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Chemical Engineering :: Chemical Engineering Basics-2

  1. The units of the rate constant for a second order reaction are

  2. A.

     Sec⁻¹. mole°

    B.

     Moles¹. sec⁻¹

    C.

     Moles⁻¹. sec¹

    D.

     Moles¹. sec¹


  3. The single most imortant requirement for a turbine blade material is

  4. A.

     Damping

    B.

     Resilience

    C.

     Creep resistaned

    D.

     DBTT


  5. Moist climate is the most favourable factor in the site selection far a

  6. A.

     Steel plant

    B.

     Textile factory

    C.

     Petroleum refinery

    D.

     Coke oven battery


  7. __________ wire is never used for making the heating element.

  8. A.

     Nichrome

    B.

     Kanthal

    C.

     Invar

    D.

     None of these


  9. Basic open hearth furnace (BOF) is not used for producing __________ steel.

  10. A.

     Killed

    B.

     Rimming

    C.

     High alloy

    D.

     None of these


  11. Water flow in the river during flood can be categorised as the __________ flow.

  12. A.

     Unsteady uniform

    B.

     Unsteady non-uniform

    C.

     Steady uniform

    D.

     Steady non-uniform


  13. __________ is a non volatile film forming constituent of a paint.

  14. A.

     Thinner

    B.

     Dryer

    C.

     Drying oil

    D.

     None of these


  15. The forms in which various metals and non metals occur in nature are called minerals. Which of the following is not a metallic ferrous mineral?

  16. A.

     Cassiterite

    B.

     Sphalerite

    C.

     Chalcopyrite

    D.

     Calcite


  17. Which of the following alloying elements when added in steel does not improve its lachinability?

  18. A.

     Sulphur

    B.

     Phosphorous

    C.

     Copper

    D.

     Lead


  19. Sudden immersion/dipping of red hot steel bar in water makes it

  20. A.

     Malleable & tough

    B.

     Ductile & soft

    C.

     Brittle & hard

    D.

     None of these