For continuous operation in elevated temperature ______________ cooled materials are used for blades.
A. ceramic
B. Ceramic and liquid
C. Liquid
D. none of the mentioned
Answer:A
For continuous operation in elevated temperature ______________ cooled materials are used for blades.
A. ceramic B. Ceramic and liquid C. Liquid D. none of the mentioned
Explanation: For continuous operation in elevated temperatures ceramic and liquid cooled materials are used for turbine blades.