Related Questions

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
A metallic alloy in general as compared to their pure metal components is
A More corrosion resistant
B Having higher melting point
C Having lower hardness, reactivity and fusibility
D Having lower electrical conductivity
Which of the following metals forms an amalgam with other metals?
A Tin
B Mercury
C Lead
D Zinc
Which of the following metals form an amalgam with other metals ?
A Lead
B Tin
C Zinc
D Mercury
The metallic sheath may be made of lead or lead alloy or of aluminum.
A Yes
B No
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
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
When the molten metal is fed in the cavity of a metallic mould by gravity, the method of casting is known as
A Die casting method
B Slush casting method
C Permanent mould casting method
D Centrifugal casting method
By increasing impurity content in the metal alloy the residual resistivity always
A Decreases
B Increases
C Remains constant
D Becomes temperature independent
Solder metal is an alloy of
A Lead and tin
B Lead and antimony
C Copper and zinc
D Copper and tin

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