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  • Question

  • A/an __________ is used for changing the direction of a pipeline.


  • Options
  • A. elbow
  • B. union
  • C. flange
  • D. disc compensator

  • Correct Answer
  • elbow 

    • More questions

    • 1. The vapor pressure of liquids of similar chemical nature at any particular temperature __________ with increase in the molecular weight.

    • Options
    • A. increases
    • B. decreases
    • C. remains unchanged
    • D. either (a) or (b); depends on the liquid
      • Discuss
    • 2. In a shell and tube heat exchanger having triangular pitch, the shell side equivalent diameter is given by

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 3. Reforming

    • Options
    • A. uses naphtha as feedstock.
    • B. does not much affect the molecular weight of the feed.
    • C. improves the quality & yield of gasoline.
    • D. all (a), (b) and (c).
      • Discuss
    • 4. In financial accounting of a chemical plant, which of the following relationship is invalid?

    • Options
    • A. Assets = equities
    • B. Assets = liabilities + net worth
    • C. Total income = costs + profits
    • D. Assets = capital.
      • Discuss
    • 5. Presence of high concentration of ozone and smog in atmospheric air causes the

    • Options
    • A. embrittlement & decrease of folding resistance of paper.
    • B. cracking of rubber products.
    • C. fading of dye on textiles.
    • D. damage of electrical insulator on high tension power line.
      • Discuss
    • 6. Overall mass transfer co-efficient in case of absorption of __________ in water is based on the gas film co-efficient only, as the mass transfer process is gas film (phase) controlling.

    • Options
    • A. CO2
    • B. SO2
    • C. NH3
    • D. none of these
      • Discuss
    • 7. A head comprises of straight flange section, corner torus, section and central dished section. Crown radius and knuckle radius in a head is related respectively to the

    • Options
    • A. central dished section and corner torus section.
    • B. corner torus section and central dished section.
    • C. central dished section and straight flange section.
    • D. straight flange section and corner torus section.
      • Discuss
    • 8. Boyle's law for gases states that

    • Options
    • A. , when temperature is constant.
    • B. , when temperature & mass of the gas remain constant.
    • C. P ? V, at constant temperature & mass of the gas.
    • D. = constant, for any gas.
      • Discuss
    • 9. Thermoplastic resins usually

    • Options
    • A. remain hard as long as they are hot.
    • B. can not be reclaimed from waste.
    • C. permanent setting resins.
    • D. less brittle than thermosetting resins.
      • Discuss
    • 10. H3PO4 is the chemical formula of __________ phosphoric acid.

    • Options
    • A. pyro
    • B. ortho
    • C. meta
    • D. none of these
      • Discuss

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