Pick up the wrong statement?

Engineering Materials 15/04/2021

A. aluminium in steel results in excessive grain growth
B. manganese in steel induces hardness
C. nickel and chromium in steel help in raising the elastic limit and improve the resilience and ductility
D. tungsten in steels improves magnetic properties and hardenability
E. sulphur, phosphorous and lead im¬prove machining properties of steel

Related Mcqs:

    A reversible change in the atomic structure of steel with corresponding change in the properties is known as___________________?
    A. molecular change B. physical change C. allotropic change D. solidus change E. atomic change...
    Hardness of steel depends on_________________?
    A. amount of carbon it contains B. the shape and distribution of the car-bides in iron C. method of fabrication D. contents of alloying elements E. the quality of ore from which it is made...
    The loss of strength in compression with simultaneous gain in strength in tension due to overloading is known as________________?
    A. hysteresis B. creep C. visco elasticity D. Boeschinger effect E. inelasticity...
    The machinability of steel is increased by___________________?
    A. silicon and sulphur B. phosphorous, lead and sulphur C. sulphur, graphite and aluminium D. phosphorous and aluminium E. none of the above...
    Neutral solution is one which has pH value__________________?
    A. greater than 7 B. less than 7 C. equal to 7 D. pH value has nothing to do with neutral solution E. none of the above...

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