A. nickel, chromium and iron
B. nickel, copper
C. nickel, chromium
D. nickel, zinc
E. nickel, lead
Related Mcqs:
- 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 - German silver is an alloy of___________________?
A. silver and some impurities
B. refined silver
C. nickel, copper and zinc
D. nickel and copper
E. silver and gold - 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 - Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio _____________________?
A. 50 : 20 : 20 : 10
B. 40 : 30 : 20 : 10
C. 50 : 20 : 10 : 20
D. 30 : 20 : 30 : 20
E. 50 : 10 : 20 : 20 - The alloy used for making electrical resistances and heating elements is____________________?
A. nichrome
B. invar
C. magnin
D. elinvar
E. peiminvar - Elinvar, an alloy used in precision instruments, hair springs for watches, etc. contains the following element as principal alloying element__________________?
A. iron
B. copper
C. aluminium
D. zinc
E. nickel - 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
