A heat exchange process in which the product of pressure and volume remains constant is known as Throttling process Heat exchange process Isentropic process Hyperbolic process TRUE ANSWER : ? YOUR ANSWER : ?
A process of heating crude oil to a high temperature under a very high pressure to increase the yield of lighter distillates, is known as Carbonization Cracking Fractional distillation Full distillation TRUE ANSWER : ? YOUR ANSWER : ?
The compression ratio for petrol engines is 15 to 30 3 to 6 5 to 8 10 to 20 TRUE ANSWER : ? YOUR ANSWER : ?
Kinetic theory of gases assumes that the collisions between the molecules are Perfectly inelastic Partly elastic Perfectly elastic Partly inelastic TRUE ANSWER : ? YOUR ANSWER : ?
An isolated system is one in which Mass does not cross boundaries of the system, though energy may do so Neither mass nor energy crosses the boundaries of the system Both energy and mass cross the boundaries of the system Mass crosses the boundary but not the energy TRUE ANSWER : ? YOUR ANSWER : ?
Characteristic gas constant of a gas is equal to Cp + Cv Cv /Cp Cp - Cv Cp /Cv TRUE ANSWER : ? YOUR ANSWER : ?
According to Avogadro's Hypothesis The molecular weights of all the perfect gases occupy the same volume under same conditions of pressure and temperature The sum of partial pressure of mixture of two gases is sum of the two Gases have two values of specific heat Product of the gas constant and the molecular weight of an ideal gas is constant TRUE ANSWER : ? YOUR ANSWER : ?
Those substances which have so far not been resolved by any means into other substances of simpler form are called Elements Atoms Molecules Compounds TRUE ANSWER : ? YOUR ANSWER : ?
The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio) 1 - (1/r) γ - 1/ γ 1 - (1/r) γ/γ - 1 1 - rγ - 1 rγ - 1 TRUE ANSWER : ? YOUR ANSWER : ?
According to First law of thermodynamics, Total internal energy of a system during a process remains constant Internal energy, enthalpy and entropy during a process remain constant Total energy of a system remains constant Work-done by a system is equal to the heat transferred by the system TRUE ANSWER : ? YOUR ANSWER : ?