A. Iron
B. Copper
C. Chromium
D. Lead
Related Mcqs:
- German silver is an alloy of copper, nickel and________________?
A. Zinc
B. Silver
C. Tin
D. Lead - Which of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (1/20th of ordinary metals) ?
A. Invar
B. Constantan
C. Chromel
D. Alumel - Constantan used in thermocouples is an alloy of___________________?
A. Iron & copper
B. Copper & aluminium
C. Lead & tin
D. None of these - Invar contains the highest percentage of___________________?
A. Vanadium
B. Iron
C. Tungsten
D. Cobalt - A steel alloy containing 36% nickel is called _____________________, which has a zero co-efficient of expansion?
A. Austenitic stainless steel
B. Heat resisting steel
C. Invar
D. High speed steel - An alloy used as thermocouple material comprises of 40% nickel and 60% copper. It is called____________________?
A. Constantan
B. Kanthal
C. Chromel
D. German silver - Which of the following is an alloy of nickel and copper ?
A. Hastelloy
B. Duriron
C. Monel
D. Inconel - Which of the following is not a nickel based alloy ?
A. Inconel
B. Hastelloys
C. Nimonics
D. Babbitt metal - Which of the following is not an alloy of nickel and chromium ?
A. Inconel
B. Hastelloy
C. Nimonic alloys
D. Duralumin - For platinum thermocouples, lead wires are made of___________________?
A. Copper & copper-nickel alloys
B. Copper & iron
C. Iron & nickel
D. Tin & nickel
