Assistant Tester Cum Gauger Malabar Cements 510/2015 Answer Key

4/26/2018
cement industry

Post : Assistant Tester Cum Gauger
Department : Malabar Cements Limited
Category Code : 510/15
Qualification :  Plus II with chemistry + 3 years experience
Date of Test : 26-04-2018




  1. A pressure cooker reduces cooking time because
    • Heat is more evenly distributed
    • The boiling point of water inside the cooker is elevated
    • The higher pressure tenderises the food
    • The boiling point of water inside the cooker is depressed

  2. The galvanic cell which convert energy of combustion directly to electrical energy is called
    • Fuel cell
    • Primary cell
    • Secondary cell
    • Voltaic cell

  3. Haber process is used for the manufacture of
    • Sulphuric acid
    • Nitric acid
    • Nitrogen
    • Ammonia

  4. The group 13 element which is liquid during summer is
    • Al
    • In
    • Ga
    • Tl

  5. Intra molecular hydrogen bond exist in
    • HF
    • H2O
    • o-nitro phenol
    • ethyl alcohol

  6. Which of the following shows both Schottky and Frenkel defect?
    • AgBr
    • CsCl
    • AgCl
    • ZnS

  7. Bauxite is the ore of
    • Iron
    • Aluminium
    • Copper
    • Zinc

  8. How many kinds of space lattice are possible in a crystal?
    • 7
    • 23
    • 14
    • 21

  9. The law starting that ''the partial pressure of the gas in vapour phase is proportional to the mole fraction of the gas in the solution'' is known as
    • Raoults law
    • Dalton's law of partial pressure
    • Ostwald's dilution law
    • Henry's law

  10. The excess pressure that is applied to the solution to prevent the passage of solvent in to it through a semi permeable membrane is referred to as
    • Partial pressure
    • Critical pressure
    • Osmotic pressure
    • None of these

  11. The hybridisation of carbon in Graphite is
    • dsp2
    • sp
    • sp3
    • sp2

  12. Isotonic solutions have
    • Same osmotic pressure
    • same freezing point
    • same melting point
    • same boiling point

  13. Best method to prevent corrosion of iron is
    • making iron cathode
    • making iron anode
    • put it in saline water
    • make it in contact with atmosphere

  14. The half life of first order reaction with rate constant 'K' is given by
    • ([R0])/(2K)
    • ([R0)])/(K)
    • (0.693)/(2K)
    • (0.693)/(K)

  15. Unit of first order reaction is
    • S-1
    • mol L-1S-1
    • mol-2LS-1
    • dimensionless

  16. Which of the following constitute Daniel cell?
    • Zn-Hg cell
    • Zn-Cu cell
    • Zn-Ag cell
    • Cu-Hg cell

  17. The correct formula for plaster of paris is
    • CaSO4.2H2O
    • CaSO4.H2O
    • CaSO4.1/2H2O
    • Ca2SO4. H2

  18. Permanent hardness of water is due to the presence of
    • Bicarbonates of Na and K
    • Bicarbonates of Ca and Mg
    • Chlorides and sulphates of Ca and Mg
    • Chlorides and sulphates of Na and K

  19. Role of a catalyst in a chemical reaction is
    • To decrease activation energy
    • To increase activation energy
    • To increase heat of reaction
    • To decrease heat of reaction

  20. Characteristics of transition element
    • Show variable oxidation state
    • Forms alloys
    • Form coloured compounds
    • All these

  21. In [Ni(CO)4], the oxidation number of Nickel is
    • +3
    • +2
    • +4
    • Zero

  22. Primary, secondary and tertiary amines can be distinguished by Hinsberg reagent, which is
    • Benzoyl chloride
    • Benzene sulphonyl chloride
    • Acetic anhydride
    • Benzyl chloride

  23. The monomer of PVC is
    • Ethene
    • Vinyl chloride
    • Styrene
    • Tetra Fluoro ethane

  24. Tyndall effect is
    • Scattering of light by colloidal particle
    • Refraction of light by colloidal particle
    • Absorption of light by colloidal particle
    • Reflection of light by colloidal particle

  25. Which of the following battery is used in automobiles?
    • Nickel-cadmium cell
    • H2-O2 fuel cell
    • Lead storage battery
    • Mercury cell

  26. Emulsion is an example of colloidal system of
    • Liquid dispersed in gas
    • Solid dispersed in gas
    • Liquid dispersed in liquid
    • Liquid dispersed in solid

  27. The volume of 1 mol of gas at STP is
    • 22.4 ml
    • 22.4 L
    • 2.24 ml
    • 2.24 L

  28. The oxidation number of sulphur in H2SO4 is
    • +5
    • +4
    • +6
    • +2

  29. n = 3, l = 2 represent which orbital
    • 3s
    • 3d
    • 3p
    • 3f

  30. The protective action of colloids are expressed in terms of
    • Gold Number
    • Octane number
    • Atomic number
    • Cetane number

  31. Bronze is an alloy of
    • Cu with Zn
    • Cu with Ni
    • Fe with Ni
    • Cu with Sn

  32. Vitamin C is
    • Cobalamine
    • Riboflavin
    • Calciferol
    • Ascorbic acid

  33. Atoms of different elements having same number of neutrons are called
    • Isotopes
    • Isobars
    • Isotones
    • Isomers

  34. Sulphide ores are concentrated by
    • Froth floatation method
    • Magnetic separation
    • Hydraulic washing
    • Leaching

  35. The thermal decomposition of Hl on gold surface is a reaction of
    • First order
    • Zero order
    • Fractional order
    • Second order

  36. Among the following which is used as dehydrating reagent
    • Alcoholic KOH
    • Acidified KMnO4
    • LiAlH4
    • Conc.H2SO4

  37. General outer electronic configuration of group 15 elements are
    • ns2np3
    • ns2np4
    • ns2np6
    • ns2np5

  38. The process of accumulation of molecular species at the surface rather than in the bulk is called
    • Absorption
    • Adsorption
    • Sorption
    • Desorption

  39. Schottky defect is characterised by
    • Increase in density
    • Decrease in density
    • No change in density
    • None of these

  40. Caustic soda is
    • NaCl
    • NaHCO3
    • Na2CO3
    • NaOH

  41. Number of moles of solute dissolved in 1 kg of solvent is
    • Molarity
    • Mole fraction
    • Molality
    • Mass percentage

  42. Williamson's synthesis is used for the preparation of
    • Aldehydes
    • Ketones
    • Alcohols
    • Ethers

  43. Which of the following is isoelectronic species?
    1. Na+
    2. Ca2+
    3. F-
    4. O2-
    • 1, 2 and 4
    • 1, 3 and 4
    • 2, 3 and 4
    • 1, 2 and 3

  44. Oleum is
    • H2S2O7
    • H2SO4
    • H2SO3
    • SO3

  45. The +8 oxidation state is shown by
    • Os
    • Fe
    • Mn
    • Th

  46. Which of the following is a natural polymer?
    • Polyethene
    • Teflon
    • Cellulose
    • Glyptal

  47. On heating an aldehyde with Fehling solution, we get a precipitate whose colour is
    • White
    • Yellow
    • Red
    • Black

  48. Nitric acid is prepared by
    • Contact process
    • Ostwald's process
    • Haber process
    • Oxidation process

  49. Which of the following substance on dissolving in water will give an acidic solution?
    • NaCl
    • Na2CO3
    • CH3COONa
    • NH4Cl

  50. Zeigler-Natta catalyst is
    • (CH3)3Al and TiCl4
    • (C2H5)3Al and TiCl4
    • V2O5
    • KMnO4

  51. Which of the following has magnesium?
    • Chlorophyll
    • Haemoglobin
    • Vit.B12
    • Haemocyanin

  52. Natural rubber is a polymer of
    • Styrene
    • Chloroprene
    • Acrylonitrile
    • Isoprene

  53. 2, 4, 6-trinitrophenol is also known as
    • Salicylic acid
    • Resorcinol
    • Picric acid
    • Cinnamic acid

  54. EDTA is an example of
    • Monodentate ligand
    • Hexadentate ligand
    • Ambidentate ligand
    • Chelate ligand

  55. Chloroform is
    • CH3Cl
    • CHCl3
    • CH2Cl2
    • CCl2

  56. The total number of orbital possible for principal quantum number 'n' is
    • n
    • 2n
    • 2n2
    • n2

  57. Which of the following is an ambidentate ligand?
    • H2O
    • NH3
    • CN
    • CO

  58. Oxygen shows +2 oxidation state in the compound
    • H2O
    • H2O2
    • OF2
    • CaO

  59. R - X + Nal ➝ R-l + NaX. This reaction is
    • Finkelstein reaction
    • Swarts reaction
    • Wurtz reaction
    • Fittig reaction

  60. Primary, Secondary and tertiary alcohols are distinguished by
    • Lucas test
    • Tollens test
    • Fehling test
    • Borsche's test

  61. Which of the following has the highest electron gain enthalpy?
    • O
    • S
    • F
    • Cl

  62. Shape of SF6 molecule is
    • Tetrahedral
    • Square planar
    • Pyramidal
    • Octahedral

  63. Which of the following compound is added to rectified spirit to make it unfit for drinking purpose?
    • Acetic acid
    • Methanol
    • Chloroform
    • Acetone

  64. Benzene diazonium chloride on reaction with warm water gives
    • Phenol
    • Benzene
    • Toluene
    • Benzaldehyde

  65. The catalyst used in contact process for the manufacture of H2SO4 is
    • Fe
    • Ni
    • V2O5
    • Peroxides

  66. A carbohydrate which cannot be hydrolysed to simpler compound is called
    • Mono saccharides
    • Poly saccharides
    • Disaccharides
    • Oligo saccharides

  67. The Zig-Zag motion of colloid particle is known as
    • Electro phorosis
    • Electro-osmosis
    • Coagulation
    • Brownian movement

  68. Liquation is used for the refining of
    • Low boiling metals
    • High boiling metals
    • Low melting metals
    • High melting metals

  69. A process is said to be spontaneous if
    • ΔH is -ve
    • ΔS is +ve
    • ΔG is -ve
    • all these

  70. Neutron was discovered by
    • Chadwick
    • Rutherford
    • J.J. Thomson
    • Neils Bohr

  71. 22Na contains
    • 11 electron
    • 22 electron
    • 22 protons
    • 22 neutrons

  72. Which of the following molecule has zero dipole moment?
    • H2O
    • CO2
    • NH3
    • NF3

  73. In an isothermal process which of the following is true?
    • ΔV = 0
    • Δq = 0
    • ΔT = 0
    • ΔP = 0

  74. Which of the following is water gas?
    • CO+N2
    • N2+H2
    • O2+H2
    • CO+H2

  75. Bond order is given by
    • 1/2 (Nb-Na)
    • 1/2(Na-Nb)
    • 2(Na-Nb)
    • 2(Nb-Na)

  76. At absolute zero of temperature
    • temperature of gas is zero
    • Volume of gas is zero
    • Pressure of gas is zero
    • Number of moles of gas is zero

  77. Hot tea in a thermo flask is an example of
    • Closed system
    • Isolated system
    • Open system
    • Cyclic system

  78. PH of pure water at 298 K is
    • 6.9
    • 7.2
    • 7
    • 7.5

  79. Avogadro number is
    • 6.022 ×1022
    • 0.6022 ×1022
    • 0.6022 ×1023
    • 6.022 ×1023

  80. Azeotropes are
    • Mixture having same composition in solid and liquid phase
    • Mixture having same composition in liquid and vapour phase
    • Mixture having same composition in solid and vapour phase
    • All these

  81. Who among the following was not a member of the constitution drafting committee?
    • B.R. Ambedkar
    • Jawaharlal Nehru
    • K.M. Munshi
    • Alladi Krishnaswami Ayyar

  82. Article 368 of the Indian constitution deals with
    • Fundamental Duties
    • Fundamental Rights
    • Amendment of the constitution
    • Citizenship

  83. 'Kudumbasree' was launched in
    • 1996
    • 1998
    • 2000
    • 2002

  84. 'Pratheeksha Bhavan' under the Social Justice Department for the rehabilitation of mentally retarded men above the age of 18 is at
    • Poojapura
    • Kakkanad
    • Ramavarmapuram
    • Thavanur

  85. Dr. Gundert,the champion of English education in Malabar was a
    • German
    • British
    • French
    • Portuguese

  86. The FACT was started during the period of
    • Swathi Tirunal
    • Uthradam Tirunal
    • Sri Chithra Tirunal
    • Sri Mulam Tirunal

  87. 'Samathwa Samajam' was founded by
    • Ayyankali
    • K. Ayyappan
    • Vagbhatananda
    • Vaikunda Swamikal

  88. 'Sahodara Sangham' was founded in
    • 1904
    • 1908
    • 1914
    • 1917

  89. The 'Ezhava Memorial' was submitted in
    • 1809
    • 1888
    • 1891
    • 1896

  90. Which among the following was a post-independent event?
    • Kuttamkulam struggle
    • Paliyam Satyagraha
    • Punnapra-Vayalar struggle
    • Yachana Yathra

  91. 'Mitavadi' was published from
    • Kozhikode
    • Thalasseri
    • Mahe
    • Kannur

  92. The Trivandrum Public Library was started by
    • Edward Cadogan
    • John Allan Brown
    • Thomas Munro
    • A.F. Sealy

  93. A.R. Raja Raja Varma was the ___________ of Kerala Varma Valiya Koyil Thampuran.
    • Father
    • Son
    • Nephew
    • Brother

  94. 'Vyazhavattasmaranakal' was written by
    • K. Ramakrishna Pillai
    • B. Kalyani Amma
    • E.V. Krishna Pillai
    • C. Kesavan

  95. Who among the following was not a member of the Vadakkath family of Anakkara?
    • A.V. Kuttimalu Amma
    • Ammu Swaminathan
    • Captain Lakshmi
    • Lalitha Prabhu

  96. The Volunteer captain of 'Guruvayur Satyagraha' was
    • K. Kelappan
    • A.K. Gopalan
    • T.K. Madhavan
    • Mannath Padmanabhan

  97. The Grand Slam tennis tournament playing in grass court
    • US Open
    • Australian Open
    • Wimbledon Open
    • French Open

  98. The opponent of P.V. Sindhu in the Final of Badminton World Championship 2017 was from
    • China
    • Korea
    • Japan
    • Malaysia

  99. Dr. Babasaheb Ambedkar International Airport is at
    • Nagpur
    • Pune
    • Mumbai
    • Surat

  100. The Winner of Jnanpith Award 2016
    • Shankha Ghosh
    • Raghuveer Chaudhary
    • B.V. Nemade
    • Kedarnath Singh

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