In a turbine, the fluid expands almost________?

Which one can be directly solidified from gaseous state without entering into liquid state?

Photoelectric pyrometers are suitable in the temperature range of ________ °C?

Maximum permissible turbidity in potable water is ________ ppm?

Presence of nitrogen in combustion air does not reduce the ________?

The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is________?