A nozzle is a device, which Increases both kinetic energy and pressure Reduces kinetic energy and increases pressure Reduces both kinetic energy and pressure Increases kinetic energy and decreases pressure TRUE ANSWER : ? YOUR ANSWER : ?
After throttling, gas temperature Remains same Decreases Increases May increase or decrease ; depends on the nature of the gas TRUE ANSWER : ? YOUR ANSWER : ?
The internal energy of an incompressible fluid depends upon its Pressure Neither A nor B Both A & B Temperature TRUE ANSWER : ? YOUR ANSWER : ?
A liquid under pressure greater than its vapour pressure for the temperature involved is called a __________ liquid. Non-solidifiable Saturated None of these Subcooled TRUE ANSWER : ? YOUR ANSWER : ?
Fugacity and pressure are numerically not equal for the gases At low temperature and high pressure Both A and B At standard state In ideal state TRUE ANSWER : ? YOUR ANSWER : ?
Out of the following refrigeration cycles, which one has maximum COP? Carnot cycle Air cycle Vapor compression with a reversible expansion engine Ordinary vapor compression cycle TRUE ANSWER : ? YOUR ANSWER : ?
Number of components (C), phase (P) and degrees of freedom (F) are related by Gibbs phase rule as P + F - C = 2 C = P - F + 2 P = F - C - 2 F = C - P - 2 TRUE ANSWER : ? YOUR ANSWER : ?
Entropy change of the reaction, H₂O(liquid) H₂O(gas), is termed as the enthalpy of Formation Solution Vaporisation Formation TRUE ANSWER : ? YOUR ANSWER : ?
First law of thermodynamics deals with the Direction of energy transfer Reversible processes only Irreversible processes only None of these TRUE ANSWER : ? YOUR ANSWER : ?
During Joule-Thomson expansion of gases Temperature remains constant Entropy remains constant Enthalpy remains constant None of these TRUE ANSWER : ? YOUR ANSWER : ?