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Alloy & Steel

1. The basic constituents of hastealloy are:

Al and Cu
Ni and Mo
Ni and Cu
none of these
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2. Basic constituents of Monel metal are:

Ni and Cu
Ni and Mo
Zn, Pb and Sn
Ni, Pb and Sn
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3. German silver is an alloy of:

silver and some impurities
Ni, Cu and Zn
Ni and Cu
Ag and Au
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4. Inconel is an alloy of:

Ni, Cr and Fe
Ni and Cu
Ni and Cr
Ni and Zn
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5. Solder is an alloy consisting of:

Sn, Sb and Cu
Sn and Cu
Sn and Pb
Sn and Zn
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6. Brass contains:

70% Cu and 30% Zn
90% Cu and 10% Sn
85-92% Cu and rest Sn with little Pb and Ni
70% Cu and 30% Sn
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7. Admiralty brass used for steam condenser tubes contains copper and zinc in the following ratio:

50:50
30:70
70:30
40:60
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8. Alnico, an alloy used extensively for permanent magnets contain iron, nickel, aluminium and cobalt in the following ratio:

50:20:20:10
40:30:20:10
50:20:10:20
30:20:30:20
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9. Bell metal contains:

70% Cu and 30% Zn
90% Cu and 10% Sn
85-92% Cu and rest Sn with little Sn, Pb and Ni
70-75% Cu and rest Sn
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10. Structural steel contains following principal alloying elements:

Ni, Cr and Mn
W, Mo and P
Pb, Sn and Al
Zn, S and Cr
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11. Muntz metal contains Cu and Zn in the ratio of:

50:50
40:60
60:40
20:80
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12. Gun metal contains:

70% Cu and 30% Zn
90% Cu and 10% Sn
85-92% Cu and rest Sn with little Pb and Ni
70-78% Cu and rest Sn
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