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  • Question

  • A gas engine has a swept volume of 300 cm3 and clearance volume of 25 cm3. Its volumetric efficiency is 0.88 and mechanical efficiency is 0.90. The volume of the mixture taken in per stroke is


  • Options
  • A. 248 cm3
  • B. 252 cm3
  • C. 264 cm3
  • D. 286 cm3

  • Correct Answer
  • 264 cm3 

    • More questions

    • 1. The machinability of aluminium increases when __________ is added to aluminium.

    • Options
    • A. copper
    • B. magnesium
    • C. silicon
    • D. lead and bismuth
      • Discuss
    • 2. In electric resistance welding, pressure applied varies from

    • Options
    • A. 1 to 5 MPa
    • B. 5 to 10 MPa
    • C. 10 to 25 MPa
    • D. 25 to 55 MPa
      • Discuss
    • 3. Line organisation is suitable for a big organisation.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 4. The ratio of the isentropic work to the Euler's work is known as pressure coefficient.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 5. An activity of the project is graphically represented by __________ on the network diagram.

    • Options
    • A. a circle
    • B. a straight line
    • C. an arrow
      • Discuss
    • 6. The size of a lathe is specified by the

    • Options
    • A. length between centres
    • B. swing diameter over the bed
    • C. swing diameter over the carriage
    • D. all of these
      • Discuss
    • 7. In a turbo jet engine, subsequent to heat addition to compressed air, to get the power output, the working substance is expanded in

    • Options
    • A. exit nozzle, which is a constant volume process
    • B. exit nozzle, which is essentially an isentropic process
    • C. turbine blades, which is a constant volume process
    • D. turbine blades, which is essentially an isentropic process
      • Discuss
    • 8. The process of changing the shape of grinding wheel as it becomes worn due to breaking away of the abrasive and bond, is called

    • Options
    • A. truing
    • B. dressing
    • C. facing
    • D. clearing
      • Discuss
    • 9. The maximum shear stress is __________ the algebraic difference of maximum and minimum normal stresses.

    • Options
    • A. equal to
    • B. one-fourth
    • C. one-half
    • D. twice
      • Discuss
    • 10. PERT is applied for

    • Options
    • A. marketing programmes and advertising programmes
    • B. installation of machinery
    • C. research and development of products
    • D. all of these
      • Discuss

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