Which of the following is an alloy of nickel and copper ?

Related Mcqs:

1. 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

2. German silver is an alloy of copper, nickel and________________?

   A. Zinc
   B. Silver
   C. Tin
   D. Lead

3. 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

4. Which of the following is not a nickel based alloy ?

   A. Inconel
   B. Hastelloys
   C. Nimonics
   D. Babbitt metal

5. Which of the following is not an alloy of nickel and chromium ?

   A. Inconel
   B. Hastelloy
   C. Nimonic alloys
   D. Duralumin

6. Addition of nickel to copper improves its_________________?

   A. Machinability
   B. Ductility
   C. Strength
   D. Hardness

7. Nickel and copper are the basic constituents of__________________?

   A. Hastelloy
   B. Monel metal
   C. German silver
   D. Inconel

8. 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

9. Invar used in thermocouples is an alloy of nickel and________________?

   A. Iron
   B. Copper
   C. Chromium
   D. Lead

10. Which of the following is not an alloy of copper ?

    A. Muntz metal
    B. Admiralty gun metal
    C. German silver
    D. Pewter metal