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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

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

  4. A.

     Damping

    B.

     Resilience

    C.

     Creep resistaned

    D.

     DBTT

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  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

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

  8. A.

     Nichrome

    B.

     Kanthal

    C.

     Invar

    D.

     None of these

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

  10. A.

     Killed

    B.

     Rimming

    C.

     High alloy

    D.

     None of these

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  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

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

  14. A.

     Thinner

    B.

     Dryer

    C.

     Drying oil

    D.

     None of these

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  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

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  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

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  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

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