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0%(B) 0.74
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100%(D) 0.94 ( 3 voters )
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GATE MT 2013 Q52. Statement for Linked Answer Questions 52 and 53: The density and associated crystallinity for two polypropylene samples are as follows: Density of totally amorphous polypropylene is___.
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0%(A)
16.67%(B) ( 1 voter )
16.67%(C) ( 1 voter )
66.67%(D) ( 4 voters )
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GATE MT 2013 Q50. Common Data for Questions 50 and 51: Integral enthalpy of mixing (in J/mol) of liquid (Cu, Zn) solution can be approximated by ΔHm(mix)= -19250xcu xzn. The corresponding partial molar enthalpy of mixing (in J/mol) for Cu is
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GATE MT 2013 Q48. Common Data for Questions 48 and 49: A steel specimen containing 0.2 wt.% C is carburized in an atmosphere that maintains a carbon content of 1.2 wt.% C at the surface of the specimen. Given: For carbon diffusion in austenite: D0=2.0×10-5 m2 /s Activation energy for diffusion, Q=142 kJ/mol . What is the depth (in m) from the surface of the specimen at which a composition of 0.4 wt.% C is obtained after carburizing at 870°C for 10 h?
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25%(A) a is true but r is false ( 1 voter )
25%(B) a is false but r is true ( 1 voter )
50%(C) both a and r are true, and r is the reason for a ( 2 voters )
0%(D) both a and r are true, but r is not the reason for a
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62.5%(A) P-3, Q-4, R-2, S-1 ( 5 voters )
12.5%(B) P-2, Q-3, R-1, S-4 ( 1 voter )
12.5%(C) P-4, Q-2, R-3, S-1 ( 1 voter )
12.5%(D) P-1, Q-3, R-2, S-4 ( 1 voter )
Based On 8 Votes

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GATE MT 2013 Q41. Match the unit operation in Group I with its corresponding principle in Group II:
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100%(A) Sn undergoes oxidation ( 2 voters )
0%(B) H+ undergoes reduction
0%(C) Sn2+ undergoes reduction
0%(D) No net reaction
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For the following electrochemical reaction Sn + 2H+ = Sn2+ + H2, if the solution has Sn2+ concentration 10-2 M and pH 5 at 298 K, which of the following is true? Given: standard reduction potential for Sn2+ + ...Read more

For the following electrochemical reaction Sn + 2H+ = Sn2+ + H2, if the solution has Sn2+ concentration 10-2 M and pH 5 at 298 K, which of the following is true? Given: standard reduction potential for Sn2+ + 2e– →Sn is -0.136 V versus SHE; H 2 p = 1 atm

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25%(A) P-2, Q-4, R-3, S-1 ( 1 voter )
0%(B) P-4, Q-2, R-1, S-3
0%(C) P-3, Q-1, R-2, S-4
75%(D) P-1, Q-4, R-2, S-3 ( 3 voters )
Based On 4 Votes

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GATE MT 2013 Q39. Match the suitability of non-destructive testing method in Group I for the detection of defects listed in Group II
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78.57%(A) P-2, Q-4, R-1, S-3 ( 11 voters )
7.14%(B) P-1, Q-3, R-2, S-4 ( 1 voter )
7.14%(C) P-2, Q-3, R-4, S-1 ( 1 voter )
7.14%(D) P-3, Q-2, R-1, S-4 ( 1 voter )
Based On 14 Votes

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GATE MT 2013 Q38. Match the powder production technique given in Group I with the corresponding shape listed in Group II
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50%(A) P-1, Q-2, R-4, S-3 ( 3 voters )
0%(B) P-2, Q-3, R-1, S-4
0%(C) P-3, Q-4, R-2, S-1
50%(D) P-2, Q-1, R-4, S-3 ( 3 voters )
Based On 6 Votes

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GATE MT 2013 Q37. Match the defects listed in Group I with the corresponding manufacturing process listed in Group II
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0%(A) 8.08 × 10^57
25%(B) 2.02 × 1057 ( 1 voter )
0%(C) 0.517
75%(D) 0.129 ( 3 voters )
Based On 4 Votes

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0%(A) 375
7.69%(B) 412 ( 1 voter )
7.69%(C) 327 ( 1 voter )
84.62%(D) 447 ( 11 voters )
Based On 13 Votes

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0%(A) 110
75%(B) 125 ( 6 voters )
12.5%(C) 140 ( 1 voter )
12.5%(D) 165 ( 1 voter )
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10%(A) P-1, Q-3, R-4, S-2 ( 1 voter )
10%(B) P-4, Q-2, R-3, S-1 ( 1 voter )
80%(C) P-3, Q-1, R-4, S-2 ( 8 voters )
0%(D) P-2, Q-3, R-1, S-4
Based On 10 Votes

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GATE MT 2013 Q32. Match the metal in Group I with its corresponding ore in Group II.