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Engineering Thermodynamics

Engineering Thermodynamics
Steam coal is a

Non-coking bituminous coal
Pulverized coal
Coking bituminous coal
Brown coal

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Engineering Thermodynamics
One barometric pressure or 1 atmospheric pressure is equal to

1 kgf/cm²
1.033 kgf/cm²
1.0197 kgf/cm²
0 kgf/cm²

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Engineering Thermodynamics
For a perfect gas, according to Boyle’s law (where P = Absolute pressure, V = Volume and T = Absolute temperature)

T/P = constant, if v is kept constant
V/T = constant, if p is kept constant
P v = constant, if T is kept constant
P/T = constant, if v is kept constant

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Engineering Thermodynamics
The increase in entropy of a system represents

Degradation of energy
Decrease in pressure
Increase in temperature
Increase in availability of energy

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Engineering Thermodynamics
The value of cp/cv for air is

1.45
2.3
1.4
1

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Engineering Thermodynamics
Which of the following can be regarded as gas so that gas laws could be applicable, within the commonly encountered temperature limits?

SO₂, NH₃, CO₂, moisture
O₂, N₂, H₂, air
O₂, N₂, steam, CO₂
O₂, N₂, water vapour

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