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Chemical Engineering :: Chemical Engineering Basics

  1. Production of a hollow product by inflation of a tube or parison is called the __________ process.

  2. A.
    blow moulding
    B.
    calendering
    C.
    extrusion
    D.
    injection

  3. A spark ignition petrol engine has

  4. A.
    throttle valve
    B.
    carburettor
    C.
    both (a) & (b)
    D.
    neither (a) nor (b)

  5. Out of the following, the highest emf for a given temperature is generated by the __________ thermocouple.

  6. A.
    chromel - alumel
    B.
    iron - constantan
    C.
    platinum - platinum + rhodium
    D.
    copper-constantan

  7. Which is the only metal that exists in liquid state at room temperature?

  8. A.
    Sodium
    B.
    Mercury
    C.
    Lithium
    D.
    Strontium

  9. An approximately __________ process exemplifies the flow of a gas through a very long pipe of uniform cross-section.

  10. A.
    adiabatic
    B.
    isothermal
    C.
    isentropic
    D.
    isochoric

  11. A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is

  12. A.
    -0.8
    B.
    0.8
    C.
    +0.08
    D.
    -0.24

  13. The quantity of electricity required to deposit one gm equivalent of any substance is one

  14. A.
    ampere
    B.
    coulomb
    C.
    microfaraday
    D.
    faraday

  15. Surface tension is due to the __________ forces.

  16. A.
    viscous
    B.
    adhesive
    C.
    cohesive
    D.
    difference between adhesive & cohesive

  17. At absolute zero temperature, for any reaction involving condensed phases

  18. A.
    Δ G° = 0 , Δ H° = 0
    B.
    Δ H° = 0 , Δ S° = 0
    C.
    Δ S° = 0 , Δ E° = 0
    D.
    Δ S° = 0 , Δ Cp° = 0

  19. Metals in general have a low value of thermal

  20. A.
    conductivity
    B.
    diffusivity
    C.
    inertia
    D.
    all (a), (b) & (c)