Related Questions

Nickel percentage in invar which is an iron-nickel alloy, and is used as a thermocouple material is
A 12
B 36
C 54
D 68
Invar tapes used for measuring base lines, is made of nickel-iron alloy containing nickel
A 24 %
B 36 %
C 40 %
D 60 %
Which of the following is not a copper based alloy with nickel?
A German silver
B Monel metal
C Inconel
D Constantan
Which of the following is not an alloy of nickel and chromium?
A Inconel
B Hastealloy
C Nimonic alloys
D Duralumin
Which of the following is an alloy of nickel and copper?
A Hastelloy
B Duriron
C Monel
D Inconel
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
German silver is an alloy of copper, nickel and
A Zinc
B Silver
C Tin
D Lead
Invar used in thermocouples is an alloy of nickel and
A Iron
B Copper
C Chromium
D Lead
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

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