The land near which of the following is considered the lowest point on land on earth?
Caspian Sea
Dead Sea
Black Sea
Salton Sea
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The land near which of the following is considered the lowest point on land on earth?
Caspian Sea
Dead Sea
Black Sea
Salton Sea
In which ocean Bermuda triangle located at
Black Sea
Caspian Sea
Atlantic Ocean
South China Sea
Which ocean lies between Australia and Africa?
Atlantic
Arctic
Indian
Pacific
Which ocean is Hawaii in?
Atlantic
Pacific
Indian
Arctic
Which ocean is frozen for much of the year?
Atlantic
Arctic
Indian
Pacific
Which is the deepest ocean in the world?
Atlantic
Pacific
Indian
Arctic
which one of these is the second deepest ocean in the word
Atlantic
Artic
Indian
None of These
The oceans cover ______ of the surface of the earth.
50%
60%
71%
80%
Which of the following nuclear reactor does not need a heat exchanger for generation of steam
gas cooled
liquid metal cooled
pressurised water
boiling water
Which of the following is the primary fuel
Ulii
U
U238
Pu
Uranium-233 is produced
as basic raw material
by neutron irradiation of Uz
by neutron irradiation of thorium
artificially
U238 will undergo fission by
high energy (fast) neutrons alone
low energy (slow) neutrons alone
either fast or slow neutrons
medium energy neutrons
U235 will undergo fission by
high energy (fast) neutrons alone
low energy (slow) neutrons alone
either fast or slow neutrons
medium energy neutrons
The unit of radio-activity is
electron-volt
electron-ampere
curie
MeV
The total energy released in fission of U is
5 MeV
10 MeV
199 MeV
168 MeV
The size of the reactor is said to be critical when
chain reaction can be initiated
it becomes uncontrollable
it explodes
it produces no power
The risk of radioactive hazard is greatest in the turbine with following reactor
pressurised water
boiling water
gas cooled
liquid metal cooled
The process by which a heavy nucleus is splitted into two light nuclei is known as
splitting
fission
fusion
chain reaction
The nuclear energy is measured as
MeV
curie
kWhr
MW
The most commonly used moderator in nuclear plants is
heavy water
graphite
deutrium
graphite and concrete