A. silver and some impurities
B. refined silver
C. nickel, copper and zinc
D. nickel and copper
E. silver and gold
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
