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Old January 16th, 2014, 01:44 PM
Aakashd
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Join Date: Jun 2013
Posts: 42,978
Default Re: Mechanical Engineering ONCG Previous Paper

Here I am giving you question paper for the ONCG mechanical engineering examination in word file attached with it so you can get it easily..

Some questions are given below :
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

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
Attached Files
File Type: doc Mechanical Engineering ONCG paper.doc (36.5 KB, 81 views)
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