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Home Mechanical Engineering Thermodynamics See What Others Are Saying!
  • Question
  • The dual combustion cycle consists of one constant pressure, two constant volume and two isentropic processes.


  • Options
  • A. Agree
  • B. Disagree

  • Correct Answer
  • Agree 


  • More questions

    • 1. The abrasive recommended for grinding materials of high tensile strength is

    • Options
    • A. silicon carbide
    • B. aluminium oxide
    • C. sand stone
    • D. diamond
    • Discuss
    • 2. The unit of Young's modulus is same as that of stress.

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. Glazing in grinding wheels can be decreased by

    • Options
    • A. using a harder wheel or by increasing the wheel speed
    • B. using a softer wheel or by decreasing the wheel speed
    • C. using a harder wheel or by decreasing the wheel speed
    • D. using a softer wheel or by increasing the wheel speed
    • Discuss
    • 4. Threading is an operation of

    • Options
    • A. smoothing and squaring the surface around a hole
    • B. sizing and finishing a small diameter hole
    • C. producing a hole by removing metal along the circumference of a hollow cutting tool
    • D. cutting helical grooves on the external cylindrical surface
    • Discuss
    • 5. Admirality gun metal contains

    • Options
    • A. 60% copper, 35% zinc and 5% manganese
    • B. 76% copper, 20% silicon and 4% zinc
    • C. 82% copper, 12% zinc and 6% manganese
    • D. 88% copper, 10% tin and 2% zinc
    • Discuss
    • 6. A thin cylindrical shell of diameter (d), length (l) and thickness (t)is subjected to an internal pressure (p). The hoop stress in the shell is

    • Options
    • A. pd/t
    • B. pd/2t
    • C. pd/4t
    • D. pd/6t
    • Discuss
    • 7. A body is subjected to a tensile stress of 1200 MPa on one plane and another tensile stress of 600 MPa on a plane at right angles to the former. It is also subjected to a shear stress of 400 MPa on the same planes. The maximum shear stress will be

    • Options
    • A. 400 MPa
    • B. 500 MPa
    • C. 900 MPa
    • D. 1400 MPa
    • Discuss
    • 8. The path taken by intake air is

    • Options
    • A. carburettor (or throttle body) - air cleaner - intake manifold - intake ports - cylinders
    • B. air cleaner - carburettor (or throttle body) -intake ports - intake manifold - cylinders
    • C. air cleaner - intake manifold - carburettor (or throttle body) - intake ports - cylinders
    • D. air cleaner - carburettor (or throttle body) - intake manifold - intake ports - cylinders
    • Discuss
    • 9. The angular velocity (in rad / s) of a body rotating at N revolutions per minute is

    • Options
    • A. ?N/60
    • B. ?N/180
    • C. 2?N/60
    • D. 2?N/180
    • Discuss
    • 10. Cut-off governing as compared to throttle governing is

    • Options
    • A. less efficient and less economical
    • B. less efficient and more economical
    • C. more efficient and less economical
    • D. more efficient and more economical
    • Discuss


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