Engineering Thermodynamics
Which of the following processes are thermodynamically reversible?

Isothermal and adiabatic
Throttling
Free expansion
Constant volume and constant pressure

ANSWER DOWNLOAD EXAMIANS APP

Engineering Thermodynamics
Carbonization of coal consists of

Heating the wood with a limited supply of air to temperature not less than 280°C
Moulding the finely ground coal under pressure with or without a binding material
Drying and crushing the coal to a fine powder
None of these

ANSWER DOWNLOAD EXAMIANS APP

Engineering Thermodynamics
According to Kelvin-Planck’s statement of second law of thermodynamics,

It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work
None of these
It is impossible to construct a device which operates in a cyclic process and produces no effect other than the transfer of heat from a cold body to a hot body
It is possible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work

ANSWER DOWNLOAD EXAMIANS APP

Engineering Thermodynamics
The mass of flue gas per kg of fuel is the ratio of the

Mass of carbon in 1 kg of fuel to the mass of carbon in 1 kg of flue gas
Mass of carbon in 1 kg of flue gas to the mass of carbon in 1 kg of fuel
Mass of oxygen in 1 kg of flue gas to the mass of oxygen in 1 kg of fuel
Mass of oxygen in 1 kg of fuel to the mass of oxygen in 1 kg of flue gas

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Engineering Thermodynamics