Related Questions

Duralumin is an alloy of aluminium and copper. Percentage of copper in duralumin is
A 38
B 26
C 16
D 4
If 2 kg of metal, of which 1/3 is zine and the rest is copper , be mixed with 3 kg of metal, of which 1/4 is zinc and the rest is copper , then what will be the ratio of zinc to copper in the mixture?
A 17 : 43
B 13 : 42
C 19 : 43
D 15 : 42
If 2 kg of metal, of which 1/3 is zinc and the rest is copper s, be mixed with 3 kg of metal , of which 1/4 is zinc and the rest is copper , then what will be the ratio of zinc to copper in the mixture?
A 13 : 42
B 19 : 43
C 15 : 42
D 17 : 43
Bronze is an alloy of
A Copper & tin
B Copper & zinc
C Copper & iron
D Iron & nickel
Aluminium bronze contains aluminium and copper in the ratio of
A 50 : 50
B 40 : 60
C 60 : 40
D 10 : 90
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
The partial pressure of each constituent present in an alloy is __________ the total vapor pressure exerted by the alloy.
A Less than
B Equal to
C More than
D Either B or C; depends on the type of alloy
Constantan 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
German silver is an alloy of copper, nickel and
A Zinc
B Silver
C Tin
D Lead
An alloy of copper, tin and zinc is known as
A Brass
B Bronze
C Gun metal
D Muntz metal

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