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Chemical Engineering :: Chemical Engineering Basics-2

  1. Copper is not present as an alloying constituent in

  2. A.

     Silicon bronze

    B.

     Constantan

    C.

     Nichrome

    D.

     Delta metal

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  3. Kinematic viscosity of water as compared to that of air is

  4. A.

     More

    B.

     Same

    C.

     15% more

    D.

     15% less

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  5. Area under the stress-strain curve upto the __________ is referred to as the modulus of resilience.

  6. A.

     Yield strength

    B.

     Elastic limit

    C.

     Proportional limit

    D.

     Maximum point

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  7. __________ test can be termed as the semi-distructive test.

  8. A.

     Impact

    B.

     Torsion

    C.

     Hardness

    D.

     Charpy

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  9. A 2 kg object weighs 1.8 kgf on a spring balance. The value of 'g' at that location in m/seC₂ is

  10. A.

     8.82

    B.

     9.81

    C.

     10.88

    D.

     0.95

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  11. The weight of a body at the centre of the earth is

  12. A.

     Infinite

    B.

     Zero

    C.

     Same as on the surface of the earth

    D.

     None of these

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  13. The efficiency of a Carnot heat engine operating between absolute temperatures T₁ and T₂ (when, T₁ > T₂) is given by (T₁ - T₂)/T₁. The co-efficient of performance (CO.P.) of a Carnot heat pump operating between T₁ and T₂ is given by

  14. A.

     T₁/(T₁-T₂)

    B.

     T₂/(T₁-T₂)

    C.

     T₁/T₂

    D.

     T₂/T₁

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  15. Lead is poured into the joint between two __________ pipes.

  16. A.

     Mild steel

    B.

     Concrete

    C.

     Cast iron

    D.

     Asbestos cement

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  17. Lead is poured into the joints between two __________ pipes.

  18. A.

     Cast iron

    B.

     Steel

    C.

     Concrete

    D.

     Plastic

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  19. Free oxygen is removed from boiler feed water, because it

  20. A.

     Reduces heat transfer co-efficient

    B.

     Is corrosive

    C.

     Causes explosion

    D.

     None of these

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