# Sublimation region is the region where

1.  solid and vapor phases are in equilibrium

2.  solid and liquid phases are in equilibrium

3.  liquid and vapor phases are in equilibrium

4.  solid, liquid and vapor phases are in equilibrium

4

solid and vapor phases are in equilibrium

Explanation :
No Explanation available for this question

# Stoichiometric quantity of air is the

1.  air present in atmosphere at NTP conditions

2.  air required for complete combustion of fuel with no excess air

3.  air required for optimum combustion so as to have reasonable excess air

4.  air required to convert CO into CO2

4

air required for complete combustion of fuel with no excess air

Explanation :
No Explanation available for this question

# One kg of steam sample contains 0.8 kg dry steam, its dryness fraction is

1.  0.2

2.  0.8

3.  1.0

4.  0.6

4

0.8

Explanation :
No Explanation available for this question

# If a steam sample is nearly in dry condition, then its dryness fraction can be most accurately determined by

1.  throttling calorimeter

2.  separating calorimeter

3.  combined separating and throttling calorimeter

4.  bucket calorimeter

4

throttling calorimeter

Explanation :
No Explanation available for this question

# If xx and x2 be the dryess fractions obtained in separating calorimeter and throttling calorimeter respectively, then the actual dryness fraction of steam will be

1.  xxx2

2.  xx + x2

3.  Both

4.  None

4

xxx2

Explanation :
No Explanation available for this question

# The specific heat of super-heated steam in kcal/kg is generally of the order of

1.  0.1

2.  0.3

3.  0.5

4.  0.8

4

0.5

Explanation :
No Explanation available for this question

# On Mollier chart, flow through turbine is represented by

1.  horizontal straight line

2.  vertical straight line

3.  straight inclined line

4.  curved line

4

vertical straight line

Explanation :
No Explanation available for this question

# A wet vapor can be completely specified by

1.  pressure only

2.  temperature only

3.  dryness fraction only

4.  pressure and dryness fraction

4

pressure and dryness fraction

Explanation :
No Explanation available for this question

# On Moillier chart, the constant pressure lines

1.  diverge from left to right

2.  diverge from right to left

3.  are equally spaced throughout

4.  first rise up and then fall

4

diverge from left to right

Explanation :
No Explanation available for this question

# On Mollier chart, free expansion, or throttling process from high pressure to atmosphere is represented by

1.  horizontal straight line

2.  vertical straight line

3.  straight inclined line

4.  curved line

4