A. Same volume
B. More volume
C. Less volume
D. None of these
Ans-: B
Q.2 Superheated vapour behaves like ___.
A. As steam
B. Exactly as gas
C. Water
D. Approximately as a gas
Ans-: D
Q.3 Which law states that , the specific heat of a gas remain constant at all temperature and pressure?
A. Regnault's law
B. Boyle's law
C. Joules law
D. Avogadro's law
Ans-: A
Q.4 Thermocouple based on the ____.
A. Temperature of two bodies
B. Atmospheric pressure
C. See - back effect
D. Atmospheric temperature
Ans-: C
Q.5 Air contains following parts of the oxygen. ( on the weight basis )
A. 24
B. 23
C. 30
D. 73
Ans-: B
Q.6 In thermodynamics cordinates properties of substance like , pressure, temperature and density are ______.
A. Real function
B. Point function
C. Cyclic function
D. Thermodynamics function
Ans-: B
Q.7 which of the following is not a path function?
A. Heat
B. Work
C. Kinatic energy
D. Thermal conductivity
Ans-: D
Q.8 In a cycle heat us rejected at____.
A. Constant pressure
B. Constant temperature
C. Constant volume
D. All of the above
Ans-: A
Q.9 Flow of steam through a nozzle is ___.
A. Constant flow
B. Adiabatic flow
C. Isothermal flow
D. Constant pressure flow
Ans-: B
Q.10 The ratio of number of moles of a gas to total number of moles is known as _____.
A. Ideal gas
B. Mole fraction
C. Enthalpy
D. Molecular ratio
Ans-: B
Q.11 Real gas follows, PV = nRT ?
A. Yes
B. No
C. At constant temperature
D. At constant pressure
Ans-: No
Q.12 The region where vapour and liquid exest in equilibrium is called ___.
A. Hot region
B. Wet region
C. Cold region
D. None of these
Ans-: B
Q.13 Solid "Co2" is also known as _____.
A. Dry solid
B. Dry ice
C. Dry Co2
D. Dry gas
Ans-: B
Q.14 The triple point is a point , where ___.
A. Two phases co - exist
B. Three phases co - exist
C. No phase co - exist
D. None of these
Ans -: B
Q.15 Triple point of water is ____.
A. 4.58 mm(p) of Hg
B. 0
C. 45.8 mm (p) of Hg
D. 1
Ans -: A
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