Q. The efficiency of the Carnot cycle is (where T1 and T2 = Highest and lowest temperature during the cycle)

View solution

Q. The mass of excess air supplied is equal to

View solution

Q. The atomic mass of sulphur is

View solution

Q. A path 1-2-3 is given. A system absorbs 100 kJ as heat and does 60 kJ of work while along the path 1-4-3, it does 20 kJ of work. The heat absorbed during the cycle 1-4-3 is

View solution

Q. The atomic mass of an element is the number of times the atom of that element is heavier than the hydrogen atom.

View solution

Q. A cycle consisting of two isothermal and two isentropic processes, is known as

View solution

Q. When a perfect gas is expanded through an aperture of minute dimensions, the process is known as

View solution

Q. Steam coal is a

View solution

Q. In a reversible adiabatic process, the ratio of T1/T2 is equal to

View solution

Q. The kinetic energy per kg molecule of any gas at absolute temperature T is equal to (where Ru = Universal gas constant)

View solution

Q. The atomic mass of nitrogen is __________ oxygen.

View solution

Q. The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ = Ratio of specific heats)

View solution

Q. In an ideal gas turbine plant, it is assumed that the compression and expansion processes are

View solution

Q. When gas is heated at constant pressure, the heat supplied is utilised in

View solution

Q. The amount of heat required to raise the temperature of 1 kg of water through one Kelvin is called

View solution

Q. When wood is heated with a limited supply of air to a temperature not less than 280°C, the resulting fuel is

View solution

Q. The heat energy stored in the gas and used for raising the temperature of the gas is known as

View solution

Q. A cycle consisting of two constant pressure and two isentropic processes is known as

View solution

Q. When the gas is heated at constant pressure, the heat supplied

View solution

Q. The __________ states that change of internal energy of a perfect gas is directly proportional to the change of temperature.

View solution