22. On Millier chart, the constant pressure lines
A.Diverge from left to right
B.Diverge from right to left
C.Are equally spaced throughout
D.First rise up and then fall

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23. On Mollier chart, free expansion, or throttling process from high pressure to atmosphere is represented by
A.Horizontal straight line
B.Vertical straight line
C.Straight inclined line
D.Curved line

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24. The bituminous coal is non-caking if its carbon content is
A.78-81%
B.81-85%
C.85-90%
D.90-95%

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25. The dry saturated steam at very low pressure, (5-10 kg/cm2) when throttled to atmosphere will become
A.Wet
B.Superheated
C.Remain dry satruated
D.Dry

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26. Water at pressure of 4 kg/cm2 and 160°C temperature when exposed to atmosphere will
A.Boil
B.Flash i.e. get converted into steam
C.Remain as it was
D.Cool down

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27. The dry saturated steam at very high pressure (150-200 kg/cm2) when throttled to atmosphere will become
A.Wet
B.Superheated
C.Remain dry saturated
D.Dry

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28. In a throttling process
A.Steam temperature remaisn constant
B.Steam pressure remains constant steam enthalpy remains constant
C.(f) steam entropy remains constant
D.(g) steam volume remains constant.

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