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This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Steam And Gas Turbines knowledge and support exam preparation. Choose a topic below to get started.
1. |
Ductility increases with ____________ in temperature. |
A. | Increase |
B. | Decrease |
C. | Ductility doesn t effect with temperature |
D. | None of the mentioned |
Answer» B. Decrease | |
2. |
In atomic scale shear stress varies ___________ |
A. | tangentially & sinusoidally |
B. | tangentially |
C. | sinusoidally |
D. | none of the mentioned |
Answer» D. none of the mentioned | |
3. |
Turbine blades are conventionally casted. |
A. | True |
B. | False |
Answer» B. False | |
4. |
Turbine blades are subjected to stress from ___________ |
A. | centripetal force |
B. | centrifugal force |
C. | centripetal & centrifugal force |
D. | none of the mentioned |
Answer» C. centripetal & centrifugal force | |
5. |
When pulling stress and mechanical stress in same direction _______ |
A. | Turbine efficiency decreases |
B. | Turbine shutdowns |
C. | Turbine slows down |
D. | None of the mentioned |
Answer» E. | |
6. |
Stress in the rotor is influenced by ______ |
A. | Pressure |
B. | Temperature |
C. | Force |
D. | None of the mentioned |
Answer» C. Force | |
7. |
Nagong-Haqi formula is used to calculate ___________ formula. |
A. | heat transfer |
B. | efficiency |
C. | heat transfer & efficiency |
D. | none of the mentioned |
Answer» B. efficiency | |
8. |
Westinghouse formula is used to calculate ____________ formula. |
A. | heat transfer |
B. | efficiency |
C. | heat transfer & efficiency |
D. | none of the mentioned |
Answer» D. none of the mentioned | |
9. |
Crank Nicholson method is an integration method. |
A. | True |
B. | False |
Answer» B. False | |
10. |
Thermal stresses in rotor is ___________ than in cylinder. |
A. | lesser |
B. | greater |
C. | equal |
D. | none |
Answer» C. equal | |