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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
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  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,
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  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
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