question_answer

Air from a reservoir is to be passed through a supersonic nozzle so that the jet will have a Mach Number of 2. If the static temperature of the jet is not to be less than \[27{}^\circ C,\] the minimum temperature of air in the reservoir should be:

A) \[48.6{}^\circ C\]                     

B) \[167{}^\circ C\]

C) \[267{}^\circ C\]                      

D) \[367{}^\circ C\]