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
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Related Mcqs:
- Steel contains____________________?
- A. 80% or more iron B. 50% or more iron C. alloying elements like chromium, tungsten nickel and copper D. elements like phosphorus, sulphur and silicon in varying quantities E. high quantities of sulphur...
- The hardness of steel increases if it contains____________________?
- A. austenite B. martensite C. pearlite D. cementite E. all of the above...
- Phosphor bronze contains____________________?
- A. 0.5% of phosphorous B. 1% phosphorous C. 2.5% phosphorous D. 5% phosphorous E. none of the above...
- By severely deforming a metal in a particular direction it becomes _________________?
- A. ductile B. malleable C. homogeneous D. isotropic E. anisotropic...
- Basic constituents of Monel metal are _________________?
- A. nickel, copper B. nickel, molybdenum C. zinc, tin, lead D. nickel, lead and tin E. none of the above...
- The number of electrons in 1 cm3 of metal would be of the order of_______________?
- A. 1010 B. TO16 C. 1022 D. 1040 E. 1052...
- Gun metal contains__________________?
- A. 70% copper and 30% zinc B. 90% copper and 10% tin C. 85-92% copper and rest tin with little lead and nickel D. 70-78% copper and rest tin E. 85-92% copper and rest zinc...
- The correct composition of Babbit metal is__________________?
- A. 87.75% Sn, 4% Cu, 8% Sb, 0.25% Bi B. 90% Sn, 2% Cu, 4% Sb, 2% Bi, 2% Mg C. 87% Sn, 4% Cu, 8% Sb, 1% Al D. 82% Sn, 4% Cu, 8% Sb, 3% Al, 3% Mg E. none of the above...
- Babbit metal is a_________________?
- A. lead base alloy B. tin base alloy C. copper base alloy D. all of the above E. A. and C. above...
- Muntz metal contains copper and zinc in the ratio of________________?
- A. 50 : 50 B. 40 : 60 C. 60 : 40 D. 20 : 80 E. 80 : 20...
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