In a reaction turbine, the pressure head of water, while flowing over the vanes, is converted into kinetic head before leaving the wheel.

Question: In aqua-ammonia absorption refrigeration system, incomplete rectification leads to accumulation of water in
[A].

condenser

[B].

evaporator

[C].

absorber

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: A one tonne refrigerating machine means that
[A].

one tonne is the total mass of machine

[B].

one tonne refrigerant is used

[C].

one tonne of water can be converted into ice

[D].

one tonne of ice when melts from and at 0° C in 24 hours, the refrigeration effect is equivalent to 210 kJ/min

Answer: Option D

Explanation:

No answer description available for this question.

Question: In free convection heat transfer transition from laminar to turbulent flow is governed by the critical value of the
[A].

Reynold’s number

[B].

Grashoff’s number

[C].

Reynold’s number, Grashoff’s number

[D].

Prandtl number, Grashoff’s number

Answer: Option D

Explanation:

No answer description available for this question.