Questions 191–200 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 20 of 65

Question 61

Open question
MTNAT2 marksNeeds review
80

of A-B alloy containing 20 wt.% B is held at temperature

. The weight of B dissolved in

at that temperature is ________

. (Round off to the nearest integer).
Diagram for Metallurgical Engineering question 61


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 answer

Question 62

Open question
MTNAT2 marksNeeds review
A mild steel pipeline is connected to zinc for cathodic protection at a current density of 10

. The quantity of zinc required per square meter of the pipeline per year is ________

. (Round off to the nearest integer).
Given: Atomic weight of Zn is 65

Faraday’s constant

(of electrons)

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 answer

Question 63

Open question
MTNAT2 marksNeeds review
A large rectangular component is undergoing fully-reversed cyclic loading, and the component is known to grow the dominant fatigue crack from the outer surface. If the stress amplitude (

) is 100

and the critical stress intensity factor

of the material is 50

then the crack length at which the component will fail catastrophically is _____

. (Round off to one decimal place)
Given: The geometric factor

for this loading condition is 1.12.

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 answer

Question 64

Open question
MTNAT2 marksNeeds review
In casting, for a simple vertical gating system with a gate of cross-sectional area 2

and sprue height of 10

, the filling time for a mould of dimensions 40

, is ________

. (Round off to one decimal place)
Given: Acceleration due to gravity


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 answer

Question 65

Open question
MTNAT2 marksNeeds review
During arc welding, the actual heat input is 200

and the current and voltage are 200 A and 20 V, respectively. For a weld cross-sectional area of 2

and heat transfer efficiency of 0.9, the velocity of welding is ________

. (Round off to the nearest integer).

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 answer

Question 1

Open question
GAMCQ1 markNeeds review
“You are delaying the completion of the task. Send ______ contributions at the earliest.”
Your answerChoose one option.

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 answer

Question 2

Open question
GAMCQ1 markNeeds review
References : ______ :: Guidelines : Implement (By word meaning)
Your answerChoose one option.

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 answer

Question 3

Open question
GAMCQ1 markNeeds review
In the given figure, PQRS is a parallelogram with PS = 7 cm, PT = 4 cm and PV = 5 cm. What is the length of RS in cm? (The diagram is representative.)
Diagram for Metallurgical Engineering question 3

Your answerChoose one option.

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 answer

Question 4

Open question
GAMCQ1 markNeeds review
In 2022, June Huh was awarded the Fields medal, which is the highest prize in Mathematics.
When he was younger, he was also a poet. He did not win any medals in the International Mathematics Olympiad. He dropped out of college.
Based only on the above information, which one of the following statements can be logically inferred with certainty?
Your answerChoose one option.

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 answer

Question 5

Open question
GAMCQ1 markNeeds review
A line of symmetry is defined as a line that divides a figure into two parts in a way such that each part is a mirror image of the other part about that line.
The given figure consists of 16 unit squares arranged as shown. In addition to the three black squares, what is the minimum number of squares that must be colored black, such that both PQ and MN form lines of symmetry? (The figure is representative)
Diagram for Metallurgical Engineering question 5

Your answerChoose one option.

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 answer