Q.1
A mixture of gas expands from 0.03 m3 to 0.06 m3 at a constant pressure of 1 MPa and absorbs 84 kJ of heat during the process. The change in internal energy of the mixture is
Q.2
Zeroth law of thermodynamics
Q.3
Second law of thermodynamics defines
Q.4
Which of the following variables controls the physical properties of a perfect gas?
Q.5
The value of one bar (in S. I. units) is equal to
Q.6
The property of a working substance which increases or decreases as the heat is supplied or removed in a reversible manner, is known as
Q.7
Which of the following laws is applicable for the behaviour of a perfect gas?
Q.8
Which of the following is a reversible non-flow process?
Q.9
The thermodynamic difference between a Rankine cycle working with saturated steam and the Carnot cycle is that
Q.10
A process, in which the gas is heated or expanded in such a way that the product of its pressure and volume remains constant, is called
Q.11
Diesel cycle consists of following four processes
Q.12
Brayton cycle consists' of following four processes
Q.13
The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is
Q.14
The principal constituents of a fuel are
Q.15
The compression ratio is the ratio of
Q.16
When coal is first dried and then crushed to a fine powder by pulverizing machine, the resulting fuel is called
Q.17
For reversible adiabatic process, change in entropy is
Q.18
If a system after undergoing a series of processes, returns to the initial state then
Q.19
The gas constant (R) is equal to the __________ of two specific heats.
Q.20
When the expansion or compression takes place according to the law pvn = C, the process is known as
Q.21
The term N.T.P. stands for
Q.22
First law of thermodynamics deals with
Q.23
The value of n = 1 in the polytropic process indicates it to be
Q.24
The general gas energy equation is (where Q1 - 2 = Heat supplied, dU = Change in internal energy, and W1 - 2 = Work done in heat units)
Q.25
Otto cycle consists of following four processes
Q.26
A perpetual motion machine is
Q.27
Which of the following can be regarded as gas so that gas laws could be applicable, within the commonly encountered temperature limits?
Q.28
In order that a cycle be reversible, following must be satisfied
Q.29
The standard value of atmospheric pressure taken at sea level is
Q.30
Which law states that the internal energy of a gas is a function of temperature?
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