ONGC MODEL PAPER/ SAMPLE PAPER- MECHANICAL ENGINEERING

ONGC  has been announced the written test for the various posts of the graduate trainee.  The model papers for the mechanical engineering candidates are given below….

   Here some subject questions are given rest of the question will be in model paper-2.

    

  ONGC GT-2012 MODEL PAPER       ONGC GS AND APTITUDE MODEL PAPER

                                           Mechanical engineering model paper

 1. Time dependent permanent deformation is called ________________.

      (a) Plastic deformation            (b) Elastic deformation

       (c) Creep                                (d) Anelastic deformation

    ANS: C

2. Figure-out the odd point in the following

     (a) Proportinal limit                     (b) Elastic limit

     (c) Yeild point                             (d) Fracture point

      ANS: D

3. If a material is subjected to two incremental true strains namely ε₁ and ε₂, then the total true strain is

         (a) ε₁ * ε₂              (b) ε₁ - ε₂              (c) ε₁ + ε₂                               (d) ε₁ / ε₂

        ANS: C

4. Engineering stress-strain curve and True stress-strain curve are equal up to

       (a) Proportional limit              (b) Elastic limit                                     

        c) Yeild point                         (d) Tensile strength point

     ANS:C

5. Value of Poisson’s ratio for ionic solids in the range of

      (a) 0.1       (b) 0.2            (c) 0.3                 (d) 0.4

    ANS:B

6. Hydrostatic stress results in the following

     (a) Linear strain                                 (b) Shear strain

      (c) Both linear and shear strains       (d) None

     ANS:D

7. High elastic modulus in materials arises from

       (a) High strength of bonds               (b) Weak bonds

       (c) combination of bonds                 (d) None

    ANS: A

8. Change in elastic modulus for ordinary materials between 0K and melting point is

     (a) 10-20% increase                  (b) 10-20% decrease

     (c) 80-90% decrease                 (d) 80-90% increase

    ANS: B

9. Bauschinger effect

      (a) Hysteresis loss during loading and unloading

     (b) Anelastic deformation

     (c) Dependence of yield stress on path and direction

     (d) None

ANS: C

10. Shape of true stress-strain curve for a material depends on

        (a) Strain                                 (b) Strain rate

        (c) Temperature                       (d) All

      ANS: D

11. Toughness of a material is equal to area under ____________ part of the stress-strain curve.

         (a) Elastic            (b) Plastic                (c) Both                (d) None

    ANS: C

12. True stress-strain curve need to be corrected after

       (a) Elastic limit               (b) Yield limit

       (c) Tensile strength          (d) no need to correct

    ANS: C

13. Following condition represents onset of necking

         (a) ε_u = n       (b) ε_u = 1-n             (c) ε_u = 1+n               (d) ε_u = ln (1+n)

      ANS: A

14. As compared with conventional stress-strain curve, the true stress-strain curve is

         (a) Above and right                  (b) Below and right

         (c) Above and left                    (d) Below and left

       ANS: C

15. According to distortion-energy criterion, yielding occurs when

        (a) Distortion energy reaches a critical value

        (b) Second invariant of the stress deviator exceeded some critical value

        (c) Octahedral shear stress reaches a critical value

        (d) All

   ANS: D

16. von Mises and Tresca criteria give different yield stress for

      (a) Uni-axial stress                  (b) Balanced bi-axial stress

      (c) Pure shear stress                (d) All

ANS:  C

17. Plastic deformation results from the following

         (a) Slip              (b) Twinning             (c) Both               (d) None

    ANS: C

18. Time dependent recoverable deformation under load is called ____________ deformation.

       (a) Elastic                                 (b) Anelastic

       (c) Elastic after-effect               (d) Visco-elastic

    ANS: B

           ONGC GT-2012 Aptitude and G.S. model paper

                                   click for MODEL PAPER -2.

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The rest of the subject question will be updates later please keep in touch the post and wait for updating.

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