The maximum energy that a given component can absorb without undergoing any permanent deformation up to its elastic limit is known as:
ByN Lavanya Posted onNovember 20, 2023
A) ToughnessB) Proof ResilienceC) DuctilityD) Malleability According to IS 800:2007, Clause 2, Proof resilience is defined as the maximum strain energy that a material can absorb per unit volume without any permanent deformation. This is an important design consideration as it indicates the ability of a material/component to absorb shock and impact loads by undergoing…
Read More The maximum energy that a given component can absorb without undergoing any permanent deformation up to its elastic limit is known as:
If a piece of material neither expands nor contracts in volume when subjected to stress, then the Poisson’s ratio must be:
ByN Lavanya Posted onNovember 20, 2023
A) 0B) 0.25C) 0.5D) 1 According to IS 456:2000, Clause 6.2, Poisson’s ratio is defined as the ratio of transverse strain to axial strain. For a material that does not change in volume under stress, the transverse and axial strains must be equal in magnitude but opposite in sign. Therefore, the Poisson’s ratio for such…
Read More If a piece of material neither expands nor contracts in volume when subjected to stress, then the Poisson’s ratio must be:
The internal diameter of a cast iron pipe is 300 mm and its thickness is 10 mm. If the pipe is supported at two points 8 m apart, what is the internal cross-sectional area of the pipe as per IS:1239 (Part 1)?
ByN Lavanya Posted onNovember 18, 2023
A) 0.0707 m2B) 0.0616 m2C) 0.0524 m2D) 0.0491 m2 As per IS 1239 (Part 1)-2004 for Pipes, the internal diameter is 300 mm or 0.3 m. The internal radius r = (Internal diameter/2) = 0.3/2 = 0.15 m The internal cross-sectional area A = πr2= π x (0.15)2= 0.0707 m2 Therefore, option A is the…
Read More The internal diameter of a cast iron pipe is 300 mm and its thickness is 10 mm. If the pipe is supported at two points 8 m apart, what is the internal cross-sectional area of the pipe as per IS:1239 (Part 1)?
If a part is constrained to move and heated, it will develop:
ByN Lavanya Posted onNovember 18, 2023
A) Tensile stressB) Compressive stressC) Shear stressD) No stress Explanation: As per theory of thermal stresses, when a body is restricted from free expansion or contraction, it develops internal stresses when subjected to change in temperature. If a constrained part is heated, it tends to expand. But restriction to movement causes development of compressive stresses…
Read More If a part is constrained to move and heated, it will develop:
A fixed beam of span L is subjected to a central point load P. What are the number of points of contraflexure and their respective positions from the left support?
ByN Lavanya Posted onNovember 18, 2023
A) 2 points , at L/4 and 3L/4 from left supportB) 1 point , at L/2 from left supportC) 3 points , at L/3, L/2 and 2L/3 from left supportD) No point of contra flexure Reference:As per theory of structural analysis, in a fixed beam with a central point load, there are two points of…
Read More A fixed beam of span L is subjected to a central point load P. What are the number of points of contraflexure and their respective positions from the left support?
$A round bar specimen is subjected to a tensile test. After fracture, it is observed that the diameter at the fractured section remains approximately the same as the original diameter. What material was the round bar most likely made of?$
A round bar specimen is subjected to a tensile test. After fracture, it is observed that the diameter at the fractured section remains approximately the same as the original diameter. What material was the round bar most likely made of?
ByN Lavanya Posted onNovember 18, 2023
A) Mild steelB) Cast ironC) AluminumD) Copper Explanation: As per IS 1608, when a ductile material like mild steel is subjected to tensile test, it undergoes significant plastic deformation before failure. This causes necking at the fractured section, where the diameter reduces substantially. However, brittle materials like cast iron and aluminum do not undergo plastic…
Read More A round bar specimen is subjected to a tensile test. After fracture, it is observed that the diameter at the fractured section remains approximately the same as the original diameter. What material was the round bar most likely made of?
A rectangular concrete beam has a width of 300 mm and a depth of 500 mm. It is subjected to a shear force of 20 kN. What is the shear stress at a depth of 150 mm from the neutral axis?
ByN Lavanya Posted onNovember 16, 2023
A) 1.33 N/mm2B) 2.67 N/mm2C) 4 N/mm2D) 5.33 N/mm2 Reference:As per IS 456:2000, the shear stress formula is:τ = VQ/IbWhere,τ – Shear stressV – Shear forceQ – First moment of area above or below the neutral axisI – Moment of inertiab – Width of beam For a rectangular section, I = bd3/12Q = A x…
Read More A rectangular concrete beam has a width of 300 mm and a depth of 500 mm. It is subjected to a shear force of 20 kN. What is the shear stress at a depth of 150 mm from the neutral axis?

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