Description : In a nuclear reactor, heavy water is used
Last Answer : In a nuclear reactor, heavy water is used A. transfer the heat from the reactor B. provide ... fast moving neutorons D. increase the speed of neutrons
Description : What is the function of heavy water in a nuclear reactor?
Last Answer : – Slow down the speed of neutrons
Description : Fuel used in a nuclear reactor is (a) Uranium (b) Heavy water (c) Barium (d) Cadmium
Last Answer : Ans:(a)
Description : In nuclear reactor, heavy water is used as – (1) coolant (2) fuel (3) moderator (4) atomic smasher
Last Answer : (3) moderator Explanation: Heavy water is used in certain types of nuclear reactors where it acts as a neutron moderator to slow down neutrons so that they are more likely to react with ... do not require uranium enrichment, heavy water reactors are of concern in regards to nuclear proliferation.
Last Answer : Slow down the speed of neutrons
Description : Heavy water (D2O) in a nuclear reactor serves as a (A) Coolant (B) Moderator (C) Both (A) & (B) (D) Neutron absorber
Last Answer : (C) Both (A) & (B)
Description : A homogeneous reactor is the one, in which the (A) Fissile atoms are evenly distributed throughout the mass of nuclear reactor (B) Same substance (e.g. heavy water) is used as moderator & coolant (C) The fuel and the moderator is mixed to form a homogeneous material (D) All (A), (B) and (C)
Last Answer : (C) The fuel and the moderator is mixed to form a homogeneous material
Description : Thorium-232 is converted into uranium-233 in a/an __________ nuclear reactor. (A) Thermal (B) Fast breeder (C) Heavy water moderated (D) Enriched uranium
Last Answer : (B) Fast breeder
Description : Candu reactor is a __________ nuclear reactor. (A) Natural uranium fuelled heavy water cooled & moderated (B) Highly enriched uranium (85% U-235) fuelled (C) Homogeneous (D) Fast breeder
Last Answer : (A) Natural uranium fuelled heavy water cooled & moderated
Description : Which element is used as moderator in nuclear reactor? A. Light water B. Dense water C. Fresh water D. Heavy water (Answer)
Last Answer : D. Heavy water (Answer)
Description : Heavy water used as a coolant in nuclear reactor. Heavy Water is:
Last Answer : Water containing heavy Isotopes of Hydrogen atom
Description : In nuclear reactor, heavy water is used as (1) coolant (2) fuel (3) moderator (4) atomic smasher
Last Answer : moderator
Description : What is ‘Talcher' important for? (1) Heavy water plant (2) Hydro-electricity generation (3) Cable industry (4) Atomic reactor
Last Answer : (1) Heavy water plant Explanation: Talcher, located in Angul district of Odisha, is famous for Heavy Water Plant. This plant is a Government of India organisation under the aegis of Ministry of ... etc. and other allied chemicals required as a part of the nuclear power programme of the country.
Description : Which reactor uses heavy water as moderator ?
Last Answer : CANDU.
Description : In a pressurised water reactor (PWR), the (A) Fuel is natural uranium and heavy water acts both as moderator & coolant (B) Coolant water boils in the core of the reactor (C) Coolant water is pressurised to prevent bulk boiling of water in the core (D) Use of moderator is not required
Last Answer : (C) Coolant water is pressurised to prevent bulk boiling of water in the core
Description : __________ moderator is used in a fast breeder reactor. (A) Graphite (B) Heavy water (C) Beryllium (D) No
Last Answer : (D) No
Description : Heavy water is used as a moderator in a (A) Pressurised water reactor (PWR) (B) Boiling water reactor (BWR) (C) Candu reactor (D) Molten sodium cooled reactor
Last Answer : (C) Candu reactor
Description : Which of the following is a fuel for a fusion reactor (thermonuclear reactor)? (A) Deuterium and tritium (B) U-233 (C) Thorium (D) Heavy water
Last Answer : (A) Deuterium and tritium
Description : Coolant used in a fast breeder reactor is (A) Molten sodium (B) Heavy water (C) Ordinary water (D) Helium
Last Answer : (A) Molten sodium
Description : A heterogeneous reactor is the one, in which the moderator and the (A) Coolant are different materials (B) Coolant are present in different phases (e.g., heavy water and graphite) (C) Fuel are present in different phases (e.g. uranium and heavy water) (D) None of these
Last Answer : (C) Fuel are present in different phases (e.g. uranium and heavy water
Description : A fast reactor uses: w) an extremely short time to get to the maximum operating reactivity. x) uranium-235 as fuel. y) heavy water as a coolant. z) essentially unmoderated neutrons.
Last Answer : ANSWER: Z -- ESSENTIALLY UNMODERATED NEUTRONS.
Description : What is ‘Talcher’ important for? (1) Heavy water plant (2) Hydro–electricity generation (3) Cable industry (4) Atomic reactor
Last Answer : Heavy water plant
Description : The most commonly used feed stock for the reforming reactor is (A) Heavy fuel oil (B) Residuum (C) Straight run gasoline (D) Casing head gasoline
Last Answer : (C) Straight run gasoline
Description : The moderator used in a nuclear reactor is – (1) Uranium (2) Radium (3) Ordinary water (4) Graphite
Last Answer : (3) Ordinary water Explanation: Light water (ordinary water) is used as the moderator in U.S. reactors as well as the cooling agent. It acts as the means by which heat is removed to produce steam for turning the turbines of the electric generators.
Description : Which nuclear reactor uses water as a coolant, moderator and reflector ?
Last Answer : Pressurised water reactor.
Description : Nuclear power reactor located at Tarapur is of __________ type. (A) Fast breeder (B) Pressurised water (C) Boiling water (D) Gas cooled
Last Answer : (C) Boiling water
Description : Which of the following is not used as a moderator in nuclear reactor? (A) Molten sodium (B) Light water (C) Beryllium (D) Boron hydride
Description : _________ nuclear reactor does not require a heat exchanger tosupply steam to power turbine. (A) Molten sodium cooled (B) Helium cooled (C) Boiling water (D) Pressurised water
Description : Nuclear fuel usually used in a Boiling Water Reactor (BWR) is (A) Plutonium (B) Enriched uranium (C) Natural uranium (D) Thorium
Last Answer : (B) Enriched uranium
Description : The most commonly used nuclear fuel in boiling water reactor is (A) Enriched uranium (B) Natural uranium (C) Plutonium
Last Answer : (A) Enriched uranium
Description : Light water' used as a coolant in nuclear reactor is nothing but (A) Ordinary water (B) Mildly acidic (pH = 6) water (C) Mildly alkaline (pH = 8) water (D) None of these
Last Answer : (A) Ordinary water
Description : Which of the following types of nuclear reactors is most prone to radioactive hazards? (A) Pressurised water reactor (B) Gas cooled reactor (C) Molten sodium cooled reactor (D) Boiling water reactor
Last Answer : (D) Boiling water reactor
Description : Which of the following nuclear reactors is the most efficient thermodynamically while operating between the same temperature and pressure limits of the reactor? (A) Molten sodium cooled (B) CO2 gas cooled (C) Pressurised water (D) Boiling water
Last Answer : (D) Boiling water
Description : Net efficiency of ordinary light water cooled nuclear reactor is about __________ percent. (A) 32 (B) 52 (C) 72 (D) 88
Last Answer : (A) 32
Description : What substance was used as a moderator for the chain reaction in the first nuclear reactor? w) graphite x) boron y) water z) cadmium
Last Answer : ANSWER: W -- GRAPHITE
Description : An important safety feature required at U.S. nuclear power plants that was not present at the Chernobyl Power Plant in the Soviet Union was the: w) reactor x) cooling water y) control rods z) containment building
Last Answer : ANSWER: Z -- CONTAINMENT BUILDING
Description : The moderator used in a nuclear reactor is (1) Uranium (2) Radium (3) Ordinary water (4) Graphite
Last Answer : Ordinary water
Description : The way the human body is powered, is it more like electronic engineering or a nuclear reactor?
Last Answer : It’s like a boiler that burns the food for fuel.
Description : Which of the 6 reactor cores at the Fukushima I nuclear power plant pose the most serious risks?
Last Answer : answer:Do we depend on robots if the situation gets worse? I would wager if suitable robots were available, they would already be on site.
Description : Manoj's father works in a nuclear power reactor. He asked his father to take him for a visit to nuclear power reactor. But his father was not keen to take him there. Now answer the following ... could be the possible reason of Manoj's father not taking him to the nuclear power reactor? -Science
Last Answer : a) (i) Safety concerns. (ii) Health concerns. (b) Advantage: From a small amount of nuclear fuel, a large amount of energy is released in a nuclear power reactor. Disadvantage: There is risk of harmful radiation leakage from nuclear waste.
Description : Define process of nuclear fission. Writ the steps involved in generating electricity in a nuclear reactor. -Science
Last Answer : Nuclear Fission: The process in which a heavy nucleus (such as uranium, plutonium or thorium) is broken into two nearly equal fragments when bombarded with low-energy neutrons and a tremendous ... turbines producing electricity.The steam cools back into water, which can then be used over again.
Description : Which of the following is used as ‘a moderator in nuclear reactor? -General Knowledge
Last Answer : The answer is 'Graphite '
Last Answer : answer:
Description : Which is used as a diluent in a nuclear reactor? -General Knowledge
Last Answer : ZrN can be considered also as diluent for PuO2 fuel because these materials form a stable thermodynamic couple.
Description : First Nuclear Reactor of India ? -General Knowledge
Last Answer : APSARA is INDIA'S oldest nuclear reactor
Description : What is a controlled fission or nuclear reactor ?
Last Answer : Measures need to be taken to convert heat energy generated from nuclear fission into electrical energy so that huge amount of energy is generated in a very short time and the whole process does not ... energy supply is available for a long time. This is called controlled fission or nuclear reactor.
Description : Which element is used as fuel in nuclear reactor ?
Last Answer : Uranium-235 element is used as fuel in nuclear reactors.
Description : When was the first nuclear reactor built
Last Answer : When was the first nuclear reactor built A. 1942 B. 1944 C. 1945 D. 1947
Description : First nuclear reactor was built in
Last Answer : First nuclear reactor was built in A. Russia B. U.S.A C. U.K. D. France