logo

CuriousTab

CuriousTab

Discussion

Home ‣ Mechanical Engineering ‣ Steam Nozzles and Turbines Comments
  • Question

  • The Parsons' reaction turbine has


  • Options
  • A. only moving blades
  • B. only fixed blades
  • C. identical fixed and moving blades
  • D. fixed and moving blades of different shape

  • Correct Answer
  • identical fixed and moving blades 

    • Steam Nozzles and Turbines problems

    Search Results

    • 1. A binary vapour plant consists of

    • Options
    • A. steam turbine
    • B. steam condenser
    • C. mercury boiler
    • D. all of these
      • Discuss
    • 2. The critical pressure gives the velocity of steam at the throat equal to the velocity of sound.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 3. The maximum efficiency of a reaction turbine is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 4. Multi-stage steam turbines are of the

    • Options
    • A. velocity compounded type
    • B. reaction type
    • C. pressure compounded type
    • D. all of these
      • Discuss
    • 5. The critical pressure ratio for initially wet steam is

    • Options
    • A. 0.546
    • B. 0.577
    • C. 0.582
    • D. 0.601
      • Discuss
    • 6. A turbine is said to have an axial discharge when the steam leaves the blade tip at __________ to the direction of the blade motion.

    • Options
    • A. 60°
    • B. 90°
    • C. 180°
    • D. 270°
      • Discuss
    • 7. The turbine, in which the general direction of the steam flow is parallel to the turbine axis, is called axial flow turbines

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. In a De-Laval nozzle expanding superheated steam from 10 bar to 0.1 bar, the pressure at the minimum cross-section (i. e. pressure at throat, p2) will be

    • Options
    • A. 3.3 bar
    • B. 5.46 bar
    • C. 8.2 bar
    • D. 9.9 bar
      • Discuss
    • 9. The turbine blades do not change the direction of steam issuing from the nozzle.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. The ratio of total useful heat drop to the total isentropic heat drop, is called

    • Options
    • A. stage efficiency
    • B. internal efficiency
    • C. Rankine efficiency
    • D. none of these
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.