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

Byadmin January 29, 2019August 16, 2021

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

Engineering Materials

Super conduction by metals is observed in the temperature range of_________________?

Super conduction by metals is observed in the temperature range of_________________?

A. below 10°K
B. above 100°K
C. around 0°C
D. around 100°C
E. above 1000°C

Read More Super conduction by metals is observed in the temperature range of_________________?
Engineering Materials

Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio _____________________?

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

Read More Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio _____________________?
Engineering Materials | Mechanical Engineering

The alloying element which increases residual magnetism and coercive magnetic force in steel for magnets is

Question: The alloying element which increases residual magnetism and coercive magnetic force in steel for magnets is
[A].

chromium
[B].
nickel
[C].
vanadium
[D].
cobalt

Answer: Option D

Explanation:

No answer description available for this question.

Read More The alloying element which increases residual magnetism and coercive magnetic force in steel for magnets is
Engineering Materials | Mechanical Engineering

Cast iron is manufactured in

Question: Cast iron is manufactured in
[A].

blast furnace
[B].
cupola
[C].
open hearth furnace
[D].
bessemer converter

Answer: Option B

Explanation:

No answer description available for this question.

Read More Cast iron is manufactured in
Engineering Materials

Sulphur in pig iron tends to make it___________________?

Sulphur in pig iron tends to make it___________________?

A. hard’
B. soft
C. ductile
D. tough
E. malleable

Read More Sulphur in pig iron tends to make it___________________?
Engineering Materials

Addition of lead and bismuth to aluminium results in_________________?

Addition of lead and bismuth to aluminium results in_________________?

A. improvement of casting characteristics
B. improvement of corrosion resistance
C. one of the best known age and precipitation-hardening systems
D. improving machinability
E. none of the above

Read More Addition of lead and bismuth to aluminium results in_________________?

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