inverter
ratio of the input solar power to the PV module and the output power of the inverter/controller
A. PV Rating Ratio
B. PV Performance Ratio
C. Solar Performance Ratio
D. Solar Rating Ratio
B. PV Performance Ratio
the tilt of the PV module with respect to the horizontal plane
A. Ray of Incidence
C. Angle of Depression
B. Tilt Angle
D. Angle of Inclination
D. Angle of Inclination
NOTE: “Ray of Incidence” - the angle with which a ray of sunlight strikes the surface of the PV module,
measured with respect to a line perpendicular to said surface
refers to the construction and installation of a hydroelectric power-generating plant and its auxiliary facilities, such as diversion structure, headrace, penstock, substation, transmission, and machine shop, among others
A. Hydroelectric Power Development
B. Hydropower Development
C. Both A & B
D. None of the Above
C. Both A & B
refers to the hydro power plant generating at most of 100 MW
A. Pico Hydro D. Small Hydro
B. Micro Hydro E. Medium Hydro
C. Mini Hydro F. Large Hydro
E. Medium Hydro
A. Pico Hydro (Power<5kW)
D. Small Hydro (10MW≤Power<25MW)
B. Micro Hydro (5kW≤Power≤100kW)
E. Medium Hydro (25MW≤Power≤100MW)
C. Mini Hydro (100kW<Power<10MW)
F. Large Hydro (Power>100MW)
A turbine used for hydro system wherein pressurized water is converted to a high-speed jet by letting the water pass through a nozzle.
A. Impulse turbine
B. Reaction turbine
C. Cross-flow turbine
D. Mixed-flow turbine
A. Impulse turbine
A turbine for hydro system which runs completely filled with water.
A. Impulse turbine
B. Reaction turbine
C. Cross-flow turbine
D. Mixed-flow turbine
B. Reaction turbine
Also known as Ossberger turbine which is characterized as a cross-flow
turbine
A. Bánki-Michell turbine
B. Francis turbine
C. Kaplan turbine
D. Pelton turbine
A. Bánki-Michell turbine
generate renewable energy by harvesting the heat in ocean water and using that heat to warm liquids with a low boiling point (such as ammonia) so that
steam is produced.
A. OTEC C. Both A & B
B. SWAC D. None of the Above
A. OTEC
NOTE: OTEC = Ocean Thermal Energy Conversion
NOTE: SWAC = Seawater Air-Conditioning
use less fresh water and reduce environmental impact compared to traditional air conditioning methods and when developed in conjunction with OTEC plants, it operates entirely without the use of fossil fuels.
A. OTEC C. Both A & B
B. SWAC D. None of the Above
B. SWAC
________ of the sun’s solar energy is absorbed into the surface of the world’s oceans, and it is replenished daily regardless of weather patterns
A. 50% C. 60%
B. 40% D. 80%
D. 80%
OTEC works following principle of a thermodynamic cycle of ______
employing solar energy from the ocean
A. Diesel C. Rankine
B. Otto D. Carnot
C. Rankine
The 2011 National Renewable Energy Program (NREP) targets __________
of ocean power from 2016 to 2030
A. 70.5 MW C. 57.0 MW
B. 50.7 MW D. 75.0 MW
A. 70.5 MW
it is the theoretical maximum percentage of the kinetic energy of air which a windrotor can convert into mechanical energy
A. 39.5% C. 59.3%
B. 95.3% D. 60%
C. 59.3%
it refers to ratio of the kinetic energy of air that a wind rotor can convert into mechanical energy over the theoretical maximum available from the wind
A. Power coefficient
B. Betz coefficient
C. Torque coefficient
D. Speed coefficient
A. Power coefficient
What component of force is used in savonius windmills?
A. Drag Force C. Side Force
B. Lift Force D. All of the Above
A. Drag Force
This vertical axis windmill has a very low tip speed ratio and power coefficient of less that 0.2. The rotor is usually constructed using a cylindrical tank cut axially into two and installed vertically face to face at an offset position.
A. Savonius C. Darrieus
B. Multibladed D. Kaplan
A. Savonius
This vertical axis windmill has a tip speed ratio between 4 and 8 and a power coefficient that can reach up to a range of 0.2 to 0.4.
A. Savonius C. Darrieus
B. Multibladed D. Kaplan
C. Darrieus
FIT established for Biomass Energy
A. 5.90 PHP/kW-hr
B. 8.53 PHP/kW-hr
C. 6.63 PHP/kW-hr
D. 9.68 PHP/kW-hr
C. 6.63 PHP/kW-hr
Installation Target for Hydro Energy
A. 250 MW C. 50 MW
B. 150 MW D. 200 MW
A. 250 MW
Energy released per unit mass or volume of the biomass when the biomass is completely burned.
A. Heating Value
B. Specific Heat
C. Sensible Heat
D. All of the Above
A. Heating Value
A condition in which the water is condensed out of the combustion products
A. HHV C. Dehydrated
B. LHV D. Vaporized
A. HHV
A condition in which the water in the final combustion products remains as
vapor or steam
A. HHV C. Dehydrated
B. LHV D. Vaporized
B. LHV
