BSNL Online Mock 2

20 Questions

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BSNL Online Mock 2

BSNL TTA Online Mock 2 The Questions give you a fair idea of the BSNL TTA Exam Question Paper Pattern and help you prepare better. The written examination consists of objective type paper including 3 parts that are as follows: General Ability Test 20 questions 20 marks Basic Engineering 90 questions 90 marks Professional Knowledge 90 questions 90 marks However Contemporary Test contains only 20 Question and Full Mock will available for Registered Users Total Question 20 &nbs


Questions and Answers
  • 1. 
    In myopia, the image of distant object is formed:
    • A. 

      On the retina

    • B. 

      Behind the retina

    • C. 

      Before the retina

    • D. 

      Above the retina

  • 2. 
    In hypermetropia, the image of near object is formed:
    • A. 

      On the retina

    • B. 

      Before the retina

    • C. 

      Above the retina

    • D. 

      Behind the retina

  • 3. 
    The film of the camera is compared to which part of human eye?
    • A. 

      Iris

    • B. 

      Lens

    • C. 

      Choroid

    • D. 

      Retina

  • 4. 
    The velocity of light in glass is:
    • A. 

      1.98

    • B. 

      2.00

    • C. 

      1.09

    • D. 

      1.66

  • 5. 
    Direction :5In this question Sentence has 4 parts Indicated by A.B,C and D,Find the error He could'not attend his (A) / office because his   (B)   /   father's serious illness   (C) / No error (D)
    • A. 

      D

    • B. 

      A

    • C. 

      C

    • D. 

      B

  • 6. 
    Width of the energy bands depends on the which of the following ?
    • A. 

      Temperature

    • B. 

      Pressure

    • C. 

      Relative freedom of electrons in the crystal

    • D. 

      Mass of the atom of the material

  • 7. 
    Constantan contains
    • A. 

      Copper and nickel

    • B. 

      Copper and tungsten

    • C. 

      Tungsten and silver

    • D. 

      Silver and tin

  • 8. 
    Which of the following Pairs is commonly used in thermocouples?
    • A. 

      Iron-Steel

    • B. 

      Aluminium - Tin

    • C. 

      Copper-Constantan

    • D. 

      Silver-German Silver

  • 9. 
    With increase in applied frequency, the dielectric loss in a material will 
    • A. 

      Increase

    • B. 

      Decrease

    • C. 

      Remain constant

    • D. 

      Become ZERO

  • 10. 
    Some ceramic Superconductor becomes superconducting
    • A. 

      Below liquid helium temperature

    • B. 

      Between liquid helium and liquid nitrogen temperature

    • C. 

      Above liquid nitrogen temperature but below room temperature

    • D. 

      Above room temperature

  • 11. 
    GaAs has an energy gap 1.43 eV. The optical cut of wavelength of GaAs would lie in the 
    • A. 

      Visible region of the Spectrum

    • B. 

      Infrared region of the Spectrum

    • C. 

      Ultraviolet region of the Spectrum

    • D. 

      Far ultraviolet region of the Spectrum

  • 12. 
    Thermal expansion of material arises from 
    • A. 

      Strong bond

    • B. 

      Weak bond

    • C. 

      Thermal vibrations

    • D. 

      Asymmetry of potential energy curve

  • 13. 
    A difference between the indicated value and the true values of  a quantity  is known as
    • A. 

      Relative error

    • B. 

      Absolute error

    • C. 

      Dynamic error

    • D. 

      Gross error

  • 14. 
    Magnetic Susceptibility  (chi)  equals to
    • A. 

      Dipole moment per unit volume.

    • B. 

      Torque per unit area.

    • C. 

      Magnetisation per unit magnetic field intensity

    • D. 

      None of these

  • 15. 
    Even the Carbon is in IV group of the periodic table , it is not used as a semiconductor because it has _________.
    • A. 

      High dielectric constant

    • B. 

      Large energy gap > 5ev

    • C. 

      Low temperature coefficient

    • D. 

      Low thermal conductivity

  • 16. 
    The crystal structure of more common metal is 
    • A. 

      Hexagonal

    • B. 

      Cubic

    • C. 

      Orthorhombic

    • D. 

      Linear

  • 17. 
    Ferrimagnetic materials generally find application as 
    • A. 

      Conductor

    • B. 

      Insulator

    • C. 

      Superconductor

    • D. 

      Semiconductors

  • 18. 
    Loss in a dielectric may occur due to 
    • A. 

      Polarization

    • B. 

      Conductivity

    • C. 

      Ionisation

    • D. 

      Any of the above

  • 19. 
    Which of the following process is used to harden the steel ?
    • A. 

      Normalizing

    • B. 

      Annealing

    • C. 

      Carburizing

    • D. 

      None of the above

  • 20. 
    A material with unequal anti- parallel atomic magnetic moments is  
    • A. 

      An anti-ferromagnet

    • B. 

      Ferrimagnet

    • C. 

      A ferrite

    • D. 

      Non-magnetic