Description : The ratio of stress to volumetric strain is called a) Shear Modulus b) Young’s Modulus c) Bulk Modulus d) Modulus of elasticity
Last Answer : c) Bulk Modulus
Description : The ratio of shear stress to shear strain is a) Shear modulus b)Young’s Modulus c) Bulk Modulus d)None of above
Last Answer : b)Young’s Modulus
Description : The deformation of a solid when stress is applied is called a) Strain b) Elasticity c) Rigidity d) Pressure
Last Answer : a) Strain
Description : The ability of a body to return to its original shape is called: a) Plasticity b) Elasticity c) Strain d) Stress
Last Answer : b) Elasticity
Description : The ratio of shear stress and shear strain of an elastic material, is (A) Modulus of Rigidity (B) Shear Modulus (C) Modulus of Elasticity (D) Both (a) and (b)
Last Answer : (D) Both (a) and (b)
Description : Modulus of elasticity is defined as: A. The stress at the proportional limit B. The stress-strain ratio within the proportional limit
Last Answer : B. The stress-strain ratio within the proportional limit
Description : The Modulus of Elasticity for a material refers to: w) the ability of a material to resist corrosion x) the ratio of stress over strain y) the maximum load over the cross sectional area z) none of the above
Last Answer : ANSWER: X -- THE RATIO OF STRESS OVER STRAIN
Description : Stiffness of material is measured by, A. Proportional unit B. Modules of elasticity C. Stress/ strain
Last Answer : B. Modules of elasticity
Description : Bulk modulus of a fluid is the ratio of (A) Shear stress to shear strain (B) Increase in volume to the viscosity of fluid (C) Increase in pressure to the volumetric strain (D) Critical velocity to the viscosity of fluid
Last Answer : Answer: Option C
Description : When stress is increased beyond elastic limit and material is permanently changed this property is a) Permanent stress b) Elasticity c) Yield strength d) Plasticity
Last Answer : d) Plasticity
Description : Bulk modulus of elasticity is a. Tensile stress / Tensile strain b. Shear stress / Shear strain c. Tensile stress / Shear strain d. Normal stress on each face of cube / Volumetric strain
Last Answer : d. Normal stress on each face of cube / Volumetric strain
Description : Young’s Modulus of elasticity is (a)Tensile stress / Tensile strain (b)Shear stress / Shear strain (c)Tensile stress / Shear strain (d)Shear stress / Tensile strain
Last Answer : a)Tensile stress / Tensile strain
Description : The ratio of lateral strain to linear strain is called (a) Modulus of Elasticity (b) Modulus of Rigidity (c) Bulk Modulus (d) Poisson’s Ratio
Last Answer : (d) Poisson’s Ratio
Description : Reciprocal of resistivity is called a. Resistance b. Inductance c. Conductivity d. Flexibility
Last Answer : c. Conductivity
Description : The modulus of rigidity is the ratio of (1) Longitudinal stress to longitudinal strain (2) Volume stress to volume strain (3) Shearing stress to shearing strain (4) Tensile stress to tensile strain
Last Answer : (3) Shearing stress to shearing strain Explanation: In materials science, shear modulus or modulus of rigidity, denoted by G, or sometimes S , is defined as the ratio of shear stress to the shear ... the case of an object that's shaped like a rectangular prism, it will deform into a parallelepiped.
Description : Ratio of tensile to strain is A. Young's modulus B. stress C. stiffness D. tensile force
Last Answer : Young's modulus
Description : If C is creep coefficient, f is original pre-stress in concrete, m is modular ratio, E is Young's modulus of steel and e is shrinkage strain, the combined effect of creep and shrinkage is: (A) (1 - C)mf - eE B) (C - 1)mf + eE (C) (C - 1)mf - eE (D) (1 - C)mf + eE
Last Answer : Answer: Option B
Description : The modulus of rigidity is the ratio of (1) longitudinal stress to longitudinal strain (2) Volume stress to volume strain (3) shearing stress to shearing strain (4) tensile stress to tensile strain
Last Answer : shearing stress to shearing strain
Description : The modular ratio is the ration of (a) Young’s modulus of steel to the young’s modulus of concrete (b) Young’s modules of concrete to the young’s modulus of steel (c) Load carried by steel to the load carried by concrete. (d) Load carried by concrete to the load carried by step.
Last Answer : (c) Load carried by steel to the load carried by concrete.
Description : The dimensional formula ML⁻¹T⁻² corresponds to – (1) Modulus of elasticity (2) Viscosity (3) Moment of a force (4) Thrust
Last Answer : (1) Modulus of elasticity Explanation: M Li- T-2 is the dimension of any quantity that is force per unit area such as Pressure or Stress, Young's Modulus, Bulk Modulus, Modulus of Rigidity, ... the ratio of the stress applied to a body or substance to the resulting strain within the elastic limit.
Description : The bulk modulus of elasticity (A) Has the dimensions of 1/pressure (B) Increases with pressure (C) Is large when fluid is more compressible (D) Is independent of pressure and viscosity
Description : The dimensional formula ML–1T –2 corresponds to (1) Modulus of elasticity (2) Viscosity (3) Moment of a force (4) Thrust
Last Answer : Modulus of elasticity
Description : The maximum stress that a body can tolerate is called: a) UTS b) Permanent stress c) Elastic strength d) Plastic stress
Last Answer : a) UTS
Description : If M, I, R, E, F, and Y are the bending moment, moment of inertia, radius of curvature, modulus of elasticity stress and the depth of the neutral axis at section, then (A) M/I = R/E = F/Y (B) I/M = R/E = F/Y (C) M/I = E/R = E/Y (D) M/I = E/R = Y/F
Last Answer : (C) M/I = E/R = E/Y
Description : Young's modulus is defined as A. tensile strain/tensile stress B. tensile stress/tensile strain C. tensile stress × tensile strain D. length/area
Last Answer : tensile stress/tensile strain
Description : Strain energy of a member may be equated to (A) Average resistance × displacement (B) ½ stress × strain × area of its cross-section (C) ½ stress × strain × volume of the member (D) ½ (stress)2 × volume of the member + Young's modulus E
Last Answer : (D) ½ (stress)2 × volume of the member + Young's modulus E
Description : Modulus of rigidity is (a)Tensile stress / Tensile strain (a)Shear stress / Shear strain (a)Tensile stress / Shear strain (a)Shear stress / Tensile strain
Last Answer : (a)Shear stress / Shear strain
Description : Sensitivity of a galvanometer can be increased by a) Increasing the number of turns of the coil b) Decreasing the magnetic field c) Increasing the ratio c ⁄BAN d) Decreasing the area of the coil
Last Answer : a) Increasing the number of turns of the coil
Description : Specific energy consumption of an electric train is the ratio between (A) Specific energy output at driving wheels and efficiency of the traction motor (B) Specific energy output at driving wheels ... (D) Specific energy output at driving wheels and efficiency of the (motor + transmission gear)
Last Answer : Specific energy consumption of an electric train is the ratio between Specific energy output at driving wheels and efficiency of the (motor + transmission gear)
Description : What is the maximum value of deforming force upto which a material shows elastic property and above which the material loses it? (1) Elasticity (2) Strain (3) Elastic Limit (4) Stress
Last Answer : (3) Elastic Limit Explanation: The Maximum Extent to which a solid may be stretched without permanent alteration of size or shape.
Description : What is the maximum value of deforming force up to which a material shows elastic property and above which the material loses it? (1) Elasticity (2) Strain (3) Elastic Limit (4) Stress
Last Answer : (4) Elastic Limit Explanation: The Maximum Extent to which a solid may be stretched without permanent alteration of size or shape.
Description : The deformation per unit length is called (a) Strain (b) Stress (c) Elasticity (d) None of these
Last Answer : (a) Strain
Description : A steel bar 5 m × 50 mm is loaded with 250,000 N. If the modulus of elasticity of the material is 0.2 MN/mm2 and Poisson's ratio is 0.25, the change in the volume of the bar is: (A) 1.125 cm3 (B) 2.125 cm3 (C) 3.125 cm3 (D) 4.125 cm
Last Answer : (C) 3.125 cm
Description : If E, N, K and 1/m are modulus of elasticity, modulus of rigidity. Bulk modulus and Poisson ratio of the material, the following relationship holds good (A) E = 3K (1 - 2/m) (B) E = 2N (1 + 1/m) (C) (3/2)K (1 - 2/m) = N (1 + 1/m) (D) All the above
Last Answer : (D) All the above
Description : Which one of the following statements is not correct with respect to PSC beams? (a) Loss due to shrinkage is proportional to water-cement ratio used in concrete (b) Loss due to creep is ... to the modulus of elasticity of concrete (d) Loss due to friction occurs in post tensioned concrete members
Last Answer : (c) Loss due to elastic deformation is directly proportionally to the modulus of elasticity of concrete
Description : Modulus of elasticity of concrete is increased with (a) Higher W/C ratio (b) Shorter curing period (c) Lesser vibration (d) Increase in age
Last Answer : (d) Increase in age
Description : The modules of elasticity of steel shall be taken as (a) 100kN/mm2 (b) 200 kN/mm2 (c) 250 kN/mm2 (d) 300 kN/mm2
Last Answer : (b) 200 kN/mm2
Description : An open-ended cylinder of radius and thickness is subjected to internal pressure . The Young's modulus for the material is and Poisson's ratio is . The longitudinal strain is (A) Zero (B) pr/TE (C) pr/2TE (D) None of these
Last Answer : (A) Zero
Description : According to Newton's law of viscosity, the shear stress on a layer of a fluid is __________ to the rate of shear strain. (A) Equal to (B) Directly proportional (C) Inversely proportional (D) None of these
Description : Newton's law of viscosity is a relationship between (A) Pressure, velocity and temperature (B) Shear stress and rate of shear strain (C) Shear stress and velocity (D) Rate of shear strain and temperature
Description : Compressor wizards, share your wisdom?
Last Answer : There is this chap that bought a small compressor for electronics dusting purposes and compared it to a normal blower style duster. The compressor was a complete failure.
Description : How would you handle UPS packages with this setup?
Last Answer : Pick them up from the depot…
Description : Q-12 which Testing is used in high thickness job in LNT?
Last Answer : Ultrasonic Testing.
Description : Q-11 What is the purpose of dust free zone in LNT?
Last Answer : Special dust-free enclosures with temperature and humidity control enable the Company to achieve manufacturing excellence in Class 1 nuclear island components. L&T manufactures reactor vessels, steam ... and Heat Exchangers are manufactured within dust-free enclosures at L&T's workshops.
Description : Q-10 In TANDEM SAW process, why AC and DC both currents are used?
Last Answer : AC will melt the base metal and make weld pool in the base metal and by DC it will fill the weld metal in the weld pool.
Description : Q-9 how many electrodes are used in the TANDEM SAW? What is the polarity of the both electrode?
Last Answer : In TANDEM SAW process there are more than one electrode is used. But for first electrode alternative current and for second electrode direct current shall be used.
Description : Q-8 which types of SAW process are used in Larsen and Toubro?
Last Answer : Tandem SAW Narrow groove application As the section thickness of vessel for nuclear and petroleum industry increase, the desire for reduced weld time and material consumption has driven the joint on ... process is carried out. LNT practice that for many of high thickness nuclear pressure vessel.
Description : Q-7 during welding process, why sinusoidal wave form is converted in to the square wave form?
Last Answer : In sinusoidal wave, we get maximum energy at one point only. So for the more amount of maximum energy we can get by converting the sinusoidal wave form in to the square wave form, and more penetration and deposition rate is achieved due to maximum energy.
Description : Q-6 which innovative welding technique is used by L & T in T joint welding?
Last Answer : In T joint welding backing is required in other side while welding on one side. Flux goes on another side from the root opening and that has to be removed before welding other side. During the ... of the job is also not required by other sources since one side of welding serve the purpose.
Description : Q-5 what is the phenomena behind the overhead welding?
Last Answer : In overhead welding during welding flux has more fluidity and comes on the surface when the metal is deposited in the root gape. There are different freezing point metal and the flux. so metal have low ... deposit in the root gape and flux have a high freezing point so its deposit on the metal .