Unit 4 and 5

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Across
  1. 4. – Sum of internal energy
  2. 7. – Volume occupied by a water in shell
  3. 10. – Scientist who gave the name to diesel cycle
  4. 11. – Device which operates in a cycle maintains a body temperature lower than surrounding
  5. 12. – Essential item to be fitted on the boiler for its safe working
  6. 13. -Process in which energy transfer and its effect transfer on the physical properties of substance
Down
  1. 1. – Supported by the bearing of crankshaft
  2. 2. – Machine in which both petrol and diesel engine have the same mechanism
  3. 3. – Rate of flow of mass and energy across the control surface
  4. 5. – change of state
  5. 6. – Measure of a system’s thermal energy per unit temperature
  6. 8. – Hollow cast iron
  7. 9. – Name the external part of system