22801. Uranium is recovered from its ore (pitchblende) by
22802. Which of the following is the best nuclear fuel?
22803. Which type capacitor is used for starting of a single phase motor?
22804. Which of the following nuclear reactors is the most efficient thermodynamically while operating between the same temperature and pressure limits of the reactor ?
22805. Which of the following accounts for the maximum energy release in the nuclear fission process ?
22806. In a pressurised water reactor (PWR), the
22807. Liquid metal (e.g, . molten sodium) is preferred as a coolant in case of a/an __________ reactor.
22808. Coolant used in a boiling water reactor is
22809. A thermal nuclear reactor compared to a fast breeder reactor
22810. The phenomenon of nuclear fission is opposite to that of
22811. An ideal coolant for a nuclear reactor should
22812. The size of an atom is of the order of one
22813. 'Light water' used as a coolant in nuclear reactor is nothing but
22814. Isotopes of an element have different
22815. The emission of an a-particle causes the resultant nucleus to have
22816. Solar energy results from __________ reaction.
22817. In nuclear reactions, __________ number is conserved.
22818. The molecular weight of heavy water is
22819. Which of the following is not a good moderating material ?
22820. Plutonium
22821. A control rod
22822. Number of secondary neutron emitted on fission of an atom of U-235 by slow neutron bombardment is
22823. Enriched uranium means that, it contains
22824. The radioisotope used to study the thyroid gland is
22825. The mass number of an element is equal to the number of __________ in the nucleus.
22826. The half life period of a radioactive element depends upon the
22827. Fuel for a fast breeder reactor is
22828. Fast breeder test reactor at Kalpakkam is designed for using
22829. In the gaseous diffusion process of uranium enrichment, the natural uranium is converted into gaseous
22830. Nuclear reactors are provided with shield to guard against the emission of mainly __________ rays.
22831. Mass of a positron is same as that of a/an
22832. An unbalanced system of three phase voltages having RYB sequence actually consists of
22833. Transformer oil serves the functions of
22834. Radioactive decay of a material involves a __________ order reaction.
22835. Uranium ore is mined & concentrated in India at
22836. Which of the following factors is the most important in the site selection for a nuclear power plant ?
22837. A fast breeder reactor
22838. Heavy water has maximum density at __________ °C.
22839. Ceramic nuclear metals compared to solid nuclear metals have
22840. Unit of radioactivity is
22841. Which of the following reactors is operated at high neutron flux and low power level ?
22842. Uranium percentage in monazite sand is about
22843. Artificially produced radioactive isotopes are used for
22844. In a homogeneous nuclear reactor, the __________ are mixed together.
22845. Nucleus of 92U235 contains __________ protons.
22846. Which of the following radiations is the least penetrating ?
22847. β-rays emission in radioactive disintegration is always accompanied by the emission of
22848. Hydrogen differs from deuterium in __________ properties.
22849. Both tritium and deuterium have the same number of
22850. Nuclear power generation capacity in India is