Metallurgical Engineering
2020 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE MT 2020 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 31–33 of 65. Imported answers require review unless explicitly marked reviewed.
Question 21
Open questionMTNAT1 markNeeds review
For the function
given in the figure, the value of
is _____ (round off to one decimal place). 
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Open questionMTNAT1 markNeeds review
A component subjected to tensile stress in a mechanical device is monitored periodically for cracks by NDT. The NDT technique can only detect cracks (both surface and internal) which are larger than 1 mm. Keeping a 10% margin of safety, the maximum allowed tensile stress on the component will be _____ MPa (round off to the nearest integer).
Given, fracture toughness
and assume crack geometry factor of unity.Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 23
Open questionMTNAT1 markNeeds review
An iron plate with a total exposed surface area of 50 cm
undergoes atmospheric corrosion. If 200 g of weight is lost over a period of 10 years, then the corrosion rate is _____ kg·m
·year
(round off to the nearest integer).Log in to check the answer
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