Kuiz 1 Destructive Test

Kuiz 1 Destructive Test

University

10 Qs

quiz-placeholder

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Kuiz 1 Destructive Test

Kuiz 1 Destructive Test

Assessment

Quiz

Science

University

Medium

Created by

HAFIZUL KPM-Guru

Used 1+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Apakah tujuan utama ujian macro etch?

Mengukur kelajuan pengecutan

Mendedahkan penembusan kimpalan dan struktur makro

Mengesan retakan mikro

Memeriksa kemasan permukaan

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Standard manakah merangkumi ujian macro etch untuk struktur logam

ASTM E290

ASTM A561

AWS D1.1

SME IX

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Etchant apa yang biasa digunakan untuk ujian macro etch keluli karbon

Asid hidrofluorik

Nital Solution

Hanya asid sulfurik dan nitrik

Etching elektrolitik sahaja

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Semasa penyediaan spesimen untuk ujian macro etch, permukaan perlu digilap sekurang‑kurangnya hingga grit

240

600

1200

Tidak perlu digilap

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Menurut ASTM E381, apakah yang akan terdedah selepas macroetch

Retakan mikro sahaja

Susunan butir (grain flow), porositi, retakan

Variasi kekerasan

Warna Kimpalan

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Apakah tujuan utama nick break test?

Ukur tenaga impak

Menilai kimpalan, porositi, dan kekotoran slag

Tentukan kekerasan bahan

Memeriksa struktur mikro HAZ

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Manakah antara berikut BUKAN kecacatan yang dapat dikesan oleh nick break test?

Weld Fusion

Porosity

Slag Inclusion

Hardness

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