Engineering Materials

Question: Admirality gun metal contains
[A].

60% copper, 35% zinc and 5% manganese

[B].

76% copper, 20% silicon and 4% zinc

[C].

82% copper, 12% zinc and 6% manganese

[D].

88% copper, 10% tin and 2% zinc

Answer: Option D

Explanation:

No answer description available for this question.

Question: Babbit metal is a
[A].

lead-base alloy

[B].

copper-base alloy

[C].

tin-base alloy

[D].

cadmium-base alloy

Answer: Option C

Explanation:

No answer description available for this question.

Question: Manganese bronze contains more copper than silicon bronze.
[A].

Yes

[B].

No

Answer: Option B

Explanation:

No answer description available for this question.

Question: Beryllium bronze contains
[A].

60% copper and 40% beryllium

[B].

80% copper and 20% beryllium

[C].

97.75% copper and 2.25% beryllium

[D].

99% copper and 1% beryllium

Answer: Option C

Explanation:

No answer description available for this question.

Question: Nickel when added to copper improves
[A].

machinability

[B].

hardness

[C].

hardness and strength

[D].

strength and ductility

Answer: Option B

Explanation:

No answer description available for this question.

Question: In corrosion resistant properties, bronzes are __________ to brasses.
[A].

superior

[B].

inferior

Answer: Option A

Explanation:

No answer description available for this question.

Question: German silver contains
[A].

70% copper and 30% zinc

[B].

60% copper and 40% zinc

[C].

59% copper, 40% zinc and 1% tin

[D].

60.45% copper, 35.2% zinc and 5.35% nickel

Answer: Option D

Explanation:

No answer description available for this question.

Question: Muntz metal (Yellow brass) contains
[A].

70% copper and 30% zinc

[B].

60% copper and 40% zinc

[C].

59% copper, 40% zinc and 1% tin

[D].

60.45% copper, 35.2% zinc and 5.35% nickel

Answer: Option B

Explanation:

No answer description available for this question.

Question: An alloy of copper, tin and zinc is known as
[A].

brass

[B].

bronze

[C].

gun metal

[D].

muntz metal

Answer: Option C

Explanation:

No answer description available for this question.

Question: Bronze is an alloy of
[A].

copper and zinc

[B].

copper and tin

[C].

copper, tin and zinc

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.