Metal Alloy – 1 – 2

6. Nichrome is an alloy of :

(a) cobalt, copper and nickel
(b) nickel, tin and zinc
(c) nickel, chromium and iron
(d) chromium, cobalt and nickel

7. Constantan contains :

(a) copper and nickel
(b) copper and tungsten
(c) tungsten and silver
(d) silver and tin

8. An alloy containing 71% copper, 28 % zinc and 1% tin is known as :

(a) Cartridge brass
(b) yellow brass
(c) admirality brass
(d) low brass

9. Cementite is :

(a) Fe3c3
(b) fe2c2
(c) fe3c
(d) fe3c2

10. Bronze is an alloy of :

(a) copper
(b) aluminium
(c) silver
(d) carbon

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