The oxygen atom is ________ times heavier than the hydrogen atom.

A. 2

B. 8

C. 16

D. 32

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  1. The state of a substance whose evaporation from its liquid state is complete, is known as
  2. The heat absorbed or rejected by the working substance is given by (where ds = Increase or decrease…
  3. The ratio of direct stress to volumetric strain in case of a body subjected to three mutually perpendicular…
  4. A cycle consisting of two isothermal and two isentropic processes, is known as
  5. Kelvin-Planck's law deals with
  6. The efficiency of a Carnot engine depends on
  7. One kg of ethylene (C2H4) requires 2 kg of oxygen and produces 22/7 kg of carbon dioxide and __________…
  8. Two shafts 'A' and 'B' transmit the same power. The speed of shaft 'A' is 250 r.p.m. and that of shaft…
  9. A circular shaft fixed at, A has diameter D for half of its length and diameter D/2 over the other half,…
  10. The percentage reduction in area of a cast iron specimen during tensile test would be of the order of
  11. According to Euler's column theory, the crippling load for a column of length (l) with one end fixed…
  12. The stress developed in a material at breaking point in extension is called
  13. A path 1-2-3 is given. A system absorbs 100 kJ as heat and does 60 kJ of work while along the path 1-4-3,…
  14. The value of 1 mm of Hg is equal to
  15. Euler's formula holds good only for
  16. The stress at which extension of the material takes place more quickly as compared to the increase in…
  17. A beam is loaded as cantilever. If the load at the end is increased, the failure will occur
  18. The calorific value of gaseous fuel is expressed in
  19. The state of stress at a point in a loaded member is shown in the below figure. The magnitude of maximum…
  20. The specific heat of water is
  21. All perfect gases change in volume by 1/273th of its original volume at 0°C for every 1°C change…
  22. In an ideal gas turbine plant, it is assumed that the compression and expansion processes are
  23. A definite area or a space where some thermodynamic process takes place is known as
  24. For the same maximum pressure and temperature,
  25. When it is indicated that a member is elastic, it means that when force is applied, it will
  26. An adiabatic process is one in which
  27. The deformation per unit length is called
  28. In a prismatic member made of two materials so joined that they deform equally under axial stress, the…
  29. The heating of gas at constant volume is governed by
  30. One molecule of oxygen consists of __________ atoms of oxygen.