Reversible

Irreversible

Reversible or irreversible

None of these

**A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions…****The stress developed in a material at breaking point in extension is called****The polytropic index (n) is given by****When a body is subjected to a direct tensile stress (σx) in one plane accompanied by a simple shear…****The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ =…****Euler's formula holds good only for****In a uniform bar, supported at one end in position, the maximum stress under self weight of bar shall…****Resilience is the****Those substances which have so far not been resolved by any means into other substances of simpler form…****The deformation of a bar under its own weight compared to the deformation of same body subjected to…****A circular shaft fixed at, A has diameter D for half of its length and diameter D/2 over the other half,…****The value of shear stress which is induced in the shaft due to the applied couple varies****The natural petroleum may be separated into****A vertical column has two moments of inertia (i.e. Ixx and Iyy ). The column will tend to buckle in…****For the same compression ratio, the efficiency of dual combustion cycle is****The value of 1 mm of Hg is equal to****Reversed joule cycle is called****The entropy __________ in an irreversible cyclic process.****A coil is cut into two halves, the stiffness of cut coil will be****A mixture of gas expands from 0.03 m3 to 0.06 m3 at a constant pressure of 1 MPa and absorbs 84 kJ of…****The gas in cooling chamber of a closed cycle gas turbine is cooled at****The distillation carried out in such a way that the liquid with the lowest boiling point is first evaporated…****The value of Poisson's ratio for steel is between****The section modulus of a circular section about an axis through its C.G., is****Mond gas is obtained by****If the slenderness ratio for a column is 100, then it is said to be a _________ column.****True stress strain-curve for materials is plotted between****In order to know whether a column is long or short, we must know its****According to Kelvin-Planck's statement of second law of thermodynamics,****Which of the following has the highest calorific value?**