cv/ cp =R

cp - cv = R

cv = R/ γ-1

Both (B) and (C)

**A composite shaft consisting of two stepped portions having spring constants K₁ and K₂…****The value of shear stress which is induced in the shaft due to the applied couple varies****When a body is subjected to a direct tensile stress (σx) in one plane accompanied by a simple shear…****According to Kelvin-Planck's statement, a perpetual motion of the __________ is impossible.****Which of the following statement is incorrect?****The point of contraflexure is a point where****Flow stress corresponds to****The compression ratio for petrol engines is****The efficiency of Diesel cycle approaches to Otto cycle efficiency when****The maximum shear stress, in the given figure, is equal to __________ of the Mohr's circle.****The shape of cantilever for uniformly distributed load will be****A steel bar of 5 mm is heated from 25°C to 45°C and it is free to expand. The bar will induce****A body is subjected to a direct tensile stress of 300 MPa in one plane accompanied by a simple shear…****The strain energy stored in a solid circular shaft subjected to shear stress (τ), is: (Where G…****The strain energy stored in a solid circular shaft in torsion, subjected to shear stress (τ), is:…****The limit of eccentricity for no tensile conditions for a column of circular section of diameter (D)…****The distance between the centres of the rivets in adjacent rows of zigzag riveted joint is known as****The oxygen atom is ________ times heavier than the hydrogen atom.****The heat and work are mutually convertible. This statement is called __________ law of thermodynamics.****The molecular mass expressed in gram (i.e. 1 g - mole) of all gases, at N. T. P., occupies a volume…****One kilowatt is equal to****In a reversible adiabatic process, the ratio of T1/T2 is equal to****The efficiency of Carnot cycle depends upon****The bending stress in a beam is _________ section modulus.****If the rivets in adjacent rows are staggered and the outermost row has only one rivets, the arrangement…****The point of contra flexure is a point where****If the depth is kept constant for a beam of uniform strength, then its width will vary in proportional…****Petrol is distilled at****When a gas is heated, change takes place in****Workdone in a free expansion process is**