Related Questions

An alloy used in making heating elements for electric heating device is
A Solder
B Alloy Steel
C Nichrome
D German Silver
Which of the following metal is used in making electrical resistance wire for electric furnaces and heating elements?
A Babbitt metal
B Monel metal
C Nichrome
D Phosphor bronze
In resistance heating highest working temperature is obtained from heating elements made of
A Nickel copper
B Nichrome
C Silicon carbide
D Silver
Which of the following alloy steels has the energy saving properties making it suitable for use in electrical machines?
A Silicon steel
B Chromium steel
C Molybdenum steel
D None of these
High resistance electrical heating elements/wire are not made of
A Marageing steel
B Nimonic alloys
C Kanthal wire
D Nichrome
Which of the following materials is used for making coils of standard resistances ?
A Copper
B Nichrome
C Platinum
D Manganin
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
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
In an electric room heat convector the method of heating used is Resistance heating
A True
B False

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