A. silver and some impurities
B. refined silver
C. nickel, copper and zinc
D. nickel and copper
E. silver and gold
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Related Mcqs:
- German silver contains_________________?
- A. 1% silver B. 2.5% silver C. 5% silver D. 10% silver E. 100% silver...
- Constantant an alloy used in thermocouples is an alloy of __________________?
- A. copper and tin B. copper and zinc C. copper and iron D. copper and nickel E. copper and chromium...
- Perminvar alloy having constant permeability is an alloy of________________?
- A. nickel, copper and iron B. nickel, copper and zinc C. copper, nickel and antimony D. iron, zinc and bismuth E. antimony, copper and zinc...
- Inconel is an alloy of___________________?
- A. nickel, chromium and iron B. nickel, copper C. nickel, chromium D. nickel, zinc E. nickel, lead...
- The composition of silver solder is ___________________?
- A. silver, copper, zinc B. silver, tin, nickel C. silver, lead, zinc D. silver, copper, aluminium E. silver, lead, tin...
- Solder is an alloy consisting of________________?
- A. tin, antimony, copper B. tin and copper C. tin and lead D. lead and zinc E. lead and copper...
- Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is__________________?
- A. silver metal B. duralumin C. Hastelloy D. monel metal E. invar...
- The usual composition of a soldering alloy is__________________?
- A. tin, lead and small percentage of antimony B. tin and lead C. tin, lead and silver D. tin and copper E. tin, copper and lead...
- The alloy used for making electrical resistances and heating elements is____________________?
- A. nichrome B. invar C. magnin D. elinvar E. peiminvar...
- Delta metal is an alloy of__________________?
- A. copper, zinc and iron B. iron, nickel and copper C. iron, lead and tin D. iron, aluminium and magnesium E. copper, zinc and antimony...
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