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Within classic limit, the ratio of lateral strain to the linear strain is known as0 AnswerWithin classic limit, the ratio of lateral strain to the linear strain is known as1 AnswerConsider the singly reinforced beam shown in the figure below:At cross-section XX, which of the following statements is TRUE at the limit state? - gate civil 2017 1 AnswerThe true stress (σ) - true strain ( ) diagram of a strain hardening material is shown in figure. First, there is loading up to point A, i.e., up to stress of 500 MPa and strain of 0.5. (Gate 2018 Mechanical engineering)0 AnswerA rod of length 20mm is stretched to make a rod of length 40 mm. Subsequently, it is compressed to make a rod of final length 10 mm. Consider the longitudinal tensile strain as positive and compressive strain as negative. The total true longitudinal strain in the rod is _______1 AnswerConsider the stress-strain curve for an ideal elastic-plastic strain hardening metal as shown in the figure. The metal was loaded in uniaxial tension starting from O. Upon loading, the stress-strain curve passes through initial yield point at P, and then strain hardens to point Q, where the loading was stopped. From point Q, the specimen was unloaded to point R, where the stress is zero. If the same specimen is reloaded in tension from point R, the value of stress at which the material yields again is _________ MPa.0 AnswerSemiconductor strain gages typically have much higher gage factors than those of metallic strain gages, primarily due to: GATE-Instrumentation-Engineering-20141 AnswerAn element is subjected to biaxial normal tensile strains of 0.0030 and 0.0020. The normal strain in the plane of maximum shear strain is0 AnswerThe uniaxial stress-strain behavior of a rock sample is shown in the figure. The elastic modulus E is 20,000 MPa. If p is the plastic strain, the value of the damage parameter D (rounded off to two decimal place) is _________.0 AnswerThe ‘plane section remains plane’ assu mption in bending theory implies: GATE- Civil Engineering- 20131 AnswerFor a given loading on a rectangular plain concrete beam with an overall depth of 500 mm, the compressive strain and tensile strain developed at the extreme fibers are of the same magnitude of 2.5×10-4 . The curvature in the beam cross-section (in m1 , round off to 3 decimal places), is __________0 AnswerWhen a specimen of M25 concrete is loaded to a stress level of 12.5 MPa, a strain of 500×106 is recorded. If this load is allowed to stand for a long time, the strain increases to 1000×106 .0 AnswerThe main theme of the passage is A. the need to sleep eight hours a day B. ways to reduce mental strain C. the connection between visual images and strain D. the necessity of controlling one's vision0 AnswerIn the engineering stress-strain curve for mild steel, the Ultimate Tensile Strength (UTS) refers to1 AnswerA plane-strain compression (forging) of a block is shown in the figure. The strain in the z-direction is zero. The yield strength (Sy) in uniaxial tension/compression of the material of the block is 300 MPa and it follows the Tresca (maximum shear stress) criterion. Assume that the entire block has started yielding. At a point where 40 MPa (compressive) and 0, x xy the stress component y is0 AnswerT he property that CANNOT be determined from uniaxial compressive strength test of a rock sample fitted with strain gauges is1 AnswerA bimetallic cylindrical bar of cross sectional area 1 m2 is made by bonding Steel and Aluminium as shown in the figure. To maintain tensile axial strain of magnitude 6 10 in Steel bar and compressive axial strain of magnitude 6 10 in Aluminum bar, the magnitude of the required force P (in kN) along the indicated direction is (Gate 2018 Mechanical engineering)0 AnswerIn a linearly hardening plastic material, the true stress beyond initial yielding (gate 2018 Mechanical engineering)0 AnswerA bar is compressed to half of its original length. The magnitude of true strain produced in the deformed bar is (Gate 2018 Mechanical engineering)1 AnswerThe differential amplifier is connected as shown in the figure(b) above to a single strain gage bridge. Let the strain gage resistance vary around its no load resistance R by ±1%. GATE-Instrumentational-Engineering-20131 Answer
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