Mechanical Engineering - Engineering Materials

46. 

Monel metal contains

A. 65% nickel, 15% chromium and 20% iron
B. 68% nickel, 29% copper and 3% other constituents
C. 80% nickel and 20% chromium
D. 80% nickel, 14% chromium and 6% iron

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

47. 

A fine grained steel

A. is less tough and has a greater tendency to distort during heat treatment
B. is more ductile and has a less tendency to distort during heat treatment
C. is less tough and has a less tendency to distort during heat treatment
D. is more ductile and has a greater tendency to distort during heat treatment

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

48. 

Babbit metal contains

A. 50% tin and 50% antimony
B. 66% tin, 30% copper and 4% antimony
C. 88% tin, 4% copper and 8% antimony
D. 92% tin, 6% copper and 2% antimony

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

49. 

A steel with 0.8% carbon is known as

A. eutectoid steel
B. hyper-eutectoid steel
C. hypo-eutectiod steel
D. none of these

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

50. 

When a steel containing more than 0.8% carbon is cooled slowly below the lower critical point, it consists of

A. mainly pearlite
B. mainly ferrite
C. ferrite and pearlite
D. pearlite and cementite

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

« Prev   1 2 3 4 5 6 7 8 9 10