Home/Questions

## Askmemetallurgy Latest Questions

### Poll Results

60%(A) 1705 kg, 431 kg ( 15 voters )
0%(B) 2131 kg, 546 kg
36%(C) 1705 kg, 331 kg ( 9 voters )
4%(D) 1500 kg, 431 kg ( 1 voter )

Based On 25 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

83.33%(A) P-2, Q-1, R-4, S-3 ( 5 voters )
0%(B) P-4, Q-1, R-2, S-3
16.67%(C) P-4, Q-3, R-1, S-2 ( 1 voter )
0%(D) P-2, Q-3, R-4, S-1

Based On 6 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

66.67%(A) ∆𝑃𝑅 / 2𝐿 ( 4 voters )
0%(B) ∆𝑃𝑅/ 𝐿
33.33%(C) 3∆𝑃𝑅 / 2𝐿 ( 2 voters )
0%(D) 2∆𝑃𝑅 / 𝐿

Based On 6 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

80%(A) 200 K, 0.5 K W-1 ( 4 voters )
0%(B) 400 K, 1.0 K W-1
0%(C) 200 K, 0.25 K W-1
20%(D) 500 K, 0.5 K W-1 ( 1 voter )

Based On 5 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

80%(A) [1̅01](111) ( 4 voters )
20%(B) [1̅10](111) ( 1 voter )
0%(C) [101](111̅)
0%(D) [011](111̅)

Based On 5 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

0%(A) An oversized solute atom would preferentially migrate below the slip plane of an edge dislocation.
83.33%(B) A spherically symmetric point defect can interact with both the hydrostatic and shear stress fields of a dislocation. ( 5 voters )
16.67%(C) A point defect can locally modify the elastic modulus and thereby can change the interaction energy. ( 1 voter )
0%(D) Vacancies are attracted towards the compressive region of dislocation.

Based On 6 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

0%(A) D𝐻𝑠𝑜𝑙𝑖𝑑 mix= 0 and D𝐻𝑙𝑖𝑞𝑢𝑖𝑑 = 0 𝑚𝑖𝑥
60%(B) D𝐻mix 𝑠𝑜𝑙𝑖𝑑 ≪ 0 and D𝐻𝑙𝑖𝑞𝑢𝑖𝑑 = 0 𝑚𝑖𝑥 ( 3 voters )
20%(C) D𝐻mix 𝑠𝑜𝑙𝑖𝑑 > 0 and D𝐻𝑙𝑖𝑞𝑢𝑖𝑑 = 0 𝑚𝑖𝑥 ( 1 voter )
20%(D) D𝐻mix 𝑠𝑜𝑙𝑖𝑑 = 0 and D𝐻𝑙𝑖𝑞𝑢𝑖𝑑 << 0 𝑚𝑖𝑥 ( 1 voter )

Based On 5 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

0%(A) 0
23.08%(B) 1 ( 3 voters )
76.92%(C) 2 ( 10 voters )
0%(D) 3

Based On 13 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

0%(A) P-4, Q-3, R-2, S-1
0%(B) P-2, Q-1, R-3, S-4
100%(C) P-2, Q-1, R-4, S-3 ( 7 voters )
0%(D) P-3, Q-2, R-1, S-4

Based On 7 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

0%(A) P-1, Q-2, R-3, S-4
66.67%(B) P-3, Q-1, R-4, S-2 ( 4 voters )
33.33%(C) P-3, Q-4, R-1, S-2 ( 2 voters )
0%(D) P-1, Q-4, R-3, S-2

Based On 6 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

83.33%(A) 3 ( 5 voters )
16.67%(B) 1 ( 1 voter )
0%(C) 4
0%(D) 6

Based On 6 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

4.17%(A) Roasting ( 2 voters )
87.5%(B) Leaching ( 42 voters )
6.25%(C) Zone refining ( 3 voters )
2.08%(D) Smelting ( 1 voter )

Based On 48 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

65.79%(A) Silicon ( 25 voters )
18.42%(B) Carbon ( 7 voters )
7.89%(C) Manganese ( 3 voters )
7.89%(D) Phosphorus ( 3 voters )

Based On 38 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

0%(A) Concentration versus time plot is a straight line.
60%(B) Increase in concentration of reacting species increases the rate of reaction. ( 6 voters )
10%(C) Half-life depends on the initial concentration and zero-order rate constant. ( 1 voter )
30%(D) Rate of reaction depends on temperature. ( 3 voters )

Based On 10 Votes

### Participate in Poll, Choose Your Answer.

For a zeroth order chemical reaction, which one of the following is FALSE?

**For a zeroth order chemical reaction, which one of the following is FALSE?**

### Poll Results

4.76%(A) Oil > Water > Brine > Air ( 1 voter )
19.05%(B) Brine > Oil > Water > Air ( 4 voters )
57.14%(C) Brine > Water > Oil > Air ( 12 voters )
19.05%(D) Water > Brine > Oil > Air ( 4 voters )

Based On 21 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

23.08%(A) Nickel ( 3 voters )
23.08%(B) Manganese ( 3 voters )
15.38%(C) Carbon ( 2 voters )
38.46%(D) Silicon ( 5 voters )

Based On 13 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

72.73%(A) The minimum creep rate is obtained in the primary stage (stage I). ( 8 voters )
18.18%(B) Creep resistance decreases with decrease in grain size. ( 2 voters )
0%(C) Coble creep occurs via grain boundary diffusion.
9.09%(D) Nabarro-Herring creep occurs via lattice diffusion. ( 1 voter )

Based On 11 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

12.5%(A) True stress is always higher than the engineering stress. ( 1 voter )
62.5%(B) At the ultimate tensile stress point on the true stress - strain curve, 𝑑 sigma/ d E = 0 𝑑 ( 5 voters )
0%(C) Resilience is the area under the elastic region of the engineering stress - strain curve.
25%(D) Maximum true stress does not correspond to the maximum load. ( 2 voters )

Based On 8 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

16.67%(A) 𝐼𝑓 delta 𝑯𝒎𝒊𝒙= 0, then 𝑎𝐵 < 𝑋𝐵 ( 1 voter )
16.67%(B) 𝐼𝑓 delta Hmix = 0, then 𝑎𝐵 > 𝑋𝐵 ( 1 voter )
16.67%(C) 𝐼𝑓 delta Hmix > 0, then 𝑎𝐵 < 𝑋𝐵 ( 1 voter )
50%(D) 𝐼𝑓 delta Hmix< 0, then 𝑎𝐵 < 𝑋𝐵 ( 3 voters )

Based On 6 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

0%(A)
0%(B)
28.57%(C) ( 2 voters )
71.43%(D) ( 5 voters )

Based On 7 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

29.17%(A) Investment casting ( 7 voters )
0%(B) Die casting
8.33%(C) Squeeze casting ( 2 voters )
62.5%(D) Directional solidification ( 15 voters )

Based On 24 Votes

### Participate in Poll, Choose Your Answer.

### Poll Results

0%(A) 0, 2, 2
0%(B) 1, 1, 2
100%(C) 0, 1, 2 ( 1 voter )
0%(D) 0, 1, 3

Based On 1 Vote

### Participate in Poll, Choose Your Answer.

### Poll Results

100%(A) 1 / 4 ( 1 voter )
0%(B) 1 / 8
0%(C) 1 / 16
0%(D) 1 / 32

Based On 1 Vote

### Participate in Poll, Choose Your Answer.

Consider a square sheet of side 1 unit. The sheet is first folded along the main diagonal. This is followed by a fold along its line of symmetry. The resulting folded shape is again folded along its line of symmetry. ...Read more

**Consider a square sheet of side 1 unit. The sheet is first folded along the main diagonal. This is followed by a fold along its line of symmetry. The resulting folded shape is again folded along its line of symmetry. The area of each face of the final folded shape, in square units, equal to **