A process, in which the working substance neither receives nor gives out heat to its surroundings during its expansion or compression, is called

A. Isothermal process

B. Hyperbolic process

C. Adiabatic process

D. Polytropic process

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  1. The stress developed in a material at breaking point in extension is called
  2. For the constant pressure and heat input, the air standard efficiency of gas power cycle is in the order
  3. A shaft revolving at ω rad/s transmits torque (T) in Nm. The power developed is
  4. The measurement of a thermodynamic property known as temperature is based on
  5. The compression ratio is the ratio of
  6. Select the wrong statement
  7. The process is adiabatic, if the value of n in the equation pvn = C, is
  8. The principal constituents of a fuel are
  9. The capacity of a strained body for doing work on the removal of the straining force, is called
  10. The pressure exerted by an ideal gas is ________ of the kinetic energy of all the molecules contained…
  11. The maximum bending moment for the beam shown in the below figure, is
  12. Which of the following has the highest calorific value?
  13. The fuel mostly used in cement industry and in metallurgical processes is
  14. The calorific value of gaseous fuel is expressed in
  15. The hyperbolic process is governed by
  16. A concentrated load is one which
  17. During a tensile test on a specimen of 1 cm cross-section, maximum load observed was 8 tonnes and area…
  18. The strain energy stored in a solid circular shaft subjected to shear stress (τ), is: (Where G…
  19. One molecule of oxygen is __________ times heavier than the hydrogen atom.
  20. Which of the following is correct?
  21. Carnot cycle has maximum efficiency for
  22. Which of the following cycles has maximum efficiency?
  23. The absolute zero temperature is taken as
  24. The point of contraflexure is a point where
  25. For riveting, the size of hole drilled in plates is __________ shank diameter of rivet.
  26. The layer at the centre of gravity of the beam as shown in the below figure, will be
  27. The torsional rigidity of a shaft is expressed by the
  28. The condition for the reversibility of a cycle is
  29. The oxygen atom is ________ times heavier than the hydrogen atom.
  30. The ultimate tensile stress of mild steel compared to ultimate compressive stress is