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Home Mechanical Engineering Steam Boilers and Engines See What Others Are Saying!
  • Question
  • Willian's line follows the law (where b = A constant representing the shape of the Willian's line, a = Another constant i.e. no load consumption per hour, I.P. = Indicated power, and m = Steam consumption per hour)


  • Options
  • A. I.P. = a x m + b
  • B. m = a + b x I.P.
  • C. I.P. = b x m + a
  • D. m = b/I.P. - a

  • Correct Answer
  • m = a + b x I.P


  • More questions

    • 1. The ratio of the isothermal power to the shaft power or brake power of the motor or engine required to drive the compressor is called overall isothermal efficiency.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. If V1 is the jet velocity and V0 is the vehicle velocity, then propulsive efficiency of a turbo-jet engine is

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 3. The tool life is said to be over if

    • Options
    • A. poor surface finish is obtained
    • B. there is sudden increase in cutting forces and power consumption
    • C. overheating and fuming due to heat of friction starts
    • D. all of the above
    • Discuss
    • 4. The equivalent length, of a given column with given end conditions, is the length of an equivalent column of the same material and cross-section with hinged ends, and having the value of crippling load equal to that of the given column.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. In a cold chamber die casting machine

    • Options
    • A. melting pot is separate from the machine
    • B. melting pot is an integral part of the machine
    • C. melting pot may have any location
    • D. low temperature and pressure is used
    • Discuss
    • 6. Buffing wheels are made of

    • Options
    • A. softer metals
    • B. cotton fabric
    • C. carbon
    • D. graphite
    • Discuss
    • 7. At 100% relative humidity, wet bulb temperature, dry bulb temperature, dew point temperature and saturation temperature are equal.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss
    • 8. The wet bulb temperature at 100% relative humidity is __________ dry bulb temperature.

    • Options
    • A. same as
    • B. lower than
    • C. higher than
    • Discuss
    • 9. The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where IG = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, and x = Depth of centre of gravity of the immersed surface from the liquid surface)

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 10. The pressure less than atmospheric pressure is known as

    • Options
    • A. suction pressure
    • B. vacuum pressure
    • C. negative gauge pressure
    • D. all of these
    • Discuss


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