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Asked: January 17, 2023In: DT & NDT

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Askmemetallurgy OfficialGold

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?

Askmemetallurgy OfficialGold

Asked: February 24, 2022In: DT & NDT

GATE MT 2022 Q4

Poll Results

90.91% (A) 111, 200, 220, 311 ( 10 voters )

0% (B) 110, 200, 211, 220 ( 0 voters )

9.09% (B) 110, 200, 211, 220 ( 1 voter )

0% (D) 111, 200, 311, 220 ( 0 voters )

Based On 11 Votes

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

Ashish kumar pradhan

Asked: April 20, 2021In: DT & NDT

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

Askmemetallurgy OfficialGold

Asked: March 6, 2021In: DT & NDT

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

2021 28

Poll Results

3.77%(A) P-4, Q-3, R-2, S-1 ( 2 voters )

5.66%(B) P-2, Q-1, R-3, S-4 ( 3 voters )

90.57%(C) P-2, Q-1, R-4, S-3 ( 48 voters )

0%(D) P-3, Q-2, R-1, S-4 ( 0 voters )

Based On 53 Votes

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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?

NandhakumarSilver

Asked: December 23, 2020In: DT & NDT

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

Jhansi KokkiligaddaCopper

Asked: September 13, 2020In: DT & NDT

What is resolution? On what factors resolution depends?

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 ??

Asked: July 6, 2020In: DT & NDT

What is Jominey test?

Askmemetallurgy OfficialGold

Asked: July 1, 2020In: DT & NDT

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

Poll Results

3.67%A. Polarised sound waves in liquid ( 4 voters )

1.83%B. Magnetic domain ( 2 voters )

4.59%C. Absorption of X-rays ( 5 voters )

89.91%D. Capillary action ( 98 voters )

Based On 109 Votes

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Askmemetallurgy OfficialGold

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 󠆹λ_CuKα= 0.154nm; lattice parameter of metal = 0.36nm)

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.

Jhansi KokkiligaddaCopper

Asked: June 24, 2020In: DT & NDT

Why XRD is done at large values of theta?

Askmemetallurgy OfficialGold

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

2.74%(A)Dye penetrant test ( 2 voters )

10.96%(B) Magnetic particle inspection ( 8 voters )

75.34%(C) Ultrasonic inspection ( 55 voters )

10.96%(D) Acoustic emission ( 8 voters )

Based On 73 Votes

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Askmemetallurgy OfficialGold

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.

Askmemetallurgy OfficialGold

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

13.27%Creep test ( 13 voters )

76.53%Fatigue test ( 75 voters )

5.1%Impact test ( 5 voters )

5.1%Compression test ( 5 voters )

Based On 98 Votes

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Askmemetallurgy OfficialGold

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

14.55%Secondary electron and auger electron, respectively. ( 16 voters )

11.82%Primary electron and secondary electron, respectively. ( 13 voters )

57.27%Secondary electron and back-scatter electron, respectively. ( 63 voters )

16.36%Back-scatter electron and auger electron, respectively. ( 18 voters )

Based On 110 Votes

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Askmemetallurgy OfficialGold

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

16.34%Dye penetrant method ( 25 voters )

64.71%Ultrasonic inspection ( 99 voters )

9.8%Eddy current testing ( 15 voters )

9.15%Magnetic particle inspection ( 14 voters )

Based On 153 Votes

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Vishal PambharGold

Asked: June 1, 2020In: DT & NDT

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

jvr05Iron

Asked: May 23, 2020In: DT & NDT

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

Asked: May 22, 2020In: DT & NDT

How do we measure magnetic property in a material?

Askmemetallurgy OfficialGold

Asked: May 6, 2020In: DT & NDT

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

Poll Results

6.25%Magnetism ( 8 voters )

1.56%Sound propagation ( 2 voters )

3.13%X-ray absorption ( 4 voters )

89.06%Capillary action ( 114 voters )

Based On 128 Votes

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Askmemetallurgy OfficialGold

Asked: April 9, 2020In: DT & NDT

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

Poll Results

10.34%(A) Pre- and post-cleaning of parts are not required ( 3 voters )

0%(B) Internal defects can be detected ( 0 voters )

13.79%(C) Surface oxides helps in crack identification ( 4 voters )

75.86%(D) Dye with low contact angle is required ( 22 voters )

Based On 29 Votes

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Askmemetallurgy OfficialGold

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 ____.

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

Poll Results

10.26%(A) 210 ( 4 voters )

69.23%(B) 220 ( 27 voters )

15.38%(C) 222 ( 6 voters )

5.13%(D) 310 ( 2 voters )

Based On 39 Votes

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