Monday 21 July 2014

SAMPLE SHEET: GATE 2015; STRENGTH OF MATERIALS (MECHANICAL ENGINEERING)

CRACKGATE EDUCATION
House No: 237; Sector – 5; Chiranjeev Vihar, Ghaziabad
                     Contact No : #9555921800
PRACTICE WORKSHEET GATE-2015
MECHANICAL ENGINEERING
TOPIC: STRENGTH OF MATERIALS
Difficulty Level: 1
SET ONE: Each question has several entries, choose the most appropriate one

01)  The intensity of stress which causes unit strain is called
            a) unit stress                                                     b) bulk modulus
            c) modulus of elasticity                                               d) principal stress
02)  Which of the following materials has poisson’s ratio more than unity
            a) steel                                                                         b) copper
            c) cast iron                                                       d) none of these
03) The change in the unit volume of a material under tension with increase in its Poisson’s ratio will
            a) increase                                                       b) decrease
            c) increase initially and then decrease              d) remain same
04) In a tensile test, near the elastic zone, the tensile strain
            a) increases more quickly                                b) decreases more quickly
            c) increases in proportion to the stress                         d) increases more slowly
05) The stress necessary to initiate yielding is
            a) considerably greater than that necessary to continue it
            b) considerably lesser than that necessary to continue it
            c) remain same to continue it
            d) can’t be predicted
06) Flow stress corresponds to
            a) fluids in motion                                           b) breaking point
            c) plastic deformation of solids                                   d) rupture stress
07) The maximum strain energy that can be stored in a body is known as
            a) impact energy                                              b) resilience
            c) proof resilience                                            d) modulus of resilience
08) Thermal stress is always
            a) tensile                                                          b) compressive
            c) tensile or compressive                                 d) none of these
09) The loss of strength in compression due to overloading is known as
            a) hysteresis                                                     b) relaxation
            c) creep                                                            d) Bouschinger effect
10) If a material expands freely due to heating, it will develop
            a) thermal stress                                               b) lateral stress
            c) creep stress                                                  d) no stress


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