Menu
Home / Chemical Engineering / Petroleum Refinery Engineering :: Section 7

Chemical Engineering :: Petroleum Refinery Engineering

Petroleum Refinery Engineering - Section 1
Petroleum Refinery Engineering - Section 2
Petroleum Refinery Engineering - Section 3
Petroleum Refinery Engineering - Section 4
Petroleum Refinery Engineering - Section 5
Petroleum Refinery Engineering - Section 6
Petroleum Refinery Engineering - Section 7

  1. Hydrogen percentage (by weight) in crude petroleum may be about

    2. A.
    5
    B.
    15
    C.
    25
    D.
    35

    View Answer

    Workspace

    Discuss Discuss in Forum

  2. Which of the following is an additive used for improving the cetane number of diesel ?

    3. A.
    Tetraethyl lead
    B.
    Tetramethyllead
    C.
    Ethyl nitrate or acetone
    D.
    None of these

    View Answer

    Workspace

    Discuss Discuss in Forum

  3. Tetra-ethyl lead is added in gasoline to

    4. A.
    increase its smoke point.
    B.
    reduce gum formation.
    C.
    reduce the pour point.
    D.
    increase its octane number.

    View Answer

    Workspace

    Discuss Discuss in Forum

  4. Aromatics are desired constituents of

    5. A.
    lubricating oil
    B.
    diesel
    C.
    kerosene
    D.
    petrol

    View Answer

    Workspace

    Discuss Discuss in Forum

  5. Crude topping column operates at __________ pressure.

    6. A.
    atmospheric
    B.
    10 atm
    C.
    vacuum
    D.
    3 atm.

    View Answer

    Workspace

    Discuss Discuss in Forum

  6. Octane number (unleaded) of gasoline produced by isomerisation of butane may be about

    7. A.
    45
    B.
    55
    C.
    70
    D.
    90

    View Answer

    Workspace

    Discuss Discuss in Forum

  7. In a refinery petroleum crude is fractionated into gas fraction, light ends, intermediate distillates, heavy distillates, residues and by products. The group of products including gas oil, diesel oil and heavy fuel oil belongs to the fraction

    8. A.
    heavy distillates
    B.
    intermediate distillates
    C.
    light ends
    D.
    residues

    View Answer

    Workspace

    Discuss Discuss in Forum

  8. Feedstock for polymerisation is

    9. A.
    naphtha.
    B.
    cracked gases rich in C2 & C4 olefins.
    C.
    low boiling aromatics.
    D.
    none of these.

    View Answer

    Workspace

    Discuss Discuss in Forum

  9. Pick out the correct statement pertaining to catalytic cracking.

    10. A.
    With increase in the reactor pressure, octane number of gasoline decreases.
    B.
    With increase in the reactor temperature, gasoline yield decreases for a given conversion.
    C.
    Percentage conversion increases with increase in the catalyst to oil ratio.
    D.
    all (a), (b) and (c).

    View Answer

    Workspace

    Discuss Discuss in Forum

  10. Which of the following is a naphthene ?

    11. A.
    Butene
    B.
    Butadiene
    C.
    Cyclohexane
    D.
    Acetylene

    View Answer

    Workspace

    Discuss Discuss in Forum

Java Programming Questions and Answers Interview Questions and Answers