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.Management Sciences
A. 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe
B. 92.5% aluminium and, 4% copper, 2% nickel and 1.5% Mg
C. 90% aluminium and 90% copper
D. 90% magnesium and 9% aluminium with some copper
E. 90% magnesium and 10% tin
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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