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Askmemetallurgy Official
Askmemetallurgy Official
Asked: February 24, 2022In: DT & NDT

GATE MT 2022 Q5

Which one of the following Non Destructive Testing (NDT) techniques CANNOT be used to identify volume defects in the interior of a casting?

Which one of the following Non Destructive Testing (NDT) techniques CANNOT be used to identify volume defects in the interior of a casting?

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Askmemetallurgy Official
Poll
Askmemetallurgy Official
Asked: February 24, 2022In: DT & NDT

GATE MT 2022 Q4

Poll Results

50% (A) 111, 200, 220, 311 ( 1 voter )
0% (B) 110, 200, 211, 220
50% (B) 110, 200, 211, 220 ( 1 voter )
0% (D) 111, 200, 311, 220
Based On 2 Votes

The sequence of peaks corresponding to the planes (in the order of increasing 2𝜃) observed in the X-ray

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Answer
Ashish kumar pradhan
Ashish kumar pradhan
Asked: April 20, 2021In: DT & NDT

Which NDT test will you prefer for longitudinal and transverse cracks and why?

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Askmemetallurgy Official
Poll
Askmemetallurgy Official
Asked: March 6, 2021In: DT & NDT

GATE MT 2021 Q28. Match the nondestructive technique (in Column I) with its underlying phenomenon (in Column II):

Poll Results

5%(A) P-4, Q-3, R-2, S-1 ( 2 voters )
7.5%(B) P-2, Q-1, R-3, S-4 ( 3 voters )
87.5%(C) P-2, Q-1, R-4, S-3 ( 35 voters )
0%(D) P-3, Q-2, R-1, S-4
Based On 40 Votes

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2021 28
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Jhansi Kokkiligadda
Jhansi KokkiligaddaCopper
Asked: February 5, 2021In: DT & NDT

Can anyone suggest me a journal which includes characterization techniques like X-ray spectroscopy, Energy dispensive X ray spectroscopy, Electron energy loss spectroscopy, Atom probe tomography, Atomic force microscopy and XRD?

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Answer
Nandhakumar
NandhakumarSilver
Asked: December 23, 2020In: DT & NDT

What is the purpose of hardness measurement of steel in tensile tested specimen ?

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Jhansi Kokkiligadda
Jhansi KokkiligaddaCopper
Asked: September 13, 2020In: DT & NDT

What is resolution? On what factors resolution depends?

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Jawahar
Jawahar
Asked: August 11, 2020In: DT & NDT

How to calculate the Stress value and Strain % from the Load vs displacement curve ??? Is this correct to calculate the Strain % from the displacement ??

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Riya Roy
Riya RoyIron
Asked: July 6, 2020In: DT & NDT

What is Jominey test?

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Askmemetallurgy Official
Poll
Askmemetallurgy Official
Asked: July 1, 2020In: DT & NDT

GATE MT 2017 Q23. Dye penetrant test is based on the principle of:

Poll Results

4.04%A. Polarised sound waves in liquid ( 4 voters )
2.02%B. Magnetic domain ( 2 voters )
5.05%C. Absorption of X-rays ( 5 voters )
88.89%D. Capillary action ( 88 voters )
Based On 99 Votes

Participate in Poll, Choose Your Answer.

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Answer
Askmemetallurgy Official
Askmemetallurgy Official
Asked: June 30, 2020In: DT & NDT

GATE MT 2017 Q16.

The second peak in the powder X-ray diffraction pattern of a FCC metal occurs at a Bragg angle Ɵ (in degrees)= _______ (answer up to two decimal places) (Given 󠆹λCuKα= 0.154nm; lattice parameter of metal = 0.36nm)

The second peak in the powder X-ray diffraction pattern of a FCC metal occurs at a Bragg angle Ɵ (in degrees)= _______ (answer up to two decimal places)

(Given 󠆹λCuKα= 0.154nm; lattice parameter of metal = 0.36nm)

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Jhansi Kokkiligadda
Jhansi KokkiligaddaCopper
Asked: June 29, 2020In: DT & NDT

What are the main differences between Spark plasma sintering and microwave sintering? Short and brief points are appreciated than huge paragraphs.

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Jhansi Kokkiligadda
Jhansi KokkiligaddaCopper
Asked: June 24, 2020In: DT & NDT

Why XRD is done at large values of theta?

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Askmemetallurgy Official
Poll
Askmemetallurgy Official
Asked: June 21, 2020In: DT & NDT

GATE MT 2018 Q21. A long oil pipeline made of steel is suspected to have developed a scale on the inner surface due to corrosion. Which of the following non-destructive techniques is the most suitable for detecting and quantifying such a defect?

Poll Results

3.28%(A)Dye penetrant test ( 2 voters )
9.84%(B) Magnetic particle inspection ( 6 voters )
75.41%(C) Ultrasonic inspection ( 46 voters )
11.48%(D) Acoustic emission ( 7 voters )
Based On 61 Votes

Participate in Poll, Choose Your Answer.

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Askmemetallurgy Official
Askmemetallurgy Official
Asked: June 20, 2020In: DT & NDT

GATE MT 2018 Q20

In a powder diffraction experiment on BCC iron, the first peak occurs at 2𝜃 = 68.7°. The wavelength of X-rays is (in nm to three decimal places). Given: The lattice parameter of iron = 0.287 nm.

In a powder diffraction experiment on BCC iron, the first peak occurs at 2𝜃 = 68.7°. The wavelength of X-rays is (in nm to three decimal places).

Given: The lattice parameter of iron = 0.287 nm.

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Answer
Askmemetallurgy Official
Poll
Askmemetallurgy Official
Asked: June 10, 2020In: DT & NDT

GATE MT 2019 Q18. Beach marks are commonly observed on the fractured surface of metals after a ______.

Poll Results

14.86%Creep test ( 11 voters )
72.97%Fatigue test ( 54 voters )
6.76%Impact test ( 5 voters )
5.41%Compression test ( 4 voters )
Based On 74 Votes

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Answer
Askmemetallurgy Official
Poll
Askmemetallurgy Official
Asked: June 9, 2020In: DT & NDT

GATE MT 2019 Q15. In a typical scanning electron microscope (SEM) image, information about topography and atomic contrast are obtained from________.

Poll Results

12.94%Secondary electron and auger electron, respectively. ( 11 voters )
14.12%Primary electron and secondary electron, respectively. ( 12 voters )
55.29%Secondary electron and back-scatter electron, respectively. ( 47 voters )
17.65%Back-scatter electron and auger electron, respectively. ( 15 voters )
Based On 85 Votes

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Answer
Askmemetallurgy Official
Poll
Askmemetallurgy Official
Asked: June 9, 2020In: DT & NDT

GATE MT 2019 Q11. The most suitable non-destructive testing method for detecting small internal flaws in a dense bulk material is __________.

Poll Results

17.46%Dye penetrant method ( 22 voters )
63.49%Ultrasonic inspection ( 80 voters )
8.73%Eddy current testing ( 11 voters )
10.32%Magnetic particle inspection ( 13 voters )
Based On 126 Votes

Participate in Poll, Choose Your Answer.

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Answer
Vishal Pambhar
Vishal PambharGold
Asked: June 1, 2020In: DT & NDT

How we can differentiate easily phases.. Chi, Laves and Sigma in Duplex stainless steel?

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jvr05
jvr05Iron
Asked: May 23, 2020In: DT & NDT

Why do we need to have an area analysis before the spot analysis?

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Answer
Shetty
ShettyGold
Asked: May 22, 2020In: DT & NDT

How do we measure magnetic property in a material?

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Askmemetallurgy Official
Poll
Askmemetallurgy Official
Asked: May 6, 2020In: DT & NDT

GATE MT 2020 Q1. The dye penetrant used for detecting flaws is based on:

Poll Results

5.98%Magnetism ( 7 voters )
0.85%Sound propagation ( 1 voter )
2.56%X-ray absorption ( 3 voters )
90.6%Capillary action ( 106 voters )
Based On 117 Votes

Participate in Poll, Choose Your Answer.

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Answer
Askmemetallurgy Official
Poll
Askmemetallurgy Official
Asked: April 9, 2020In: DT & NDT

GATE MT 2016 Q.23 For dye-penetrant test, identify the CORRECT statement

Poll Results

9.09%(A) Pre- and post-cleaning of parts are not required ( 2 voters )
0%(B) Internal defects can be detected
18.18%(C) Surface oxides helps in crack identification ( 4 voters )
72.73%(D) Dye with low contact angle is required ( 16 voters )
Based On 22 Votes

Participate in Poll, Choose Your Answer.

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Answer
Askmemetallurgy Official
Poll
Askmemetallurgy Official
Asked: April 8, 2020In: DT & NDT

GATE MT 2016 Q14. A schematic of X-ray diffraction pattern of a single phase cubic polycrystal is given The miller indices of peak A is ____.

Poll Results

0%(A) 210
69.57%(B) 220 ( 16 voters )
21.74%(C) 222 ( 5 voters )
8.7%(D) 310 ( 2 voters )
Based On 23 Votes

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GATE MT 2016 Q14. A schematic of X-ray diffraction pattern of a single phase cubic polycrystal is given The miller indices of peak A is ____.
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Askmemetallurgy Official
Poll
Askmemetallurgy Official
Asked: April 4, 2020In: DT & NDT

GATE MT 2015 Q60. Match the following techniques are not applicable for detecting internal flaws in a ceramic material? 1.Liquid penetration test 2.Radiography 3.Ultrasonic testing 4.Eddy current method.

Poll Results

9.38%(A) 1 and 3 ( 3 voters )
9.38%(B) 3 and 4 ( 3 voters )
15.63%(C) 2 and 4 ( 5 voters )
65.63%(D) 1 and 4 ( 21 voters )
Based On 32 Votes

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