logo

CuriousTab

CuriousTab

Discussion

Home ‣ Mechanical Engineering ‣ Steam Boilers and Engines Comments
  • Question

  • Expansion ratio is the ratio of


  • Options
  • A. swept volume to the volume at cut-off
  • B. clearance volume to the swept volume
  • C. volume at cut-off to the swept volume
  • D. swept volume to the clearance volume

  • Correct Answer
  • swept volume to the volume at cut-off 

    • Steam Boilers and Engines problems

    Search Results

    • 1. The motion of a D-slide valve in a steam engine is simple harmonic.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 2. The maximum steam pressure in a Locomotive boiler is limited to

    • Options
    • A. 0.18 MN/m2
    • B. 1.8 MN/m2
    • C. 18 MN/m2
    • D. 180 MN/m2
      • Discuss
    • 3. The mechanical draught produces more draught than natural draught.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. In case of condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is __________ the atmospheric pressure.

    • Options
    • A. equal to
    • B. lower than
    • C. higher than
      • Discuss
    • 5. The high pressure and low pressure cylinders in a receiver type compound engine are regarded as having cranks

    • Options
    • A. 180° to each other
    • B. 90° to each other
    • C. 0° to each other
    • D. none of these
      • Discuss
    • 6. Lancashire boiler is used where working pressure and power required are

    • Options
    • A. low
    • B. moderate
    • C. high
    • D. none of these
      • Discuss
    • 7. A device used in a boiler to control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required, is known as

    • Options
    • A. blow off cock
    • B. fusible plug
    • C. superheater
    • D. stop valve
      • Discuss
    • 8. The amount of water evaporated or steam produced in kg per kg of fuel burnt is termed as evaporative capacity of a boiler.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 9. The draught is the __________ of pressures above and below the fire grate.

    • Options
    • A. sum
    • B. difference
      • Discuss
    • 10. In a double acting steam engine, the steam is admitted on one side of the piston and two working strokes are produced during each revolution of the crankshaft.

    • Options
    • A. Yes
    • B. No
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.