Q.1
Select the wrong statement
Q.2
The heat flows from a cold body to a hot body with the aid of an external source. This statement is given by
Q.3
The change of entropy, when heat is absorbed by the gas, is
Q.4
When gas is heated at constant pressure, the heat supplied is utilized in
Q.5
Energy can neither be created nor destroyed, but it can be transformed from one form to another. This statement is known as
Q.6
The heat energy stored in the gas and used for raising the temperature of the gas is known as
Q.7
According to kinetic theory of gases, the velocity of molecules __________ with the increase in temperature.
Q.8
In an isothermal process, the internal energy
Q.9
Calorie is a measure of
Q.10
Kerosene is distilled at
Q.11
One Joule (J) is equal to
Q.12
Reversed joule cycle is called
Q.13
Reversed Joule cycle is known as
Q.14
The entropy __________ in an irreversible cyclic process.
Q.15
The pressure of a gas in terms of its mean kinetic energy per unit volume 'E' is equal to
Q.16
The same volume of all gases would represent their
Q.17
If both Stirling and Carnot cycles operate within the same temperature limits, then efficiency of Stirling cycle as compared to Carnot cycle
Q.18
The efficiency of Diesel cycle with decrease in cut-off
Q.19
Otto cycle consists of
Q.20
Properties of substances like pressure, temperature and density, in thermodynamic coordinates are
Q.21
Which of the following processes are thermodynamically reversible?
Q.22
The efficiency of Diesel cycle approaches to Otto cycle efficiency when
Q.23
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.
Q.24
The natural petroleum may be separated into
Q.25
One kg of carbon requires 4/3 kg of oxygen and produces ________ kg of carbon monoxide gas.
Q.26
The compression ratio for Diesel engines is
Q.27
The efficiency of the Carnot cycle is (where T1 and T2 = Highest and lowest temperature during the cycle)
Q.28
Stirling cycle consists of
Q.29
Carnot cycle consists of
Q.30
When cut-off ratio is __________ the efficiency of Diesel cycle approaches to Otto cycle efficiency.
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