Which is the false statement about true stress strain method?
It does not exist
It is more sensitive to changes in both metallurgical and mechanical conditions
It gives a more accurate picture of the ductility
It can be correlated with stress strain values in other tests like torsion, impact, combined stress tests etc.
Correct Answer :
A. It does not exist
Related Questions
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Charles' law
Gay-Lussac law
All of these
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W1 - 2 = 0
Q1 - 2 = 0
dU = 0
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Either (A) or (B)
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8 tonnes/ cm²
16 tonnes/ cm²
22 tonnes/ cm²
Workdone in a free expansion process is
Zero
Minimum
Maximum
Positive
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More
Less
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More/less depending on composition
Shear modulus is the ratio of
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Linear stress to lateral strain
Volumetric strain to linear strain
Shear stress to shear strain
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Not deform
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Decrease
Remain unchanged
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The sum of internal energy (U) and the product of pressure and volume (p.v) is known as
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Entropy
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Hyperbolic process
Adiabatic process
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Temporary
Semi-permanent
None of these
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Lap joint
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220° to 345°C
345° to 470°C
470° to 550°C
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Principal stresses
Normal stresses on planes at 45°
Shear stresses on planes at 45°
Normal and shear stresses on a plane
When a body is subjected to a direct tensile stress (σx) in one plane accompanied by a simple shear stress (τxy), the maximum normal stress i
(σx/2) + (1/2) × √(σx² + 4 τ²xy)
(σx/2) - (1/2) × √(σx² + 4 τ²xy)
(σx/2) + (1/2) × √(σx² - 4 τ²xy)
(1/2) × √(σx² + 4 τ²xy)
The heat absorbed or rejected by the working substance is given by (where ds = Increase or decrease of entropy, T = Absolute temperature, and dQ = Heat absorbed or rejected)
δQ = T.ds
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-80 kJ
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Fatigue
Creep
Shock loading
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Isothermal expansion
Isentropic expansion
Isothermal compression
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The atomic mass of oxygen is
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14
16
32
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wl/4
wl/2
wl
wl²/2
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Thermodynamic cycle
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Thermodynamic law
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Atomic mass of the gas and the gas constant
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Middle of bar
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Bottom end
None of these
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t
2t
4t
8t
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Charles' law
Gay-Lussac law
Avogadro's law