Question : Factors which decide whether the given fuel is a good fuel are
(a) Heat it releases on burning
(c) Smoke produced by it on heating
(b) Availability of the fuel
(d) All of the above
Question : In case of Thermal power plant
(a) Electrical energy is converted into mechanical energy
(c) Heat energy is converted into electrical energy
(b) Heat energy is converted into sound energy
(d) Mechanical energy is converted into electrical energy
Question : Tehri Dam is constructed on the river
(a) Narmada
(c) Ganga
(b) Yamuna
(d) Mahanadi
Question : The largest wind energy farm is established in
(a) Chennai
(c) Madurai
(b) Kanyakumari
(d) Kalpakkam
Question : The value of solar constant is
(a) 1.8kW/m2
(c) 1.4kW/m2
(b) 1.6kW/m2
(d) 1.2kW/m2
Question : The device which converts solar energy into electricity is
(a) Solar cell
(c) Generator
(b) Electric motor
(d) Solar cooker
Question : More amount of heat energy can be produced in a solar cooker by using
(a) A plane mirror
(c) A concave mirror
(b) A convex mirror
(d) A glass plate
Question : In a nuclear fission reaction the mass of the original nucleus is
(a) Just little more than the sum of the masses of the individual products
(b) Just equal to the sum of the masses of the individual products
(c) Just little lesser than the sum of the masses of the individual products
(d) not comparable with individual masses of the products
Question : The working of atom bomb is based on the principle of
(a) Release of energy in Nuclear fusion
(b) Conversion of mechanical energy into electrical energy
(c) Release of energy in Nuclear fission
(d) Conversion of wave l energy into electrical energy
Question : The energy from the hot water springs of the underground used to produce electrical energy that is Geo-thermal energy is operational in
(a) India
(c) Africa
(b) New Zealand
(d) Syria
Question : What is the ultimate source of energy?
(a) Water
(c) uranium
(b) sun
(d) fossil fuel
Question : Tidal energy is harnessed by constructing
(a) Bridge
(c) pipe
(b) dam
(d) road
Question : The energy possessed by huge waves needed to generate electricity is :
(a) Solar energy
(c) potential energy
(b) Kinetic energy
(d) heat energy
Question : The most common material used for making solar cell is
(a) Silicon
(b) magnalium
(c) bronze
(d) aluminium
Question : Heat liberated per gram of a fuel is called :
(a) Calorific value
(b) Mass value
(c) Heating value
(d) both (a) and (C)
Question : SI unit of calorific value is :
(a) J
(b) J/kg
(c) kg
(d) none of these
Question : Which of the following has least calorific value :
(a) alcohol
(b) biogas
(c) wood
(d) coal
Question : Which of the following fuel is different from others ?
(a) Water gas
(b) Coal gas
(c) Producer gas
(d) Coke
Question :Most of the fuels are :
(a) Carbon compounds with sulphur
(b) Nitrogen compounds with carbon
(c) Carbon compounds with hydrogen
(d) None of these
Question : Gobar gas is a
(a) solid fuel
(b) liquid fuel
(c) gas fuel
(d) none of these
Question : Which of the following is not a solid fuel :
(a) coke
(b) coal
(c) charcoal
(d) kerosene
Question : The wind energy map gives information about the :
(a) Cause of wind
(b) Intensity of earth quake
(c) Amount of rainfall
(d) None of these
Question : Energy possessed by flowing water is :
(a) Kinetic energy
(b) Potential energy
(c) Heat energy
(d) None of these
Question : The device used for generating electricity from wind energy is called :
(a) Wind turbine
(b) Wind motor
(c) Wind generator
(d) Wind mill
Question : The chief constituent of biogas is :
(a) carbon dioxide
(b) ethane
(c) methane
(d) hydrogen
Question : Biogas is produced from biomass by :
(a) anaerobic fermentation
(b) fractional distillation
(c) destructive distillation
(d) dry distillation
Question : Ultimate source of heat on the surface of earth is :
(a) solar energy
(b) oceanic energy
(c) wind energy
(d) inner temperature of earth crust
Question : Limitations of solar energy are :
(a) it is not available during night
(b) it is not available uniformly throughout the year
(c) it is not available all the time
(d) all of them
Question : Indirectly solar energy is harnessed as :
(a) wind energy
(b) geothermal energy
(c) hydro energy
(d) Both A and C are correct
Question : The device which harness solar energy directly is :
(a) coal gas plant
(b) natural gas plant
(c) biogas plant
(d) solar cell
Question : The most common material for making solar cells is :
(a) silicon
(b) germanium
(c) selenium
(d) none of these
Question : Which energy is used in solar cells :
(a) electrical
(b) chemical
(c) solar
(d) none
Question : Which of the following is not a form of oceanic energy :
(a) Ocean wave energy
(b) Tidal energy
(c) Ocean thermal energy
(d) Solar energy
Question : The energy available due to the difference in the temperature of water at the surface of the ocean and at deeper levels is called :
(a) tidal energy
(b) wind energy
(c) solar energy
(d) none of these
Question : In a neutral atom ne and np represent number of electrons & protons, then :
(a) ne < np
(b) ne = np
(c) ne > np
(d) None of these
Question : The mass of an α particle is :
(a) Less than sum of the masses of 2 protons & 2 neutrons
(b) Equal to mass of four protons
(c) Equal to mass of four neutrons
(d) Equal to sum of masses of two protons and two neutrons
Question : Number of nucleons in the nucleus, is called :
(a) Mass number
(b) Atomic number
(c) Neutron number
(d) Electron number
Question : Central core of the atom, is called :
(a) Ion
(b) Orbit
(c) Molecule
(d) Nucleus
Question : In nuclear reactions :
(a) Energy is conserved
(b) Charge is conserved
(c) Momentum is conserved
(d) All are correct
Question : Neutron was discovered by :
(a) Rutherford
(b) Anderson
(c) Chadwick
(d) Millikan
Question : A nucleus has 16 neutrons & its mass number is 31. The atomic number of this is :
(a) 47
(b) 31
(c) 15
(d) 16
Question :The approximate temperature of the surface of the sun is
(a) 6000°C
(b) 10,000°C
(c) 3000°C
(d) 30,000°C
Question : One MeV of energy is equivalent to
(a) 1.6 × 1013J
(b) 1.6 × 1019J
(c) 1.6 × 10–13J
(d) 1.6 × 10–19J
Question : Which of the following is a better nuclear fuel ?
(a) Thorium 236
(b) Uranium 235
(c) Neptunium 239
(d) Plutonium 239
Question : Choose the source of energy which is different from others :
(a) Tidal
(b) Sea-wave
(c) OTE
(d) Wind energy
Question : The oceans cover almost ________ percent of the surface of earth with water and act as a vast collector of ______ energy :
(a) 71, chemical
(b) 97, solar
(c) 71, hydro
(d) 17, hydro
Question : Fission is splitting of the nucleus into two nuclei. The fission products have :
(a) the same atomic number
(b) the same atomic mass
(c) lower atomic number
(d) higher atomic mass
Question : The mass number of four different elements a, b, c and d are 2, 35, 125 & 235 respectively. Which of them would provide the most suitable nuclear fission reaction :
(a) c & d
(b) a & d
(c) a & b
(d) Only d
Question : Neutrons are more effective for producing nuclear reaction with nuclei compared to proton because :
(a) neutrons have greater P.E.
(b) neutrons emit βparticle
(c) neutrons do not experience electrostatic repulsion of nuclear charge or electron cloud
(d) neutrons are bit lighter than protons
Question : The process by which non fissionable U-238 is converted into fissionable Pu-239 is called :
(a) fission
(b) fusion
(c) enrichment
(d) chain reaction
Question : The most abundant isotope of natural uranium is :
(a) 92U238
(b) 92U235
(c) 92U234
(d) none of these
Question : Thermal neutrons are :
(a) extremely slow neutrons
(b) slow neutrons
(c) fast neutrons
(d) extremely fast neutrons
Question : In the nuclear reaction
92U235 + 0n1 56Ba141 + 36Kr92 + 3X + 200 MeV
X represents :
(a) proton
(b) neutron
(c) electron
(d) alpha particle
Question : Nuclear energy is :
(a) Renewable
(b) Non-renewable
(c) Both renewable & non-renewable
(d) None of these
