The heat and mechanical energies are mutually convertible. This statement was established by

A. Boyle

B. Charles

C. Joule

D. None of these

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  1. The sum of internal energy (U) and the product of pressure and volume (p.v) is known as
  2. Which of the following is an irreversible cycle?
  3. When the gas is heated at constant volume, the heat supplied
  4. The total strain energy stored in a body is termed a
  5. The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is always…
  6. If percentage reduction in area of a certain specimen made of material 'A' under tensile test is 60%…
  7. The efficiency and work ratio of a simple gas turbine cycle are
  8. One kg of hydrogen requires 8 kg of oxygen and produces
  9. The point of contraflexure is a point where
  10. The specific heat at constant volume is
  11. The layer at the centre of gravity of the beam as shown in the below figure, will be
  12. The absolute zero temperature is taken as
  13. Which of the following is correct?
  14. An isothermal process is governed by
  15. The energy absorbed in a body, when it is strained within the elastic limits, is known as
  16. The bending moment at a point on a beam is the algebraic ________ of all the moments on either side…
  17. The compression ratio for Diesel engines is
  18. Euler's formula holds good only for
  19. After reaching the yielding stage while testing a mild steel specimen, strain
  20. The value of Poisson's ratio for steel is between
  21. A riveted joint in which the number otrivets decrease from innermost to outer most rows is called
  22. Shear modulus is the ratio of
  23. The heat supplied to the gas at constant volume is (where m = Mass of gas, cv = Specific heat at constant…
  24. In open cycle gas turbine plants
  25. Which of the following has the minimum atomic mass?
  26. If a material expands freely due to heating it will develop
  27. When a closely-coiled helical spring of mean diameter (D) is subjected to an axial load (W), the deflection…
  28. In a steady flow process, the ratio of
  29. For the same compression ratio, the efficiency of Diesel cycle is __________ Otto cycle.
  30. The value of modulus of elasticity for mild steel is of the order of