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**Home⇒ Engineering⇒ Strength of materials**

1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |

2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |

Q1 ⇒ Under external loads the stress is developed
in the body due toDeformation of particles[other wrong options] [Discuss in forum] Heating Cooling of particles None of the above |

Q2 ⇒ When a steel rod is pulled from opposite
ends the stress developed will beTensile stress[other wrong options] [Discuss in forum] Compressive stress Shear stress Bending, stress |

Q3 ⇒ The modulus of elasticity for copper is more
than that of lead. It can be, therefore, concluded
that copper isMore elastic[other wrong options] [Discuss in forum] More plastic Less elastic Less plastic |

Q4 ⇒ For which of the following materials, the
Poisson's ratio is expected to the least ?Concrete[other wrong options] [Discuss in forum] Steel Cast iron Copper |

Q5 ⇒ A reinforced concrete beam is considered as
made ofHeterogeneous material[other wrong options] [Discuss in forum] Homogeneous material Composite material Isotropic material |

Q6 ⇒ Inclined loads generally causeThrust in the beam[other wrong options] [Discuss in forum] Twisting of the beam Points of contraflexure All the above |

Q7 ⇒ The ratio of elongations of a conical bar due to its own weight and that of a prismatic bar of the same length, is1/3[other wrong options] [Discuss in forum] 1/2 1/4 1/5 |

Q8 ⇒ A simply supported beam of span L carries a concentrated load W at its mid-span. The maximum bending moment M isWL/4[other wrong options] [Discuss in forum] WL/2 WL/8 WL/12 |

Q9 ⇒ For a given material Young's modulus is 200 GN/m^{2} and modulus of rigidity is 80 GN/m^{2}. The value of Poisson's ratio is0.25[other wrong options] [Discuss in forum] 0.15 0.20 0.30 |

Q10 ⇒ The range within which a load can be applied on a rectangular column, to avoid any tensile stress, is.one-fifth of the base[other wrong options] [Discuss in forum] one-half of the base one-fourth of the base one-fifth of the base |

Q11 ⇒ A rectangular bar of width b and height h is being used as a cantilever. The loading is in a plane parallel to the side b. The section modulus is.b2h/6[other wrong options] [Discuss in forum] bh3/12 bh2/6 none of these. |

Q12 ⇒ Pick up the correct statement from the following :All the above.[other wrong options] [Discuss in forum] A ductile material has large plastic zone A brittle material has no plastic zone A rigid material has no plastic zone |

Q13 ⇒ A uniform girder simply supported at its ends is subjected to a uniformly distributed load over its entire length and is propped at the centre so as to neutralise the deflection. The net B.M. at the centre will beWL/32[other wrong options] [Discuss in forum] WL WL/8 WL/24 |

Q14 ⇒ The phenomenon of slow extension of materials having constant load, i.e. increasing with the time is calledcreeping[other wrong options] [Discuss in forum] yielding breaking none of these. |

Q15 ⇒ A triangular section having base b, height h, is placed with its base horizontal. If the shear stress at a depth y from top is q, the maximum shear stress is.3S/bh[other wrong options] [Discuss in forum] 4S/bh 4b/Sh 3b/bS |

Q16 ⇒ An arch with three hinges, is a structure.statically determinate[other wrong options] [Discuss in forum] statically indeterminate geometrically unstable structurally sound but indeterminate |

Q17 ⇒ The deflection of any rectangular beam simply supported, is.inversely proportional to the cube of its depth[other wrong options] [Discuss in forum] directly proportional to its weight inversely proportional to its width directly proportional to the cube of its length |

Q18 ⇒ If a shaft is simultaneously subjected to a toque T and a bending moment M, the ratio of maximum bending stress and maximum shearing stress is.2M/T[other wrong options] [Discuss in forum] M/T T/M MT/2 |

Q19 ⇒ The region of the cross-section of a column in which compressive load may be applied without producing any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, isone-quarter of the radius[other wrong options] [Discuss in forum] one-half of the radius one-third of the radius one-fifth of the radius |

Q20 ⇒ Dimensional formula for modulus of elasticity
is[ML^{-1}T^{-2}][other wrong options] [Discuss in forum] [MLT ^{-2}] [ML ^{-2}T^{-1}] [ML ^{-2}T^{-2}] |

Or |