Related Questions

Duralumin is an alloy of aluminium and copper. Percentage of copper in duralumin is
A 38
B 26
C 16
D 4
'Age hardening' of duralumin is due to
A Copper
B Magnesium
C Both A & B
D Neither A nor B
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
What is an alloy?
A Metals melted in liquid form.
B Industrial meterials which are not very good
C A planned combination of materials for a specifice purpose.
D Impure materials that occur accidentally.
Which of the following is not an alloy?
A Duralumin
B Bismuth
C Magnalium
D Alnico
Which of the following is an alloy of cobalt?
A Vitallium
B Brass
C Invar
D Solder
Which of the following material is not used in alloy steels?
A Molybdenum
B Nickel
C Chromium
D Sodium
What are the main components of Brass Alloy?
A Copper and Zinc
B Copper and Strontium
C Copper, Zinc and Nickel
D Copper and Nickel

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