You Are On Multi Choice Question Bank SET 436
21801. Constantan is an alloy of
21802. Babbit metals used for making bearings are
21803. Pipes for bi-cycle frames are made of __________ steel.
21804. Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40°C ?
21805. Interchain forces are the weakest in case of
21806. __________ possesses viscoelastic properties.
21807. Steel tower used for the storage of oleum
21808. Plastics are
21809. Acetaldehyde is produced by hydration of acetylene in a sulphuric acid solution of mercuric sulphate. Hydration tower is made of
21810. Wood is corroded by
21811. Brass is an alloy of
21813. The basic control device of the carborattor is
21814. Cast iron has
21815. Locomotive boiler tubes are made of __________ alloys.
21816. Slow and progressive deformation of a material with time under constant stress is called
21817. In mac pherson-strut suspension system the upper end of the strut is attached to the
21818. Which of the following mechanical properties of a material is most structure insensitive ?
21819. Mercury is transported in metal containers made of
21820. Which of the following would not be a suitable material of construction for handling aqueous hydrofluoric acid (HF) at 100°C ?
21821. Which of the following has the least carbon percentage ?
21822. The range of Mho's scale of hardness is from
21823. Which of the following pairs of elements may form an alloy ?
21824. SO3 is absorbed using H2SO4 in a
21825. Carbon percentage in medium carbon steel is around
21826. The preferred material of construction for storage tanks for 98% sulphuric acid is
21827. The fermentor used for the production of ethyl alcohol from molasses is made of
21828. Super conductors are those substances, which
21829. Cermets are used for making
21830. The formation of oxide film on a metal due to atmospheric exposure reduces its
21831. A hardened steel essentially contains
21832. Which one contains the least percentage of carbon ?
21833. Thermal shield used in high powered nuclear reactor to protect the walls of the reactor from radiation damage is made of
21834. All materials obey Hooke's law within elastic limit. When elastic limit is reached, the tensile strain
21835. Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si)
21836. Which of the following is not a copper based alloy with nickel ?
21837. Which of the following alloys does not contain nickel ?
21838. An elastic behaviour of materials is expressed in terms of
21839. Pure nickel is
21840. In drop forging process, the forging is done by dropping the __________ at high velocity.
21841. Which of the following is not an alloy of copper and tin ?
21842. __________ is never shipped in glass carboys.
21843. Lead is
21844. Nitriding of steel is done (in electric furnace) at __________ °C.
21845. Addition of 2% nickel in steel makes it suitable for making
21846. The softest material just next to talc in the Mhos scale is
21847. Fatigue strength of a material increases by
21848. Specify the material of construction suitable for handling concentrated HNO3 at 100°C.
21849. Aluminium storage vessel can be used to store
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21850. Silicone rubber is not resistant to the corrosive action of
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