QuizMaster

Question: In a unit cell of close packed hexagonal space lattice, there are twenty four atoms.
[A].

Correct

[B].

Incorrect

Answer: Option B

Explanation:

No answer description available for this question.

Question: In a unit cell of a body centred cubic space lattice, there are __________ atoms.
[A].

six

[B].

nine

[C].

fourteen

[D].

seventeen

Answer: Option B

Explanation:

No answer description available for this question.

Question: The austenitic stainless steel contains
[A].

18% chromium and 8% nickel

[B].

8% chromium and 18% nickel

[C].

14% chromium and 0.35% carbon

[D].

14% nickel and 0.35% carbon

Answer: Option A

Explanation:

No answer description available for this question.

Question: A steel containing 16 to 18% chromium and about 0.12% carbon is called
[A].

ferritic stainless steel

[B].

austenitic stainless steel

[C].

martensitic stainless steel

[D].

nickel steel

Answer: Option A

Explanation:

No answer description available for this question.

Question: A steel containing 12 to 14% chromium and 0.12 to 0.35% carbon is called martensitic stainless steel.
[A].

True

[B].

False

Answer: Option A

Explanation:

No answer description available for this question.

Question: In high speed steels, vanadium adds to the property of red hardness and tungsten and chromium add to high wear resistance.
[A].

True

[B].

False

Answer: Option A

Explanation:

No answer description available for this question.

Question: The blade of a power saw is made of
[A].

boron steel

[B].

high speed steel

[C].

stainless steel

[D].

malleable cast iron

Answer: Option B

Explanation:

No answer description available for this question.

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.

Question: The alloying element which reduces the formation of iron sulphide in steel is
[A].

chromium

[B].

nickel

[C].

vanadium

[D].

manganese

Answer: Option D

Explanation:

No answer description available for this question.

Question: The alloy, mainly used for corrosion resistance in stainless steels is
[A].

silicon

[B].

manganese

[C].

carbon

[D].

chromium

Answer: Option D

Explanation:

No answer description available for this question.