The usual composition of a soldering alloy is__________________?

Related Mcqs:

1. Constantant 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 E. copper and chromium...

2. 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 E. antimony, copper and zinc...

3. The correct composition of Babbit metal is__________________?

   A. 87.75% Sn, 4% Cu, 8% Sb, 0.25% Bi B. 90% Sn, 2% Cu, 4% Sb, 2% Bi, 2% Mg C. 87% Sn, 4% Cu, 8% Sb, 1% Al D. 82% Sn, 4% Cu, 8% Sb, 3% Al, 3% Mg E. none of the above...

4. Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is__________________?

   A. silver metal B. duralumin C. Hastelloy D. monel metal E. invar...

5. The composition of silver solder is ___________________?

   A. silver, copper, zinc B. silver, tin, nickel C. silver, lead, zinc D. silver, copper, aluminium E. silver, lead, tin...

6. Inconel is an alloy of___________________?

   A. nickel, chromium and iron B. nickel, copper C. nickel, chromium D. nickel, zinc E. nickel, lead...

7. Solder is an alloy consisting of________________?

   A. tin, antimony, copper B. tin and copper C. tin and lead D. lead and zinc E. lead and copper...

8. Brass (alloy of copper and zinc) is an example of__________________?

   A. substitutional solid solution B. interstitial solid solution C. intermetallic compounds D. all of the above E. none of the above...

9. 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 E. 50 : 10 : 20 : 20...

10. Elinvar, an alloy used in precision instruments, hair springs for watches, etc. contains the following element as principal alloying element__________________?

    A. iron B. copper C. aluminium D. zinc E. nickel...