The thermodynamic law, PVy = constant, is not followed by the ________?

Steady uniform flow is represented by flow through a/an ________?

Pick out the correct statement?

Nickel (56%) and molybdenum (17%) alloys are called________?

________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C?

Performance number of a liquid fuel is related to its ________?