Nozzles with high pressure ratios have ______ area divergent sections.
A. variable
B. constant
C. maximum
D. none of the mentioned
Answer:A
Nozzles with high pressure ratios have ______ area divergent sections.
A. variable B. constant C. maximum D. none of the mentioned
Explanation: When nozzles are operated at high pressure ratios it needs variable divergent sections because each pressure ratio requires a special divergent section.