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MCQs 1: In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile stress is_________________?

more less same more/less depending on composition may have any value
Answer Explanation

MCQs 2: Which of the following has no unit __________________?

kinematic viscosity surface tension bulk modulus strain elasticity
Answer Explanation

MCQs 3: During a tensile test on a specimen of 1 cm cross-section, maximum load observed was 8 tonnes and area of cross-section at neck was 0.5 cm2. Ultimate tensile strength of specimen is___________________?

4 tonnes/cm2 8 tonnes/cm2 16 tonnes/cm2 22 tonnes/cm2 none of the above
Answer Explanation

MCQs 4: The intensity of stress which causes unit strain is called_______________?

unit stress bulk modulus modulus of rigidity modulus of elasticity principal stress
Answer Explanation

MCQs 5: The Young’s modulus of a wire is defined as the stress which will increase the length of wire compared to its original length________________?

half same amount double one-fourth four times
Answer Explanation

MCQs 6: Tensile strength of a material is obtained by dividing the maximum load during the test by the_________________?

area at the time of fracture original cross-sectional area average of A. and B. minimum area after fracture none of the above
Answer Explanation

MCQs 7: If the radius of wire stretched by a load is doubled, then its Young’s modulus will be_______________?

doubled halved become four times become one-fourth remain unaffected
Answer Explanation

MCQs 8: A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions noted with increasing loads will behave as under_________________?

uniform throughout increase uniformly first increase and then decrease increase uniformly first and then increase rapidly increase rapidly first and then uniformly
Answer Explanation

MCQs 9: The ultimate tensile stress of mild steel compared to ultimate compressive stress is__________________?

same more less more or less depending on other factors unpredictable
Answer Explanation

MCQs 10: Modulus of rigidity is defined as the ratio of_________________?

longitudinal stress and longitudinal strain volumetric stress and volumetric strain lateral stress and lateral strain shear stress and shear strain linear stress and lateral strain
Answer Explanation

MCQs 11: It equal and opposite forces applied to a body tend to elongate it, the stress so produced is called______________________?

internal resistanpe tensile stress transverse stress compressive stress working stress
Answer Explanation

MCQs 12: The unit of Young’s modulus is__________________?

mm/mm kg/cm kg kg/cm2 kg cm2
Answer Explanation

MCQs 13: Hooke’s law holds good up to____________________?

yield point limit of proportionality breaking point elastic limit plastic limit
Answer Explanation

MCQs 14: The stress developed in a material at breaking point in extension is called__________?

Breaking stress Fracture stress Yield point stress Proof stress
Answer Explanation

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