Related Questions

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
Which of the following alloys does not have copper as one of the constituents?
A Delta metal
B Monel metal
C Constantan
D Nichrome
Copper is a metal "which" is "easily" worked and which "mixes" well with "other" metals to form alloys. "No error".
A which
B mixes
C other
D No error
Identify the incorrect part of the sentence : Copper is a metal which is easily worked and which mixes well with other metals to form alloys.
A which
B easily
C mixes
D other
In welding copper alloys with TIG arc welding
A Direct current with straight polarity is used
B Direct current with reversed polarity is used
C Alternating current is used
D Any one of these
Australia imports, no copper in Australia equals 85% of the amount of copper produced by the private industry's use of produced by the country's mines each year. If the information above is true.which of the following conclusions can most reliably be drawn?
A Australia imports copper ore from other countries.
B SOme copper in Australia is recycled.
C Asutralia 's industry wasters substantial amounts of copper.
D Each year, Austria produces more copper than the previous year.
Which of the following metals can displace copper from copper sulphate solution ?
A Platinum
B Mercury
C Iron
D Gold
An ore contains 26% of copper . To get 91 kgs of copper the quantity of are required is -
A 350 kg
B 240 kg
C 340 kg
D None of these
Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is
A Approximately equal to one
B Less than one
C Great than one
D Cannot be found

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