Chapter 6 STEAM AND GAS TURBINES MCQs 20 min Score: 0 Attempted: 0/20 Subscribe 1. The turbine blades are (A) Curved (B) Straight (C) Circular (D) RectangularShow All Answers 2. A closed cycle gas turbine consists of (A) All of these (B) Heating chamber (C) Cooling chamber (D) CompressorShow All Answers 3. In steam turbine working substance is used (A) Petrol (B) Water (C) Steam (D) GasShow All Answers 4. In reaction turbine the steam slides over the moving blades with (A) Kinetic energy (B) Pressure and kinetic energy (C) Pressure (D) Potential energyShow All Answers 5. The compressed air used in turbine (A) Steam turbine (B) Impulse turbine (C) Gas turbine (D) Reaction turbineShow All Answers 6. The action of steam in steam turbine is (A) Static (B) Dynamic (C) Static and dynamic (D) Neither static nor dynamicShow All Answers 7. Two main types of steam turbines are (A) None of these (B) Open cycle and closed cycle turbines (C) Gas and steam turbines (D) Impulse and reaction turbinesShow All Answers 8. In the impulse turbine steam expands in the (A) Runner (B) Nozzle (C) Blades (D) CasingShow All Answers 9. It is not a part of impulse turbine: (A) Runner and blade (B) Nozzle (C) Draft tube (D) CasingShow All Answers 10. It is not a part of reaction turbine: (A) Draft tube (B) Nozzle (C) Guide mechanism (D) CasingShow All Answers 11. De-level turbine is (A) Neither a nor b (B) Reaction turbine (C) Both a and b (D) Impulse turbineShow All Answers 12. Parson’s turbine is (A) Reaction turbine (B) Impulse turbine (C) Both a and b (D) Neither a nor bShow All Answers 13. ------------------- is used to drive air compressor in turbojet engines (A) Steam turbine (B) Impulse turbine (C) Reaction turbine (D) Gas turbineShow All Answers 14. A gas turbine plant works on the basis of ------------------ cycle. (A) Rankine (B) Diesel (C) Otto (D) Joule’sShow All Answers 15. Gas turbine is used in ----------------------? (A) Aircraft (B) Power plant (C) Tanks (D) ShipsShow All Answers 16. A closed cycle turbine is a -------------------------- turbine. (A) Steam turbine (B) Impulse turbine (C) Reaction turbine (D) Gas turbineShow All Answers 17. A steam turbine works on the ------------------ cycle. (A) Joule’s (B) Diesel (C) Rankine (D) OttoShow All Answers 18. In gas turbines ------------- is used as working substance. (A) CO₂ (B) Hydrogen gas (C) Air (D) Nitrogen gasShow All Answers 19. Steam jet/nozzle is used in --------------- turbine. (A) All of these (B) Reaction (C) Gas (D) ImpulseShow All Answers 20. A ------------------ converts pressure energy of steam into kinetic energy in steam turbines. (A) Runner (B) Casing (C) Blades (D) NozzleShow All Answers