A series of operations, which takes place in a certain order and restore the initial conditions at the end, is known as
A series of operations, which takes place in a certain order and restore the initial conditions at the end, is known as
Diesel cycle consists of __________ processes.
Diesel cycle consists of __________ processes.
The ratio of root mean square velocity to average velocity of gas molecules at a particular temperature is
The ratio of root mean square velocity to average velocity of gas molecules at a particular temperature is
A molecule consisting of one atom is known as
A molecule consisting of one atom is known as
The amount of heat required to raise the temperature of __________ water through one degree is called kilojoules.
The amount of heat required to raise the temperature of __________ water through one degree is called kilojoules.
The reading of the pressure gauge fitted on a vessel is 25 bar. The atmospheric pressure is 1.03 bar and the value of 'g' is 9.81 m/s2. The absolute pressure in the vessel is
The reading of the pressure gauge fitted on a vessel is 25 bar. The atmospheric pressure is 1.03 bar and the value of 'g' is 9.81 m/s2. The absolute pressure in the vessel is
A manufacturer claims to have a heat engine capable of developing 20 h.p. by receiving heat input of 400 kcal/mt and working between the temperature limits of 227° C and 27° C. His claim is
A manufacturer claims to have a heat engine capable of developing 20 h.p. by receiving heat input of 400 kcal/mt and working between the temperature limits of 227° C and 27° C. His claim is
The unit of energy in S.I. units is
The unit of energy in S.I. units is
One kg of carbon requires 4/3 kg of oxygen and produces ________ kg of carbon monoxide gas.
One kg of carbon requires 4/3 kg of oxygen and produces ________ kg of carbon monoxide gas.
Total heat of a substance is also known as
Total heat of a substance is also known as
Kelvin-Planck’s law deals with
Kelvin-Planck’s law deals with
Molecular volume of any perfect gas at 600 × 103 N/m² and 27°C will be
Molecular volume of any perfect gas at 600 × 103 N/m² and 27°C will be
One molecule of oxygen consists of __________ atoms of oxygen.
One molecule of oxygen consists of __________ atoms of oxygen.
The gas constant (R) is equal to the
The gas constant (R) is equal to the
Which of the following gas has the highest calorific value?
Which of the following gas has the highest calorific value?
The efficiency of Ericsson cycle is __________ Carnot cycle.
The efficiency of Ericsson cycle is __________ Carnot cycle.
For the same compression ratio, the efficiency of Diesel cycle is __________ Otto cycle.
For the same compression ratio, the efficiency of Diesel cycle is __________ Otto cycle.
Carbonization of coal consists of
Carbonization of coal consists of
Measurement of temperature is based on
Measurement of temperature is based on
According to kinetic theory of gases, the absolute zero temperature is attained when
According to kinetic theory of gases, the absolute zero temperature is attained when
Otto cycle is also known as
Otto cycle is also known as
The following cycle is used for air craft refrigeration
The following cycle is used for air craft refrigeration
Work done in a free expansion process is
Work done in a free expansion process is
The specific heat of air increases with increase in
The specific heat of air increases with increase in
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
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
The variables which control the physical properties of a perfect gas are
The variables which control the physical properties of a perfect gas are
The process is adiabatic, if the value of n in the equation pvn = C, is
The process is adiabatic, if the value of n in the equation pvn = C, is
The efficiency of Stirling cycle is __________ Carnot cycle.
The efficiency of Stirling cycle is __________ Carnot cycle.
According to which law, all perfect gases change in volume by 1/273th of their original volume at 0°C for every 1°C change in temperature when pressure remains constant
According to which law, all perfect gases change in volume by 1/273th of their original volume at 0°C for every 1°C change in temperature when pressure remains constant
The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio)
The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio)
The unit of time in S.I. units is
The unit of time in S.I. units is
In an isothermal process, the internal energy of gas molecules
In an isothermal process, the internal energy of gas molecules
The unit of temperature in S.I. units is
The unit of temperature in S.I. units is
The absolute zero temperature is taken as
The absolute zero temperature is taken as
The absolute zero pressure can be attained at a temperature of
The absolute zero pressure can be attained at a temperature of
The value of cp/cv for air is
The value of cp/cv for air is
The mass of flue gas per kg of fuel is the ratio of the
The mass of flue gas per kg of fuel is the ratio of the
Water contained in a beaker can be made to boil by passing steam through it
Water contained in a beaker can be made to boil by passing steam through it
The value of the product of molecular weight and the gas characteristic constant for all the gases in S.I. units is
The value of the product of molecular weight and the gas characteristic constant for all the gases in S.I. units is
When cut-off ratio is ________; the efficiency of Diesel cycle approaches to Otto cycle efficiency
When cut-off ratio is ________; the efficiency of Diesel cycle approaches to Otto cycle efficiency
The atomic mass of sulphur is
The atomic mass of sulphur is
In open cycle gas turbine plants
In open cycle gas turbine plants
When a gas is heated at constant pressure
When a gas is heated at constant pressure
Entropy change depends on
Entropy change depends on
One kg of carbon requires 4/3 kg of oxygen and produces __________ kg of carbon monoxide gas.
One kg of carbon requires 4/3 kg of oxygen and produces __________ kg of carbon monoxide gas.
The fuel mostly used in steam boilers is
The fuel mostly used in steam boilers is
Which of the following items is not a path function?
Which of the following items is not a path function?
The condition of perfect vacuum, i.e., absolute zero pressure can be attained at
The condition of perfect vacuum, i.e., absolute zero pressure can be attained at
Mixture of ice and water form a
Mixture of ice and water form a
Characteristic gas constant of a gas is equal to
Characteristic gas constant of a gas is equal to
Which of the following has the highest calorific value?
Which of the following has the highest calorific value?
The heat and mechanical energies are mutually convertible. This statement was established by
The heat and mechanical energies are mutually convertible. This statement was established by
The general law of expansion or compression is pvn = C, The process is said to be hyperbolic, if n is equal to
The general law of expansion or compression is pvn = C, The process is said to be hyperbolic, if n is equal to
An actual engine is to be designed having same efficiency as the Carnot cycle. Such a proposition is
An actual engine is to be designed having same efficiency as the Carnot cycle. Such a proposition is
First law of thermodynamics furnishes the relationship between
First law of thermodynamics furnishes the relationship between
Properties of substances like pressure, temperature and density, in thermodynamic coordinates are
Properties of substances like pressure, temperature and density, in thermodynamic coordinates are
For the same maximum pressure and temperature,
For the same maximum pressure and temperature,
Producer gas is obtained by
Producer gas is obtained by
When coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel, the process is known as __________ of fuel.
When coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel, the process is known as __________ of fuel.
A perfect gas at 27°C is heated at constant pressure till its volume is double. The final temperature is
A perfect gas at 27°C is heated at constant pressure till its volume is double. The final temperature is
The specific heat of water is
The specific heat of water is
Energy can neither be created nor destroyed but can be converted from one form to other is inferred from
Energy can neither be created nor destroyed but can be converted from one form to other is inferred from
In closed cycle gas turbine, the air is compressed
In closed cycle gas turbine, the air is compressed
The absolute zero pressure will be
The absolute zero pressure will be
The amount of heat required to raise the temperature of 1 kg of water through one Kelvin is called
The amount of heat required to raise the temperature of 1 kg of water through one Kelvin is called
The natural petroleum may be separated into
The natural petroleum may be separated into
Change in enthalpy of a system is the heat supplied at
Change in enthalpy of a system is the heat supplied at
During which of the following process does heat rejection takes place in Carnot cycle?
During which of the following process does heat rejection takes place in Carnot cycle?
The unit of power in S.I. units is
The unit of power in S.I. units is
The unit of length in S.I. units is
The unit of length in S.I. units is
The entropy may be expressed as a function of
The entropy may be expressed as a function of
According to Regnault's law, the specific heat at constant pressure (cp) and specific heat at constant volume (cv) _________ with the change in pressure and temperature of the gas.
According to Regnault's law, the specific heat at constant pressure (cp) and specific heat at constant volume (cv) _________ with the change in pressure and temperature of the gas.
For which of the following substances, the internal energy and enthalpy are the functions of temperature only
For which of the following substances, the internal energy and enthalpy are the functions of temperature only
According to Kelvin-Planck's statement, a perpetual motion of the __________ is impossible.
According to Kelvin-Planck's statement, a perpetual motion of the __________ is impossible.
If a gas is heated against a pressure, keeping the volume constant, then work done will be equal to
If a gas is heated against a pressure, keeping the volume constant, then work done will be equal to
Work-done in a free expansion process is
Work-done in a free expansion process is
Coke is produced
Coke is produced
The entropy of water at 0°C is assumed to be
The entropy of water at 0°C is assumed to be
The smallest quantity of a substance, which can exist by itself in a chemically recognizable form is known as
The smallest quantity of a substance, which can exist by itself in a chemically recognizable form is known as
The unit of mass in S.I. units is
The unit of mass in S.I. units is
A tri-atomic molecule consists of __________ atoms.
A tri-atomic molecule consists of __________ atoms.
The amount of heat generated per kg of fuel is known as
The amount of heat generated per kg of fuel is known as
According to Avogadro's Hypothesis
According to Avogadro's Hypothesis
The unit of pressure in S.I. units is
The unit of pressure in S.I. units is
An open cycle gas turbine works on
An open cycle gas turbine works on
Which of the following processes are thermodynamically reversible?
Which of the following processes are thermodynamically reversible?
Mond gas is obtained by
Mond gas is obtained by
One watt is equal to
One watt is equal to
When two bodies are in thermal equilibrium with a third body, they are also in thermal equilibrium with each other. This statement is called
When two bodies are in thermal equilibrium with a third body, they are also in thermal equilibrium with each other. This statement is called
All perfect gases change in volume by 1/273th of its original volume at 0°C for every 1°C change in temperature, when the pressure remains constant. This statement is called
All perfect gases change in volume by 1/273th of its original volume at 0°C for every 1°C change in temperature, when the pressure remains constant. This statement is called
Addition of heat at constant pressure to a gas results in
Addition of heat at constant pressure to a gas results in
The efficiency of the dual combustion cycle for the same compression ratio is __________ Diesel cycle.
The efficiency of the dual combustion cycle for the same compression ratio is __________ Diesel cycle.
The atomic mass of nitrogen is __________ oxygen.
The atomic mass of nitrogen is __________ oxygen.
According to Gay Lussac’s law for a perfect gas, the absolute pressure of given mass varies directly as
According to Gay Lussac’s law for a perfect gas, the absolute pressure of given mass varies directly as
The throttling process is __________ process.
The throttling process is __________ process.
The measurement of a thermodynamic property known as temperature is based on
The measurement of a thermodynamic property known as temperature is based on
The basis for measuring thermodynamic property of temperature is given by
The basis for measuring thermodynamic property of temperature is given by
The sum of internal energy (U) and the product of pressure and volume (p.v) is known as
The sum of internal energy (U) and the product of pressure and volume (p.v) is known as
For a thermodynamic process to be reversible, the temperature difference between hot body and working substance should be
For a thermodynamic process to be reversible, the temperature difference between hot body and working substance should be
Which of the following statement is wrong?
Which of the following statement is wrong?
