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You Are On Multi Choice Question Bank SET 1607
80351. The property of a substance to absorb moisture from the air on exposure is called
(A): osmosis (B): deliquescence (C): efflorescence (D): desiccation
80352. The average salinity of sea water is
(A): 3% (B): 3.5% (C): 2.5% (D): 2%
80353. When an iron nail gets rusted, iron oxide is formed
(A): without any change in the weight of the nail (B): with decrease in the weight of the nail (C): with increase in the weight of the nail (D): without any change in colour or weight of the nail
80354. Galvanised iron sheets have a coating of
(A): lead (B): chromium (C): zinc (D): tin
80355. Among the various allotropes of carbon,
(A): coke is the hardest, graphite is the softest (B): diamond is the hardest, coke is the softest (C): diamond is the hardest, graphite is the softest (D): diamond is the hardest, lamp black is the softest
80356. The group of metals Fe, Co, Ni may best called as
(A): transition metals (B): main group metals (C): alkali metals (D): rare metals
80357. The chemical (ethyl mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of
(A): bromine (B): fluorine (C): chlorine (D): sulphur
80358. The element common to all acids is
(A): hydrogen (B): carbon (C): sulphur (D): oxygen
80359. Non stick cooking utensils are coated with
(A): Teflon (B): PVC (C): black paint (D): polystyrene
80360. Monazite is an ore of
(A): titanium (B): zirconium (C): iron (D): thorium
80361. Carbon, diamond and graphite are together called
(A): allotropes (B): isomers (C): isomorphs (D): isotopes
80362. Potassium nitrate is used in
(A): medicine (B): fertiliser (C): salt (D): glass
80363. National Library for the Blind and Physically Handicapped is situated at:
(A): New Delhi (B): Chennai (C): Bangalore (D): Dehradun
80364. Soda water contains
(A): carbonic acid (B): sulphuric acid (C): carbon dioxide (D): nitrous acid
80365. ’Brain Chamber’is studied in library Science in:
(A): Information Communication Technology (B): Marketing Management (C): Universe of Knowledge (D): Quality Management
80366. Most soluble in water is
(A): camphor (B): sulphur (C): common salt (D): sugar
80367. Sodium metal is kept under
(A): petrol (B): alcohol (C): water (D): kerosene
80368. Actinides are the elements with atomic numbers from
(A): 97 to 104 (B): 101 to 115 (C): 89 to 103 (D): 36 from 43
80369. The two elements that are frequently used for making transistors are
(A): boron and aluminium (B): silicon and germanium (C): iridium and tungsten (D): niobium and columbium
80370. The filament of an electric bulb is made of
(A): tungsten (B): nichrome (C): graphite (D): iron
80371. Diamond is an allotropic form of
(A): germanium (B): carbon (C): silicon (D): sulphur
80372. In fireworks, the green flame is produced because of
(A): sodium (B): barium (C): mercury (D): potassium
80373. Permanent hardness of water can be removed by adding
(A): chlorine (B): washing soda (C): potassium permanganate (D): bleaching powder
80374. Marsh gas is
(A): nitrogen (B): ethane (C): methane (D): hydrogen
80375. LPG consists of mainly
(A): methane, ethane and hexane (B): ethane, hexane and nonane (C): methane, hexane and nonane (D): methane, butane and propane
80376. Air is a/an
(A): compound (B): element (C): electrolyte (D): mixture
80377. Balloons are filled with
(A): nitrogen (B): helium (C): oxygen (D): argon
80378. Which university first started Diploma Course in Library Science?
(A): Madras University (B): Delhi University (C): Mysore University (D): Calcutta University
80379. Calcutta Public Library was established in
(A): 1863 (B): 1831 (C): 1836 (D): 1857
80380. The main constituents of pearls are
(A): calcium oxide and ammonium chloride (B): calcium carbonate and magnesium carbonate (C): aragonite and conchiolin (D): ammonium sulphate and sodium carbonate
80381. Amalgams are
(A): highly coloured alloys (B): alloys which contain mercury as one of the contents (C): alloys which have great resistance to abrasion (D): alloys which contain carbon
80382. Potassium Permanganate is used for purifying drinking water, because
(A): it is a sterilising agent (B): it dissolves the impurities of water (C): it is a reducing agent (D): it is an oxidising agent
80383. Reading of a barometer going down is an indication of
(A): snow (B): storm (C): intense heat (D): rainfall
80384. Decibel is the unit for
(A): speed of light (B): radio wave frequency (C): intensity of sound (D): intensity of heat
80385. One fathom is equal to
(A): 6 feet (B): 6 meters (C): 60 feet (D): 100 cm
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