Home / Chemical Engineering / Chemical Engineering Basics :: Section 2

Chemical Engineering :: Chemical Engineering Basics

  1. Case hardening is not done by

  2. A.
    nitriding
    B.
    hot dipping
    C.
    electroplating
    D.
    both b & c

  3. Satellites burn off during re-entry to earth's atmosphere, because of the

  4. A.
    combustion with air.
    B.
    gravitational pull by earth.
    C.
    friction with earth's atmosphere.
    D.
    loss in weight of the satellite.

  5. With increase in compression ratio, the volumetric efficiency of air compressor

  6. A.
    increases.
    B.
    decreases.
    C.
    remains same.
    D.
    may increase or decrease (depends on the suction pressure).

  7. Neutrons are present in all atoms except that of

  8. A.
    He
    B.
    C
    C.
    H
    D.
    Ar

  9. Biological shield in a nuclear reactor is generally provided to protect against the

  10. A.
    α-rays
    B.
    β-rays
    C.
    gamma rays & neutrons
    D.
    electrons

  11. __________ circuit is most commonly used to measure strain with the help of a strain gauge.

  12. A.
    Ballast
    B.
    Voltage balancing potentiometric
    C.
    Simple current sensitive
    D.
    none of these

  13. Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines ?

  14. A.
    Air filter
    B.
    Fuel injector
    C.
    Exhaust silencer
    D.
    Battery

  15. __________ is a special constituent of chlorophyll without which photosynthesis is not possible.

  16. A.
    Calcium
    B.
    Nitrogen
    C.
    Phosphorous
    D.
    Hydrogen

  17. __________ is used as a material of construction for the blade of power saw.

  18. A.
    Wrought iron
    B.
    Stainless steel
    C.
    Mild steel
    D.
    High speed steel

  19. During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to

  20. A.
    time
    B.
    square root of time
    C.
    square of time
    D.
    cube of time