Delta metal is an alloy of__________________?

A. copper, zinc and iron
B. iron, nickel and copper
C. iron, lead and tin
D. iron, aluminium and magnesium
E. copper, zinc and antimony

Related Mcqs:

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...
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...
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...
Delta iron occurs at temperature of_______________?
A. room temperature B. above melting point C. between 1400°C and 1539°C D. between 910°C and 1400°C E. none of the above...
German silver is an alloy of___________________?
A. silver and some impurities B. refined silver C. nickel, copper and zinc D. nickel and copper E. silver and gold...
Inconel is an alloy of___________________?
A. nickel, chromium and iron B. nickel, copper C. nickel, chromium D. nickel, zinc E. nickel, lead...
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...
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...
The alloy used for making electrical resistances and heating elements is____________________?
A. nichrome B. invar C. magnin D. elinvar E. peiminvar...
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...