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MCQ on Biomass is Used in the Production of for Students
The kinetic energy of moving air or winds in coastal or hilly areas is harnessed to do mechanical work or generate electricity by using
(a) windmills
(b) generators
(c) electric motors
(d) shafts
Option a – windmills
An enormous amount of energy is being received by the Earth from ……… for 5 billion years and will continue to do so for another 5 billion years.
(a) Oceans
(b) Sun
(c) Earth’s atmosphere
(d) Melting snow
Option b – Sun
The construction of solar cookers or solar heaters is based on the fact that
(a) the black surface absorbs more heat as compared to white objects
(b) spherical reflecting surfaces can be utilized to concentrate solar energy
(c) covering with a glass plate cause increase in temperature to the greenhouse effect
(d) All of these
Option d – All of these
A typical solar cell develops
(a) a potential difference of 0.5-1 V and 0.7 W of electricity
(b) a potential difference of 0.7 V and 0.5 W of electricity
(c) a potential difference of 0.7 V and 1.0 W of electricity
(d) None of these
Option a – a potential difference of 0.5-1 V and 0.7 W of electricity
Solar cells generate a little amount of electricity but are becoming popular because
(a) its raw material Silicon is available in large quantities in India
(b) it can be set up in remote and inaccessible hamlets without laying transmission lines
(c) electricity generated from solar cells can be stored and used when required
(d) All of these
Option d – All of these
Biogas plants are gaining popularity in Indian villages because
(a) they produce manures in addition to a clean fuel
(b) provide a clean and cheap method of disposing of animal and agricultural waste
(c) both of these
(d) it is being encouraged by the government
Option c – both of these
The complex compounds are broken down by which of the following organisms?
(a) Aquatic
(b) Aerobic
(c) Anaerobic
(d) Terrestrial
Option c – Anaerobic
A hydrogen bomb and a Nuclear bomb are based on (respectively)
(a) fission and fusion
(b) fusion and fission
(c) fission only
(d) fusion only
Option b – fusion and fission
Improvement in the technology for using conventional sources of energy is becoming popular
(a) more energy is being extracted in the usable form
(b) pollution is being restricted
(c) sewage is also getting disposed
(d) All of these
Option d – All of these
Destructive distillation of wood produces.
(a) charcoal that burns without flames and is smokeless
(b) volatile substances that can be used for the manufacture of other products
(c) harmless water
(d) All of these
Option d – All of these
The energy crisis is due to
(a) depletion of the sources
(b) excessive use
(c) problems in unearthing the resources
(d) All of these
Option d – All of these
The wind is caused due to
(a) uneven heating of the earth’s surface
(b) rotation of the earth
(c) local conditions
(d) All of these
Option a – uneven heating of the earth’s surface
Storage of water in reservoirs for hydropower plants causes socio-economic problems besides
(a) destruction of agricultural land and habitation
(b) destruction of large ecosystems
(c) rotting of vegetation under anaerobic conditions to harmful greenhouse methane gas
(d) All of these
Option d – All of these
The chain reaction is a
(a) fission reaction
(b) sustainable reaction.
(c) fusion reaction
(d) both (a) and (b)
Option d – both (a) and (b)
The energy equivalent of 1 amu is
(a) 139 Me V
(b) 931 Me V
(c) 235 Me V
(d) 92 Me V
Option b – 931 Me V
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