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  • Question

  • Which of the following material is seldom used for pressure vessel construction?


  • Options
  • A. Rimmed still
  • B. Mild steel
  • C. Killed steel
  • D. Semi-killed steel

  • Correct Answer
  • Rimmed still 

    • More questions

    • 1. Water is entering a storage tank at a temperature T0 and flow rate Q0 and leaving at a flow rate Q and temperature T. There are negligible heat losses in the tank. The area of cross-section of the tank is A0. The model that describes the dynamic variation of temperature of water in the tank with time is given as :

    • Options
    • A. Q0(T0 - T) = Ac .
    • B. Q0T0 - QT = Ac .
    • C. Q(T0 - T) = Ac .
    • D. Q(T0 - T) = Ac .
      • Discuss
    • 2. An electric furnace producing heat by means of an electric arc struck between each of three electrodes and the charge is called __________ furnace.

    • Options
    • A. resistance
    • B. arc
    • C. low frequency induction
    • D. none of these
      • Discuss
    • 3. Pick out the wrong statement.

    • Options
    • A. Aromatics have higher specific gravity than paraffins,
    • B. Gross calorific value (GCV) of petrofuels is equal to (12400 - 2100 ?2) where, ? is the specific gravity of the fuel at 15.5°C.
    • C. Heavier petrofuels have higher GCV on weight basis (i.e., Kcal/kg) but lower GCV on volume basis (i.e., Kcal/litre).
    • D. Higher specific gravity of petrofuels means higher C/H ratio.
      • Discuss
    • 4. __________ base crude oil is also called asphaltic crude.

    • Options
    • A. Paraffinic
    • B. Naphthenic
    • C. Mixed
    • D. Aromatic
      • Discuss
    • 5. Which of the following terms of Vander Walls equation of state for a non-ideal gas accounts for intermolecular forces?

    • Options
    • A. RT
    • B.
    • C. (V - b)
    • D. 1/RT
      • Discuss
    • 6. Which of the following is the Claussius-Clayperon equation?

    • Options
    • A. PV = RT + B/V + y/V2 + ....
    • B. (P + a/V2)(V-b) = RT
    • C.
    • D.
      • Discuss
    • 7. Vapor pressure of a solution is proportional to(where, Sv and St are mole fraction of solvent and solute respectively).

    • Options
    • A. Sv
    • B. 1/St
    • C. St
    • D. 1/Sv
      • Discuss
    • 8. Hot wire anemometer is used for the measurement of

    • Options
    • A. flow rates of fluids.
    • B. flow rates of granular solids.
    • C. very high temperature.
    • D. thermal conductivity of gases.
      • Discuss
    • 9. Commercial fertilisers are available mostly in the form of

    • Options
    • A. powder
    • B. grannules
    • C. lumps
    • D. flakes
      • Discuss
    • 10. Which of the following is followed by an ideal solution?

    • Options
    • A. Boyle's law
    • B. Amgat's law
    • C. Raoult's law
    • D. Trouton's rule
      • Discuss

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